# Explore Auch vs OPSIS

The clearest difference is update cadence: Explore Auch at every 9 months against OPSIS's every 18 months. 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.

Explore Auch ships an update every 9 months, OPSIS every 18 months. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Explore Auch | OPSIS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 18 months |
| Size | 49 MB | 56 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [CA Grand Auch Cœur de Gascogne](https://appshunter.io/developer/1374224711) | [HDP Interactive](https://appshunter.io/developer/1604384572) |

## What reviewers say

### Explore Auch

[App page](https://appshunter.io/ios/app/explore-auch/id1374224712)

**Features:** macOS Compatibility

**In-app purchases:** none


### OPSIS

[App page](https://appshunter.io/ios/app/opsis/id1604384570)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Explore Auch free?

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

### Is OPSIS free?

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

### Do Explore Auch or OPSIS have ads?

Neither Explore Auch nor OPSIS shows ads.

### Which is updated more often, Explore Auch or OPSIS?

Explore Auch ships an update every 9 months, and OPSIS every 18 months. Most recently, Explore Auch was updated on September 13, 2026 and OPSIS on September 10, 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.*