# clock4all vs Redo Calculator

The clearest difference is price: Redo Calculator at Free against clock4all's $0.99. Redo Calculator also leads on update cadence (every 2 months vs every 7 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Redo Calculator is free to download; clock4all costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

clock4all ships an update every 7 months, Redo Calculator every 2 months. The most recent releases landed on September 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | clock4all | Redo Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 8 MB | 20 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Juergen Held](https://appshunter.io/developer/1435726758) | [Seongmin Yim](https://appshunter.io/developer/1529542974) |

## What reviewers say

### clock4all

[App page](https://appshunter.io/ios/app/clock4all/id1477082034)

**Features:** macOS Compatibility

**In-app purchases:** none


### Redo Calculator

[App page](https://appshunter.io/ios/app/redo-calculator/id6753993375)

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

**In-app purchases:** none


## Frequently asked questions

### Is clock4all free?

clock4all costs $0.99, with no in-app purchases.

### Is Redo Calculator free?

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

### Do clock4all or Redo Calculator have ads?

Neither clock4all nor Redo Calculator shows ads.

### Which is updated more often, clock4all or Redo Calculator?

clock4all ships an update every 7 months, and Redo Calculator every 2 months. Most recently, clock4all was updated on September 12, 2026 and Redo Calculator on October 7, 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.*