Plan B Forum vs SentryChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Plan B Forum
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For Plan ₿ events worldwide, access event schedules, connect with fellow attendees, and set up 1:1 meetings seamlessly
SentryChat
This secure messaging app uses your SentryCard and biometric data to encrypt and decrypt messages, ensuring only the intended recipient can read them. Manage your contacts and send/receive highly protected communications.
- Biometric-based encryption
- SentryCard integration
- Encrypted message sending/receiving
- Contact management
- Fingerprint enrollment
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SentryChat enables highly secure messaging with other SentryChat users. SentryChat uses your biometrically-enrolled SentryCard to encrypt and decrypt messages. More importantly, only the intended recipient can decrypt a message. With this app, you can: * Optionally step through guided fingerprint enrollment to secure a new SentryCard * Manage contacts * Send and receive encrypted messages
Screenshots
Verdict
Plan B Forum and SentryChat are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Plan B Forum ships an update every 6 weeks, SentryChat every 2 months. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.
| Parameter | Plan B Forum | SentryChat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 — better | 16 |
| Further details — not scored | ||
| Size | 96 MB | 160 MB |
| Age rating | 17+ | 4+ |
| Developer | AltKey SA | Sentry Enterprises |
In-app purchases
Plan B Forum
No in-app purchases
SentryChat
No in-app purchases
