fullmoon vs Mass Compass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
fullmoon
This app provides a private and offline way to interact with local large language models. It runs models directly on your device, optimized for Apple silicon, and is available across multiple Apple platforms. Personalize your experience and integrate with other apps via Shortcuts.
- Private LLM chat
- Fully offline operation
- On-device model execution
- Cross-platform Apple support
- Customizable themes and fonts
- Shortcut integration
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the simplest way to use private LLMs: works fully offline and private when you don’t have internet. runs models on-device optimized for Apple silicon. works on every platform: iOS, iPadOS, macOS, visionOS personalize: adjust the theme, fonts, and system prompt in the app. Shortcut: chat with fullmoon or get an output from a local model to use with other actions. free, open source, private.
Mass Compass
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Mass Compass helps Catholics find the right parish, the right Mass time, and the confidence to get there. Open the app to a Sunday Mass planner. Browse a regional Catholic parish directory, search by parish or city, filter for confession times, weekday Masses, Spanish Masses, holy days, saved parishes, or today's schedule, and open the details you need before you leave. Mass Compass includes: - Sunday Mass discovery with Saturday Vigil options - A Catholic parish directory for Northern Virginia, Williamsburg, Virginia Beach, Estero/Fort Myers, Jacksonville, and nearby supported areas - Optional location sorting to show nearby churches first - Saved favorite parishes and preferred Sunday Mass times - Confession time listings where available - Holy day of obligation planning for the current U.S. calendar - Parish detail pages with Mass schedules, confession notes, phone, website, and Apple Maps actions - A map view for scanning churches by location - Light, Dark, and System appearance settings Mass schedules can change. Mass Compass includes parish website links and verification reminders so you can confirm the latest schedule directly with the parish before traveling.
Screenshots
Verdict
The clearest difference is update cadence: Mass Compass at every 3 days against fullmoon's every 10 days. fullmoon's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
fullmoon ships an update every 10 days, Mass Compass every 3 days. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | fullmoon | Mass Compass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (100 ratings) — better | — |
| Positive reviews | 77.8% of reviews | — |
| Number of ratings | 100 — better | — |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 25 MB |
| Age rating | 17+ | 4+ |
| Developer | Mainframe Computer, Inc. | Raven Vector |
Bugs and requests
fullmoon
Reported bugs
2 issues- Incompatibility with iPhone SE2 and iPad Pro Gen3 despite supporting Metal 3
- Deepseek models not working on some devices
Requested features
6 requests- Add support for saving/copying full chat conversations
- Expand functionality through Shortcuts integration
- Provide more advanced language models
- Allow users to remove/delete downloaded models
- Add support for attaching files and images
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- Implement voice mode and customizable AI models
Mass Compass
Not enough reviews yet to summarise bugs or requests.
In-app purchases
fullmoon
No in-app purchases
Mass Compass
No in-app purchases









