# Plan B Forum vs SentryChat

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.

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.

## The numbers

| Metric | Plan B Forum | SentryChat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sentrychat/id6751300963/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 96 MB | 160 MB |
| Requires iOS | **15.6** | 16 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [AltKey SA](https://appshunter.io/developer/1770292938) | [Sentry Enterprises](https://appshunter.io/developer/1604634176) |

## What reviewers say

### Plan B Forum

[App page](https://appshunter.io/ios/app/plan-b-forum/id6714478148)

**In-app purchases:** none


### SentryChat

[App page](https://appshunter.io/ios/app/sentrychat/id6751300963)

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.

**Highlights:** Biometric-based encryption, SentryCard integration, Encrypted message sending/receiving, Contact management, Fingerprint enrollment

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Plan B Forum free?

Plan B Forum is free to download, with no in-app purchases.

### Is SentryChat free?

SentryChat is free to download, with no in-app purchases.

### Do Plan B Forum or SentryChat have ads?

Neither Plan B Forum nor SentryChat shows ads.

### Which is updated more often, Plan B Forum or SentryChat?

Plan B Forum ships an update every 6 weeks, and SentryChat every 2 months. Most recently, Plan B Forum was updated on September 17, 2026 and SentryChat on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*