Epistle helps missionaries stay close to the people who pray for them and give to their work, without turning the newsletter into a second job.^1 You post short updates with photos and videos as ministry happens. Epistle bundles those posts into emails and sends each partner a digest at the cadence that partner chose - daily, weekly, or monthly. Partners can answer with likes, prayers, comments, and giving from the email, so an update becomes a conversation.^1
The same workspace covers Ministry Partner Development (MPD) in one place: donor and donation records with continuous sync from systems like Partner Essentials and DonorHub, an MPD-first CRM, commitment tracking, income and expense views, multi-currency support, task management, and AI-powered MPD coaching and training.^3 Updates can also be sent only to certain groups of partners, using ministry partner segments.^4 Epistle says it has sent more than 20 million email updates for missionaries serving with organizations such as Cru, YWAM, Pioneers, InterVarsity, and Young Life.^1
Frankie and Chelsea O'Rourke founded Epistle in 2014 while serving with Cru in Moscow, after feeling the strain of writing newsletters and then losing half of their income suddenly.^5 In 2021 they moved to Oaxaca, Mexico to lead a church plant, and they now work bi-vocationally on the church plant and on Epistle.^5 In 2026 Frankie taught a Support Raising Leaders Conference workshop on using AI as an administrative assistant in MPD while keeping partner connections genuine, not automated.^6 Epistle LLC also works with Solertiae on a migration path for Partner Essentials users.^7
For sensitive contexts, Epistle offers private posts, an invisible-mode site, and notification-only emails, and it says those tools are not a substitute for an organization's own security plan.^8 It runs on the web, iPhone, and Android, and it is subscription-based with a free trial and a choice of a full plan or an MPD-only plan.^3^10
One missionary put the day-to-day effect this way:
"I originally got Epistle for my ministry partners, but I keep it for myself. I love the intentionality it fosters."^12
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