# DueView vs Atomic Calendar

The clearest difference is in-app purchases: Atomic Calendar at none against DueView's 1. Atomic Calendar also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. DueView sells 1 one-off in-app purchase. Atomic Calendar asks for nothing beyond the download.

DueView ships an update every 6 weeks, Atomic Calendar every 3 weeks. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DueView | Atomic Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 4 MB | 64 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JudeWorks](https://appshunter.io/developer/1749456254) | [Brandon Guigo](https://appshunter.io/developer/1772643694) |

## What reviewers say

### DueView

[App page](https://appshunter.io/ios/app/dueview-stats-for-reminders/id6744546366)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DueView Plus | $0.99 | one-time |


### 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 DueView free?

DueView is free to download, with in-app purchases available.

### Is Atomic Calendar free?

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

### Do DueView or Atomic Calendar have ads?

Neither DueView nor Atomic Calendar shows ads.

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

DueView ships an update every 6 weeks, and Atomic Calendar every 3 weeks. Most recently, DueView was updated on October 6, 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.*