# First Responder Solothurn vs IES

The clearest difference is update cadence: First Responder Solothurn at fortnightly against IES's every 2 months. IES's advantage is iOS requirement (12.0 vs 15.0). 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.

First Responder Solothurn ships an update fortnightly, IES every 2 months. The most recent releases landed on October 10, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | First Responder Solothurn | IES |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 90 MB | 521 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Solothurner Spitaler AG](https://appshunter.io/developer/1411885258) | [NTT DATA Business Solutions AG (Schweiz)](https://appshunter.io/developer/1465568823) |

## What reviewers say

### First Responder Solothurn

[App page](https://appshunter.io/ios/app/first-responder-solothurn/id1411885259)

**Features:** macOS Compatibility

**In-app purchases:** none


### IES

[App page](https://appshunter.io/ios/app/ies/id1465568824)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is First Responder Solothurn free?

First Responder Solothurn is free to download, with no in-app purchases.

### Is IES free?

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

### Do First Responder Solothurn or IES have ads?

Neither First Responder Solothurn nor IES shows ads.

### Which is updated more often, First Responder Solothurn or IES?

First Responder Solothurn ships an update fortnightly, and IES every 2 months. Most recently, First Responder Solothurn was updated on October 10, 2026 and IES on October 26, 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.*