# Sika SandApp vs RMX

The clearest difference is update cadence: Sika SandApp at every 3 months against RMX's every 10 months. RMX's advantage is iOS requirement (14.0 vs 17.0). 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.

Sika SandApp ships an update every 3 months, RMX every 10 months. The most recent releases landed on September 28, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Sika SandApp | RMX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 10 months |
| Size | 44 MB | 50 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sika Informationssysteme AG](https://appshunter.io/developer/1487602064) | [Freewill Solutions Co.,Ltd.](https://appshunter.io/developer/902937447) |

## What reviewers say

### Sika SandApp

[App page](https://appshunter.io/ios/app/sika-sandapp/id6463419232)

**Features:** macOS Compatibility

**In-app purchases:** none


### RMX

[App page](https://appshunter.io/ios/app/rmx-e-mobile/id6476528854)

**In-app purchases:** none


## Frequently asked questions

### Is Sika SandApp free?

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

### Is RMX free?

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

### Do Sika SandApp or RMX have ads?

Neither Sika SandApp nor RMX shows ads.

### Which is updated more often, Sika SandApp or RMX?

Sika SandApp ships an update every 3 months, and RMX every 10 months. Most recently, Sika SandApp was updated on September 28, 2026 and RMX on October 16, 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.*