# OpenRadiation vs OpenRank

The clearest difference is update cadence: OpenRank at every 5 days against OpenRadiation's every 3 months. OpenRadiation's advantage is iOS requirement (15.0 vs 17.0). 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.

OpenRadiation ships an update every 3 months, OpenRank every 5 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OpenRadiation | OpenRank |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/openradiation/id1246249831/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 57 MB | 41 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ASNR](https://appshunter.io/developer/1861431469) | [Guillaume LELEU](https://appshunter.io/developer/6776354778) |

## What reviewers say

### OpenRadiation

[App page](https://appshunter.io/ios/app/openradiation/id1246249831)

Measure ambient radioactivity levels and assess your exposure to ionizing radiation using a compatible sensor. Contribute to a citizen science project by sharing your measurements to build a collaborative database.

**Highlights:** Measure radioactivity levels, Assess radiation exposure, Contribute to citizen science, Collaborative data database, Share measurements, View data online

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

**In-app purchases:** none


### OpenRank

[App page](https://appshunter.io/ios/app/openrank-gps-telemetry/id6776354776)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenRadiation free?

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

### Is OpenRank free?

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

### Do OpenRadiation or OpenRank have ads?

Neither OpenRadiation nor OpenRank shows ads.

### Which is updated more often, OpenRadiation or OpenRank?

OpenRadiation ships an update every 3 months, and OpenRank every 5 days. Most recently, OpenRadiation was updated on October 24, 2026 and OpenRank on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*