Epistle vs The GAPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Epistle
This app facilitates communication and financial support for missionaries. It allows for easy sharing of ministry updates with photos and videos, automatically sending them to ministry partners who can respond with engagement. It simplifies the process of connecting with supporters and managing ministry outreach.
- Share ministry updates with photos and video
- Automatic update distribution to partners
- Ministry partner engagement (likes, prayers, comments)
- Manage ministry sites
- Connect with ministry partners
- Automated email platform
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Epistle is used by thousands of missionaries to stay connected and funded. It has never been easier to share ministry updates with photos and video. No more hassle with email templates, scheduling, etc. Epistle sends your updates to ministry partners, automatically, using our world-class email platform and gives them the opportunity to respond with likes, prayers and comments. Both missionaries and ministry partners love Epistle: "The greatest thing I could do for my ministry partners." "HIGHLY RECOMMENDED! Do the two week trial." Supporter: "I feel confident I'm investing well." With paid Epistle subscription you can manage your Epistle site, send updates, and connect with ministry partners. Ministry partners can access Epistle sites to read and respond to your updates without payment. Terms of Use: https://www.epistle.org/terms-of-use/
The GAPP
This tool helps ministries track missional activities and their impact. It allows offline data entry, streamlined workflows, and seamless collaboration for field teams. Empower global ministry with support for over 110 languages and secure biometric login.
- Offline activity entry and syncing
- Simplified interface for reduced entry time
- Activity shortcuts and customizable platform
- Effortless data management and editing
- Secure biometric login (Face ID, Touch ID)
- Support for 110+ languages
- Team management and user permissions
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Gospel to All Peoples and Places (GAPP) is a tool to help you see where God is at work so you, your team, your church and your ministry can join him in that work. It is an innovative, scalable, and customizable software, distributed by Ta Ethni, that allows any agency, network, church or even a single user to track any missional, church planting, or disciple-making activities and metrics, as well as their future impact, in whichever context they are working. Experience the Freedom to Minister Anywhere! With GAPP mobile, you can: - Empower field workers globally: Enter activities offline, anywhere in the world, and sync them when you're back online. - Maximize your time in the field: Our simplified interface reduces activity entry time, keeping you focused on the work that matters. - Streamline your workflow: Utilize activity shortcuts, pinned teams, and a customizable platform to optimize your tracking experience on the go. - Effortless data management: Quickly find and edit activities, even offline, to keep your data up-to-date. Secure access: Login quickly and securely with biometric security features like Face ID, Touch ID, and more. Cast vision and empower church health: Our church view and GenMapper layout provide powerful coaching tools at your fingertips. - Collaborate seamlessly: GAPP mobile enables field teams to work together, from the jungles to the mountains. - Reach the world in their language: With support for 110+ languages, you can empower tracking and ministry in every corner of the globe. - Easy administration: Manage teams, user permissions, and user information with ease, all within the app. Utilize the GAPP web application (thegapp.app) for: - Linking and repeating activities - Real-time visualizations using powerful dashboards - Deepened search and explorer views - See your activities on a global scale with mapping tools - Access powerful research tools like the People Group Dashboard Support – visit TaEthni.com/GAPP or email service-desk@taethni.com
Screenshots
Verdict
The clearest difference is in-app purchases: The GAPP at none against Epistle's 5. Epistle's advantage is iOS requirement (12.0 vs 15.0). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Epistle sells 5 in-app purchases, starting at $17.99 per month. The GAPP asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Epistle against 4.9 for The GAPP. Both are backed by a comparable volume of ratings — 9 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Epistle ships an update every 3 weeks, The GAPP monthly. The most recent releases landed on August 24, 2026 and August 15, 2026 respectively.
| Parameter | Epistle | The GAPP |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) — better | 4.9 (8 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 — better | 8 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 50 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Epistle LLC | TA ETHNI, LLC |
Customer experience
Epistle
The GAPP
In-app purchases
Epistle
- One Epistle Site$17.991 Month
- Two Epistle Sites$39.991 Month
- Three Epistle Sites$59.991 Month
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- Four Epistle Sites$79.991 Month
- Five Epistle Sites$89.991 Month
The GAPP
No in-app purchases









