Coordinating Mass coverage should be straightforward.
With Clerus, it can be.
Priests post Mass coverage needs in moments — and brother priests across the diocese can see what’s needed and step in.
This is why we built Clerus.
From our years serving in the Church — one of us as a priest, one as a hospice chaplain — we kept seeing the same quiet gap: a priest who needed a Mass covered, and brother priests who would have gladly stepped in — with no simple way for them to find each other. It was true then. With fewer priests covering more ground, that gap is only widening.
Clerus closes that gap — connecting priests who need coverage with those who are ready to help, so the time away they need actually becomes possible. Not to replace the relationships that make coverage work now; but to give them better infrastructure: a secure, private platform built for how Catholic dioceses actually operate.
There's more to coordinate than there used to be.
The 2025 National Study of Catholic Priests — the largest study of US priests in over fifty years — shows what that looks like for priests across the country.
Beyond the usual few
Mass coverage has long run on a handful of nearby brothers a pastor knew he could call. As parishes lean on fewer priests, that familiar circle isn't always enough.
Pulled in more directions
Among priests ordained since 2000, nearly half say they're expected to do too much beyond their calling — compared to just 13% of those ordained before 1980. Much of that too much is logistics: the coordination around the ministry, not the ministry itself.
40% serve two or more parishes
As fewer priests serve in active ministry, those who remain shoulder the weight of multiple communities — and the coordination that comes with it. That coordination grows with every added parish.
A retreat starts with one question
Priests serving multiple parishes still want the retreats, study, and time away that the priesthood asks for. But for many, the time away begins with a single practical question: who covers the Masses?
Coordinating Mass coverage should be straightforward.
Coordinating Mass coverage should be straightforward.
Coordinating Mass coverage should be straightforward.
Coordinating Mass coverage
should be straightforward.
With Clerus, it can be.
With Clerus, it can be.
With Clerus, it can be.
With Clerus, it can be.
Priests post Mass coverage needs in moments — and brother priests across the diocese can see what’s needed and step in.
Priests post Mass coverage needs in moments — and brother priests across the diocese can see what’s needed and step in.
Priests post Mass coverage needs in moments — and brother priests across the diocese can see what’s needed and step in.
Priests post Mass coverage needs in moments — and brother priests across the diocese can see what’s needed and step in.
Begin a Conversation
There's more to coordinate than there used to be.
There's more to coordinate than there used to be.
There's more to coordinate than there used to be.
There's more to coordinate than there used to be.
The 2025 National Study of Catholic Priests — conducted by The Catholic Project at The Catholic University of America — shows what that looks like for priests across the country.
The 2025 National Study of Catholic Priests — conducted by The Catholic Project at The Catholic University of America — shows what that looks like for priests across the country.
The 2025 National Study of Catholic Priests — conducted by The Catholic Project at The Catholic University of America — shows what that looks like for priests across the country.
40% serve two or more parishes
40% serve two or more parishes
As fewer priests serve in active ministry, those who remain shoulder the weight of multiple communities — and the coordination that comes with it. That coordination grows with every added parish.
As fewer priests serve in active ministry, those who remain shoulder the weight of multiple communities — and the coordination that comes with it. That coordination grows with every added parish.
As fewer priests serve in active ministry, those who remain shoulder the weight of multiple communities — and the coordination that comes with it. That coordination grows with every added parish.
Beyond the usual few
Beyond the usual few
Mass coverage has long run on a handful of nearby brothers a pastor knew he could call. As parishes lean on fewer priests, that familiar circle isn't always enough.
Mass coverage has long run on a handful of nearby brothers a pastor knew he could call. As parishes lean on fewer priests, that familiar circle isn't always enough.
Mass coverage has long run on a handful of nearby brothers a pastor knew he could call. As parishes lean on fewer priests, that familiar circle isn't always enough.
Pulled in more directions
Pulled in more directions
Pulled in more directions
Among priests ordained since 2000, nearly half say they're expected to do too much beyond their calling — compared to just 13% of those ordained before 1980. Much of that 'too much' is logistics: the coordination around the ministry, not the ministry itself.
Among priests ordained since 2000, nearly half say they're expected to do too much beyond their calling — compared to just 13% of those ordained before 1980. Much of that too much is logistics: the coordination around the ministry, not the ministry itself.
Among priests ordained since 2000, nearly half say they're expected to do too much beyond their calling — compared to just 13% of those ordained before 1980. Much of that too much is logistics: the coordination around the ministry, not the ministry itself.
Among priests ordained since 2000, nearly half say they're expected to do too much beyond their calling — compared to just 13% of those ordained before 1980. Much of that too much is logistics: the coordination around the ministry, not the ministry itself.
A retreat starts with one question
A retreat starts with one question
Priests serving multiple parishes still want the retreats, study, and time away that the priesthood asks for. But for many, the time away begins with a single practical question: who covers the Masses?
Priests serving multiple parishes still want the retreats, study, and time away that the priesthood asks for. But for many, the time away begins with a single practical question: who covers the Masses?
Priests serving multiple parishes still want the retreats, study, and time away that the priesthood asks for. But for many, the time away begins with a single practical question: who covers the Masses?
This is why we built Clerus
This is why we built Clerus
This is why we built Clerus
From our years serving in the Church — one of us as a priest, one as a hospice chaplain — we kept seeing the same quiet gap: a priest who needed a Mass covered, and brother priests who would have gladly stepped in — with no simple way for them to find each other. It was true then. With fewer priests covering more ground, that gap is only widening.
From our years serving in the Church — one of us as a priest, one as a hospice chaplain — we kept seeing the same quiet gap: a priest who needed a Mass covered, and brother priests who would have gladly stepped in — with no simple way for them to find each other. It was true then. With fewer priests covering more ground, that gap is only widening.
From our years serving in the Church — one of us as a priest, one a hospice chaplain — we kept seeing the same quiet gap: a priest who needed a Mass covered, and brother priests who would have gladly stepped in — with no simple way for them to find each other. It was true then. With fewer priests covering more ground, that gap is only widening.
Clerus closes that gap — connecting priests who need coverage with those in the diocese who are ready to help, so the time away they need actually becomes possible. Not to replace the relationships that make coverage work now; but to give them better infrastructure: a secure, private platform built for how Catholic dioceses actually operate.
Clerus closes that gap — connecting priests who need coverage with those in the diocese who are ready to help, so the time away they need actually becomes possible. Not to replace the relationships that make coverage work now; but to give them better infrastructure: a secure, private platform built for how Catholic dioceses actually operate.
Clerus closes that gap — connecting priests who need coverage with those in the diocese who are ready to help, so the time away they need actually becomes possible. Not to replace the relationships that make coverage work now; but to give them better infrastructure: a secure, private platform built for how Catholic dioceses actually operate.
Mass coverage, simplified by Clerus:
1
Post the Coverage Need
A priest needs Mass coverage — for a retreat, a day of rest, or something unexpected. He opens Clerus, fills in the details, and posts the request in seconds.
2
A Priest Claims It
Brother priests in the diocese — retired, religious, and those with room in their schedule — see the request on Clerus. With one tap, a priest claims the Mass — and the posting priest is notified instantly.
3
Coverage Confirmed
The covering priest receives parking instructions, sacristy notes, and the day-of contact. Custom reminders keep coverage on his radar, no matter how full his schedule gets.
Mass coverage, simplified by Clerus
Mass coverage, simplified by Clerus
1
Post the Coverage Need
A priest needs Mass coverage — for a retreat, a day of rest, or something unexpected. He opens Clerus, fills in the details, and posts the request in seconds.
2
A Priest Claims It
Brother priests in the diocese — retired, religious, and those with room in their schedule — see the request on Clerus. With one tap, a priest claims the Mass — and the posting priest is notified instantly.
3
Coverage Confirmed
The covering priest receives parking instructions, sacristy notes, and the day-of contact — added directly to his calendar. Custom reminders keep coverage on his radar, no matter how full his schedule gets.
1
Post the Coverage Need
A priest needs Mass coverage — for a retreat, a day of rest, or something unexpected. He opens Clerus, fills in the details, and posts the request in seconds.
2
A Priest Claims It
Brother priests in the diocese — retired, religious, and those with room in their schedule — see the request on Clerus. With one tap, a priest claims the Mass — and the posting priest is notified instantly.
3
Coverage Confirmed
The covering priest receives parking instructions, sacristy notes, and the day-of contact. Custom reminders keep coverage on his radar, no matter how full his schedule gets.
Mass coverage, simplified by Clerus:
1
Post the Coverage Need
A priest needs Mass coverage — for a retreat, a day of rest, or something unexpected. He opens Clerus, fills in the details, and posts the request in seconds.
2
A Priest Claims It
Brother priests in the diocese — retired, religious, and those with room in their schedule — see the request on Clerus. With one tap, a priest claims the Mass — and the posting priest is notified instantly.
3
Coverage Confirmed
The covering priest receives parking instructions, sacristy notes, and the day-of contact. Custom reminders keep coverage on his radar, no matter how full his schedule gets.
Designed for Catholic dioceses
Built for how dioceses actually work.
Designed for Catholic dioceses
Designed for Catholic dioceses
Divine Mercy Parish, Linden
Divine Mercy Parish, Linden
Sun, May 17
Sun, May 17
10:00 AM
10:00 AM
Claim
Claim
St. Ann's Parish, Elmsford
St. Ann's Parish, Elmsford
Sat, May 23
Sat, May 23
4:00 PM
4:00 PM
Claim
Claim
Aquinas Newman Center, Granby
Aquinas Newman Center, Granby
Tue, May 26
Tue, May 26
12:10 PM
12:10 PM
Claim
Claim
Our Lady of Peace, Milton
Our Lady of Peace, Milton
Sun, May 31
Sun, May 31
8:30 AM
8:30 AM
Spanish
Spanish
Claim
Claim
Every open Mass, in one place
Every open Mass, in one place
Every open Mass, in one place
Every open Mass, in one place
The Coverage Board gives priests across the diocese a single view of every open Mass coverage need. They can filter by distance from home, date range, language, or deanery — so a retired priest three miles away sees what matters to him, not requests on the other side of the diocese.
The Coverage Board gives priests across the diocese a single view of every open Mass coverage need. They can filter by distance from home, date range, language, or deanery — so a retired priest three miles away sees what matters to him, not requests on the other side of the diocese.
The Coverage Board gives priests across the diocese a single view of every open Mass coverage need. They can filter by distance from home, date range, language, or deanery — so a retired priest three miles away sees what matters to him, not requests on the other side of the diocese.
Invite specific priests first
Invite specific priests first
Invite specific priests first
Invite specific priests first
A priest can invite specific brother priests to cover a Mass in a chosen order before a request ever appears on the Coverage Board. If the first priest can't cover it, Clerus moves to the next — without any follow-up needed.
A priest can invite specific brother priests to cover a Mass in a chosen order before a request ever appears on the Coverage Board. If the first priest can't cover it, Clerus moves to the next — without any follow-up needed.
A priest can invite specific brother priests to cover a Mass in a chosen order before a request ever appears on the Coverage Board. If the first priest can't cover it, Clerus moves to the next — without any follow-up needed.
Already arranged coverage at a deanery meeting? Record it in Clerus so everything stays on the calendar and everyone stays informed, even when the coordination happened in person.
Already arranged coverage at a deanery meeting? Record it in Clerus so everything stays on the calendar and everyone stays informed, even when the coordination happened in person.
Already arranged coverage at a deanery meeting? Record it in Clerus so everything stays on the calendar and everyone stays informed, even when the coordination happened in person.
Already arranged coverage at a deanery meeting? Record it in Clerus so everything stays on the calendar and everyone stays informed, even when the coordination happened in person.
Coverage Board
Coverage Board
Invite First
Invite First
Pre-Arranged
Pre-Arranged
Invite specific priests in priority order:
Invite specific priests in priority order:
Search and add priests…
Search and add priests…
1
1
Fr. Robert Callahan
Fr. Robert Callahan
2
2
Msgr. James Whitfield
Msgr. James Whitfield
3
3
Fr. Thomas Morales, OFM
Fr. Thomas Morales, OFM
Response window:
Response window:
2
▲
▼
days before next priest is invited.
days before next priest is invited.
Arrival and Access
Arrival and Access
Park in the lot on the north side of the McNeely Family Pastoral Center. Use the door on Oak St, code is 3841.
Park in the lot on the north side of the McNeely Family Pastoral Center. Use the door on Oak St, code is 3841.
Sacristy Notes
Sacristy Notes
Tabernacle key is on hook above the sacrarium. Wireless mic is on the shelf, hold ON for 3 seconds. Announcements are in the green binder next to the presider's chair.
Tabernacle key is on the left hook above the sacrarium. Wireless mic is on the shelf, hold ON for 3 sec. Announcements are in the green binder.
Sat 4p
Sat 4p
Patricia Holden · (611) 585-0182
Patricia Holden · (611) 585-0182
Sun 10a
Sun 10a
Anne Callahan · (611) 227-8330
Anne Callahan · (611) 227-8330
Because every parish is different
Because every parish is different
Because every parish is different
Because every parish is different
A pastor sets up his parishes once — arrival instructions, liturgy notes, sacristy layout, and who will be there to help him get set up. Those details go out automatically with every coverage confirmation, so a visiting priest feels welcomed and looks forward to returning.
A pastor sets up his parishes once — arrival instructions, liturgy notes, sacristy layout, and who will be there to help him get set up. Those details go out automatically with every coverage confirmation, so a visiting priest feels welcomed and looks forward to returning.
A pastor sets up his parishes once — arrival instructions, liturgy notes, sacristy layout, and who will be there to help him get set up. Those details go out automatically with every coverage confirmation, so a visiting priest has what he needs the moment he arrives.
A pastor sets up his parishes once — arrival instructions, liturgy notes, sacristy layout, and who will be there to help him get set up. Those details go out automatically with every coverage confirmation, so a visiting priest feels welcomed and looks forward to returning.
A weekly coverage report keeps parish staff informed — who covered what, and when — so nothing falls through the cracks.
A weekly coverage report keeps parish staff informed — who covered what, and when — so nothing falls through the cracks.
A weekly coverage report keeps parish staff informed — who covered what, and when — so nothing falls through the cracks.
When Mass coverage just works.
The Vicar for Clergy
When something unexpected comes up — like a priest in the hospital — it's no longer an emergency on top of an emergency. Brother priests hear of the need, check Clerus, and step in to help.
The Day to Recharge
After three weeks without a break, a pastor just needs a day to step back. Clerus makes arranging coverage as simple as it should be — so getting rest doesn't become one more thing on the list.
The Family Reunion
A priest plans a trip home six months out. He posts his coverage needs on Clerus and it's confirmed within days — no phone calls, no email chains.
The Newly Ordained
A priest newly assigned to a parish with two missions is still getting to know his brother priests. Clerus connects him to those across the diocese who are ready to help — relationships that would otherwise take years to build.
The Planned Absence
A priest facing surgery is looking at weeks away and a stack of Masses to arrange. Instead of making calls from a hospital bed, he posts the whole stretch at once — and brother priests fill in, week by week, while he recovers.
The Retired Monsignor
With Clerus, a retired monsignor can see exactly what's needed and where — and choose the Masses that fit his pace. Maybe it's a Sunday in a corner of the diocese he hasn't been back to in years.
When Mass coverage just works.
The Vicar for Clergy
When something unexpected comes up — like a priest in the hospital — it's no longer an emergency on top of an emergency. Brother priests hear of the need, check Clerus, and step in to help.
The Day to Recharge
After three weeks without a break, a pastor just needs a day to step back. Clerus makes arranging coverage as simple as it should be — so getting rest doesn't become one more thing on the list.
The Family Reunion
A priest plans a trip home six months out. He posts his coverage needs on Clerus and it's confirmed within days — no phone calls, no email chains.
The Newly Ordained
A priest newly assigned to a parish with two missions is still getting to know his brother priests. Clerus connects him to those across the diocese who are ready to help — relationships that would otherwise take years to build.
The Retired Monsignor
With Clerus, a retired monsignor can see exactly what's needed and where — and choose the Masses that fit his pace. Maybe it's a Sunday in a corner of the diocese he hasn't been back to in years.
The Planned Absence
A priest facing surgery is looking at weeks away and a stack of Masses to arrange. Instead of making calls from a hospital bed, he posts the whole stretch at once — and brother priests fill in, week by week, while he recovers.
When Mass coverage just works.
The Vicar for Clergy
When something unexpected comes up — like a priest in the hospital — it's no longer an emergency on top of an emergency. Brother priests hear of the need, check Clerus, and step in to help.
The Day to Recharge
After three weeks without a break, a pastor just needs a day to step back. Clerus makes arranging coverage as simple as it should be — so getting rest doesn't become one more thing on the list.
The Family Reunion
A priest plans a trip home six months out. He posts his coverage needs on Clerus and it's confirmed within days — no phone calls, no email chains.
The Newly Ordained
A priest newly assigned to a parish with two missions is still getting to know his brother priests. Clerus connects him to those across the diocese who are ready to help — relationships that would otherwise take years to build.
The Retired Monsignor
With Clerus, a retired monsignor can see exactly what's needed and where — and choose the Masses that fit his pace. Maybe it's a Sunday in a corner of the diocese he hasn't been back to in years.
The Planned Absence
A priest facing surgery is looking at weeks away and a stack of Masses to arrange. Instead of making calls from a hospital bed, he posts the whole stretch at once — and brother priests fill in, week by week, while he recovers.
When Mass coverage just works.
When Mass coverage just works.
The Vicar for Clergy
The Vicar for Clergy
When something unexpected comes up — like a priest in the hospital — it's no longer an emergency on top of an emergency. Brother priests hear of the need, check Clerus, and step in to help.
When something unexpected comes up — like a priest in the hospital — it's no longer an emergency on top of an emergency. Brother priests hear of the need, check Clerus, and step in to help.
The Day to Recharge
The Day to Recharge
After three weeks without a break, a pastor just needs a day to step back. Clerus makes arranging coverage as simple as it should be — so getting rest doesn't become one more thing on the list.
After three weeks without a break, a pastor just needs a day to step back. Clerus makes arranging coverage as simple as it should be — so getting rest doesn't become one more thing on the list.
The Family Reunion
The Family Reunion
A priest plans a trip home six months out. He posts his coverage needs on Clerus and it's confirmed within days — no phone calls, no email chains.
A priest plans a trip home six months out. He posts his coverage needs on Clerus and it's confirmed within days — no phone calls, no email chains.
The Newly Ordained
The Newly Ordained
A priest newly assigned to a parish with two missions is still getting to know his brother priests. Clerus connects him to those across the diocese who are ready to help — relationships that would otherwise take years to build.
A priest newly assigned to a parish with two missions is still getting to know his brother priests. Clerus connects him to those across the diocese who are ready to help — relationships that would otherwise take years to build.
The Planned Absence
The Planned Absence
A priest facing surgery is looking at weeks away and a stack of Masses to arrange. Instead of making calls from a hospital bed, he posts the whole stretch at once — and brother priests fill in, week by week, while he recovers.
A priest facing surgery is looking at weeks away and a stack of Masses to arrange. Instead of making calls from a hospital bed, he posts the whole stretch at once — and brother priests fill in, week by week, while he recovers.
The Retired Monsignor
The Retired Monsignor
With Clerus, a retired monsignor can see exactly what's needed and where — and choose the Masses that fit his pace. Maybe it's a Sunday in a corner of the diocese he hasn't been back to in years.
With Clerus, a retired monsignor can see exactly what's needed and where — and choose the Masses that fit his pace. Maybe it's a Sunday in a corner of the diocese he hasn't been back to in years.
We'd love to show you what Clerus can do for your presbyterate.
Begin a Conversation
We'd love to show you what Clerus can do for your presbyterate.
Begin a Conversation
We'd love to show you what Clerus can do for your presbyterate.
We'd love to show you what Clerus can do for your presbyterate.
We'd love to show you what Clerus can do for your presbyterate.
Clerus
Built and run by Natasha and Michael Hennessy in Grand Rapids, Michigan.
Clerus
Clerus
Built and run by Natasha and Michael Hennessy in Grand Rapids, Michigan.