# Optim System app vs Foxi

The clearest difference is update cadence: Optim System app at every 10 days against Foxi's every 6 weeks. Foxi's advantage is iOS requirement (13.4 vs 15.1). 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.

Optim System app ships an update every 10 days, Foxi every 6 weeks. The most recent releases landed on September 17, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Optim System app | Foxi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Size | 44 MB | 25 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Optim Systems, Ltd.](https://appshunter.io/developer/1713704866) | [MSE Merchant Services Ireland Ltd](https://appshunter.io/developer/1753370677) |

## What reviewers say

### Optim System app

[App page](https://appshunter.io/ios/app/optim-system-app-weopsy/id6470450913)

**Features:** macOS Compatibility

**In-app purchases:** none


### Foxi

[App page](https://appshunter.io/ios/app/foxi-pay/id6504695677)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Optim System app free?

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

### Is Foxi free?

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

### Do Optim System app or Foxi have ads?

Neither Optim System app nor Foxi shows ads.

### Which is updated more often, Optim System app or Foxi?

Optim System app ships an update every 10 days, and Foxi every 6 weeks. Most recently, Optim System app was updated on September 17, 2026 and Foxi on June 11, 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.*