# Rubí vs caslab Pay

The clearest difference is update cadence: caslab Pay at every 2 months against Rubí's every 6 months. Rubí's advantage is iOS requirement (13.0 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.

Rubí ships an update every 6 months, caslab Pay every 2 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Rubí | caslab Pay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 7 MB | 68 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Avanza Spain, S.A.](https://appshunter.io/developer/1458006357) | [PAYMENT CONTROL SYSTEMS SOCIEDAD LIMITADA](https://appshunter.io/developer/1559705723) |

## What reviewers say

### Rubí

[App page](https://appshunter.io/ios/app/rubi-bus/id1342129103)

**In-app purchases:** none


### caslab Pay

[App page](https://appshunter.io/ios/app/caslab-pay/id1615398396)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rubí free?

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

### Is caslab Pay free?

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

### Do Rubí or caslab Pay have ads?

Neither Rubí nor caslab Pay shows ads.

### Which is updated more often, Rubí or caslab Pay?

Rubí ships an update every 6 months, and caslab Pay every 2 months. Most recently, Rubí was updated on October 15, 2026 and caslab Pay on October 24, 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.*