# MCSAID vs ROTEM

The clearest difference is price: MCSAID at Free against ROTEM's $2.99. MCSAID also leads on iOS requirement (15.0 vs 18.0). ROTEM's advantage is update cadence (monthly vs every 40 months). On ads, in-app purchases and device support there is nothing between them.

MCSAID is free to download; ROTEM costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MCSAID ships an update every 40 months, ROTEM monthly. The most recent releases landed on September 12, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | MCSAID | ROTEM |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Monthly** |
| Size | 46 MB | 4 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) | [Carlos Sarta](https://appshunter.io/developer/6779777264) |

## What reviewers say

### MCSAID

[App page](https://appshunter.io/ios/app/mcsaid/id6443740248)

**Features:** macOS Compatibility

**In-app purchases:** none


### ROTEM

[App page](https://appshunter.io/ios/app/rotem/id6789744103)

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

**In-app purchases:** none


## Frequently asked questions

### Is MCSAID free?

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

### Is ROTEM free?

ROTEM costs $2.99, with no in-app purchases.

### Do MCSAID or ROTEM have ads?

Neither MCSAID nor ROTEM shows ads.

### Which is updated more often, MCSAID or ROTEM?

MCSAID ships an update every 40 months, and ROTEM monthly. Most recently, MCSAID was updated on September 12, 2026 and ROTEM on October 12, 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.*