# SEMG vs Performance Elite Cast

The clearest difference is update cadence: SEMG at every 2 months against Performance Elite Cast's every 6 months. Performance Elite Cast'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.

SEMG ships an update every 2 months, Performance Elite Cast every 6 months. The most recent releases landed on September 19, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | SEMG | Performance Elite Cast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 70 MB | 54 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPad | iPad |
| Age rating | 12+ | 12+ |
| Developer | [Shenzhen XFT Medical Limited](https://appshunter.io/developer/645422367) | [Ruthless Research, LLC](https://appshunter.io/developer/1458693702) |

## What reviewers say

### SEMG

[App page](https://appshunter.io/ios/app/semg-2003e/id1188917318)

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

**In-app purchases:** none


### Performance Elite Cast

[App page](https://appshunter.io/ios/app/performance-elite-cast/id1627113998)

**In-app purchases:** none


## Frequently asked questions

### Is SEMG free?

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

### Is Performance Elite Cast free?

Performance Elite Cast is free to download, with no in-app purchases.

### Do SEMG or Performance Elite Cast have ads?

Neither SEMG nor Performance Elite Cast shows ads.

### Which is updated more often, SEMG or Performance Elite Cast?

SEMG ships an update every 2 months, and Performance Elite Cast every 6 months. Most recently, SEMG was updated on September 19, 2026 and Performance Elite Cast on May 19, 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.*