# DGen vs Atomic Calendar

The clearest difference is in-app purchases: Atomic Calendar at none against DGen's 1. Atomic Calendar also leads on ads (none vs shown) and update cadence (every 9 days vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. DGen sells 1 in-app purchase, starting at $4.99 per month. Atomic Calendar asks for nothing beyond the download.

DGen ships an update every 6 months, Atomic Calendar every 9 days. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | DGen | Atomic Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 9 days** |
| Size | 42 MB | 69 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Murshid Abu madi](https://appshunter.io/developer/1842810827) | [Brandon Guigo](https://appshunter.io/developer/1772643694) |

## What reviewers say

### DGen

[App page](https://appshunter.io/ios/app/dgen-worktimetracker/id6753167442)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |


### 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 DGen free?

DGen 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 DGen or Atomic Calendar have ads?

DGen shows ads; Atomic Calendar does not.

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

DGen ships an update every 6 months, and Atomic Calendar every 9 days. Most recently, DGen was updated on October 28, 2026 and Atomic Calendar on November 5, 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.*