# TaskBlocks vs Atomic Calendar

The clearest difference is iOS requirement: Atomic Calendar at 15.0 against TaskBlocks's 17.0. 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.

TaskBlocks ships an update fortnightly, Atomic Calendar every 3 weeks. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | TaskBlocks | Atomic Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 1 MB | 64 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [songeun Lee](https://appshunter.io/developer/1701388070) | [Brandon Guigo](https://appshunter.io/developer/1772643694) |

## What reviewers say

### TaskBlocks

[App page](https://appshunter.io/ios/app/taskblocks/id6751321559)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atomic Calendar

[App page](https://appshunter.io/ios/app/atomic-calendar/id6757757656)

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

**In-app purchases:** none


## Frequently asked questions

### Is TaskBlocks free?

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

### Is Atomic Calendar free?

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

### Do TaskBlocks or Atomic Calendar have ads?

Neither TaskBlocks nor Atomic Calendar shows ads.

### Which is updated more often, TaskBlocks or Atomic Calendar?

TaskBlocks ships an update fortnightly, and Atomic Calendar every 3 weeks. Most recently, TaskBlocks was updated on October 16, 2026 and Atomic Calendar on October 15, 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.*