# Dagny vs Overview by Rotamap

The clearest difference is update cadence: Dagny at every 6 weeks against Overview by Rotamap's every 3 months. Dagny also leads on iOS requirement (14.0 vs 18.0). On price, ads, 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.

Dagny ships an update every 6 weeks, Overview by Rotamap every 3 months. The most recent releases landed on September 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Dagny | Overview by Rotamap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Size | 30 MB | 24 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dagny Ltd](https://appshunter.io/developer/1741301606) | [Rotamap Ltd](https://appshunter.io/developer/411435066) |

## What reviewers say

### Dagny

[App page](https://appshunter.io/ios/app/dagny/id1234948130)

**Features:** macOS Compatibility

**In-app purchases:** none


### Overview by Rotamap

[App page](https://appshunter.io/ios/app/overview-by-rotamap/id1567234852)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dagny free?

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

### Is Overview by Rotamap free?

Overview by Rotamap is free to download, with no in-app purchases.

### Do Dagny or Overview by Rotamap have ads?

Neither Dagny nor Overview by Rotamap shows ads.

### Which is updated more often, Dagny or Overview by Rotamap?

Dagny ships an update every 6 weeks, and Overview by Rotamap every 3 months. Most recently, Dagny was updated on September 17, 2026 and Overview by Rotamap on October 25, 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.*