# Circle timer vs ToDoStacker

The clearest difference is price: ToDoStacker at Free against Circle timer's $0.99. Circle timer's advantage is iOS requirement (14.4 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

ToDoStacker is free to download; Circle timer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Circle timer | ToDoStacker |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **14.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [hideo nakamura](https://appshunter.io/developer/1242808811) | [yaseen khalaf](https://appshunter.io/developer/1723580642) |

## What reviewers say

### Circle timer

[App page](https://appshunter.io/ios/app/circle-timer-pie-chart-timer/id6686403808)

**In-app purchases:** none


### ToDoStacker

[App page](https://appshunter.io/ios/app/todostacker-smart-to-do-list/id6743932993)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circle timer free?

Circle timer costs $0.99, with no in-app purchases.

### Is ToDoStacker free?

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

### Do Circle timer or ToDoStacker have ads?

Neither Circle timer nor ToDoStacker shows ads.

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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.*