# Atomic Calendar vs PlanLine

The clearest difference is ads: Atomic Calendar at none against PlanLine's shown. Atomic Calendar also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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.

Atomic Calendar ships an update every 3 weeks, PlanLine every 2 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Atomic Calendar | PlanLine |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 64 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brandon Guigo](https://appshunter.io/developer/1772643694) | [Hieu Doan](https://appshunter.io/developer/905220502) |

## What reviewers say

### Atomic Calendar

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

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

**In-app purchases:** none


### PlanLine

[App page](https://appshunter.io/ios/app/planline/id6759870469)

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

**In-app purchases:** none


## Frequently asked questions

### Is Atomic Calendar free?

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

### Is PlanLine free?

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

### Do Atomic Calendar or PlanLine have ads?

PlanLine shows ads; Atomic Calendar does not.

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

Atomic Calendar ships an update every 3 weeks, and PlanLine every 2 weeks. Most recently, Atomic Calendar was updated on October 15, 2026 and PlanLine on October 14, 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.*