# Todo vs Cipher Authenticator

The clearest difference is update cadence: Todo at every 2 weeks against Cipher Authenticator's every 4 months. Cipher Authenticator's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Todo ships an update every 2 weeks, Cipher Authenticator every 4 months. The most recent releases landed on May 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Todo | Cipher Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Size | 30 MB | 38 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Solid enterprise s.r.o.](https://appshunter.io/developer/1833248770) | [Siddharth Patankar](https://appshunter.io/developer/1851495313) |

## What reviewers say

### Todo

[App page](https://appshunter.io/ios/app/todo-tasks-and-notes/id6751848206)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cipher Authenticator

[App page](https://appshunter.io/ios/app/cipher-authenticator/id6755045757)

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

**In-app purchases:** none


## Frequently asked questions

### Is Todo free?

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

### Is Cipher Authenticator free?

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

### Do Todo or Cipher Authenticator have ads?

Neither Todo nor Cipher Authenticator shows ads.

### Which is updated more often, Todo or Cipher Authenticator?

Todo ships an update every 2 weeks, and Cipher Authenticator every 4 months. Most recently, Todo was updated on May 19, 2026 and Cipher Authenticator on September 9, 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.*