# SRM X vs MD Binary

The clearest difference is update cadence: MD Binary at every 4 days against SRM X's every 3 months. SRM X's advantage is iOS requirement (12.3 vs 14.0). 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.

SRM X ships an update every 3 months, MD Binary every 4 days. The most recent releases landed on September 14, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | SRM X | MD Binary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/srm-x-power/id1495985994/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 17 MB | 11 MB |
| Requires iOS | **12.3** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ulrich Schoberer](https://appshunter.io/developer/1051801775) | [Marco Sbragi](https://appshunter.io/developer/1056694879) |

## What reviewers say

### SRM X

[App page](https://appshunter.io/ios/app/srm-x-power/id1495985994)

This app configures and monitors pedal power meters for cycling disciplines like MTB, Gravel, and Cyclocross. It offers an easy installation wizard, real-time data viewing, and firmware upgrades. The app also integrates with health platforms to store cycling metrics.

**Highlights:** Pedal status and configuration, Easy installation wizard, Real-time data view, Firmware upgrades, Health app integration

**Features:** macOS Compatibility

**In-app purchases:** none


### MD Binary

[App page](https://appshunter.io/ios/app/md-binary/id6448985246)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SRM X free?

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

### Is MD Binary free?

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

### Do SRM X or MD Binary have ads?

Neither SRM X nor MD Binary shows ads.

### Which is updated more often, SRM X or MD Binary?

SRM X ships an update every 3 months, and MD Binary every 4 days. Most recently, SRM X was updated on September 14, 2026 and MD Binary on June 8, 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.*