# CellSyncPro vs Tacendum

The clearest difference is iOS requirement: Tacendum at 15.1 against CellSyncPro's 17.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CellSyncPro ships an update every 3 weeks, Tacendum every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CellSyncPro | Tacendum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tacendum-private-messaging/id6797617669/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 32 MB | 62 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Christopher Jordan](https://appshunter.io/developer/1781195173) | [Mirana Technologies Inc.](https://appshunter.io/developer/6797617671) |

## What reviewers say

### CellSyncPro

[App page](https://appshunter.io/ios/app/cellsyncpro/id6738572893)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### Tacendum

[App page](https://appshunter.io/ios/app/tacendum-private-messaging/id6797617669)

This app offers end-to-end encrypted private messaging, rooms, and calls without requiring any personal sign-up information. It prioritizes user privacy with features like disappearing messages and screenshot notifications.

**Highlights:** End-to-end encrypted chats, rooms, and calls, No sign-up required (phone number, email, username, password), Disappearing messages with customizable timers, Screenshot disclosure and screen recording protection, App lock with decoy option, Optional findability via ID sharing or linked credentials

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CellSyncPro free?

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

### Is Tacendum free?

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

### Do CellSyncPro or Tacendum have ads?

Neither CellSyncPro nor Tacendum shows ads.

### Which is updated more often, CellSyncPro or Tacendum?

CellSyncPro ships an update every 3 weeks, and Tacendum every 2 weeks. Most recently, CellSyncPro was updated on October 25, 2026 and Tacendum on October 24, 2026.

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