# All in One Calculator vs Todo

The clearest difference is price: Todo at Free against All in One Calculator's $1.99. Todo also leads on update cadence (every 2 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Todo is free to download; All in One Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

All in One Calculator ships an update every 3 months, Todo every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | All in One Calculator | Todo |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 139 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Juan Antonio Veloz Gutierrez](https://appshunter.io/developer/1810351183) | [Solid enterprise s.r.o.](https://appshunter.io/developer/1833248770) |

## What reviewers say

### All in One Calculator

[App page](https://appshunter.io/ios/app/all-in-one-calculator-math/id6745767970)

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

**In-app purchases:** none


### Todo

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is All in One Calculator free?

All in One Calculator costs $1.99, with no in-app purchases.

### Is Todo free?

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

### Do All in One Calculator or Todo have ads?

Neither All in One Calculator nor Todo shows ads.

### Which is updated more often, All in One Calculator or Todo?

All in One Calculator ships an update every 3 months, and Todo every 2 weeks. Most recently, All in One Calculator was updated on October 30, 2026 and Todo on October 28, 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.*