# KBS Mobile vs RataOptima

The clearest difference is in-app purchases: KBS Mobile at none against RataOptima's 3. RataOptima's advantage is update cadence (every 2 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. RataOptima sells 3 in-app purchases, starting at $1.99 per month. KBS Mobile asks for nothing beyond the download.

KBS Mobile ships an update every 2 months, RataOptima every 2 days. Both last shipped on October 11, 2026.

## The numbers

| Metric | KBS Mobile | RataOptima |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 65 MB | 9 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Krakowski Bank Spoldzielczy](https://appshunter.io/developer/881573136) | [Micha Hermaski](https://appshunter.io/developer/1841055603) |

## What reviewers say

### KBS Mobile

[App page](https://appshunter.io/ios/app/kbs-mobile/id6747878312)

**Features:** macOS Compatibility

**In-app purchases:** none


### RataOptima

[App page](https://appshunter.io/ios/app/rataoptima/id6755742220)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Quarterly | $5.99 | per 3 months |
| Yearly | $17.99 | per year |


## Frequently asked questions

### Is KBS Mobile free?

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

### Is RataOptima free?

RataOptima is free to download, with in-app purchases available.

### Do KBS Mobile or RataOptima have ads?

Neither KBS Mobile nor RataOptima shows ads.

### Which is updated more often, KBS Mobile or RataOptima?

KBS Mobile ships an update every 2 months, and RataOptima every 2 days. Most recently, KBS Mobile was updated on October 11, 2026 and RataOptima on October 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.*