# Optim System app vs iSwiss Pay

The clearest difference is update cadence: Optim System app at every 9 days against iSwiss Pay's every 5 weeks. 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 9 days, iSwiss Pay every 5 weeks. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Optim System app | iSwiss Pay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Size | 44 MB | 81 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Optim Systems, Ltd.](https://appshunter.io/developer/1713704866) | [iSwiss Pay Limited](https://appshunter.io/developer/1850454030) |

## 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


### iSwiss Pay

[App page](https://appshunter.io/ios/app/iswiss-pay/id6754843260)

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

**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 iSwiss Pay free?

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

### Do Optim System app or iSwiss Pay have ads?

Neither Optim System app nor iSwiss Pay shows ads.

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

Optim System app ships an update every 9 days, and iSwiss Pay every 5 weeks. Most recently, Optim System app was updated on October 21, 2026 and iSwiss Pay on October 17, 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.*