# SRM PM9 — SRM PowerMeter9 Mobile Agent

> Cyclist power meter agent with advanced accuracy and magnet-less cadence. (iPhone/iPad app by Ulrich Schoberer.)

- Source: https://appshunter.io/ios/app/srm-pm9/id1568305482 (this page in markdown: same URL + `.md`)
- Developer: [Ulrich Schoberer](https://appshunter.io/developer/1051801775)
- Category: Sports, Health & Fitness
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 15.1 · 26 MB
- Languages: American English
- Released: 2021-09-15
- Data updated: 2026-06-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/srm-pm9/id1568305482/reviews.md

## What is SRM PM9?

Our 9th generation Spider PowerMeter takes our proven formula and updates it with modern features. The result is a PowerMeter that is easier to use, even more accurate, better to repair and has improved connectivity.
Thanks to a combination of angle and torque measurement, the PM9 is now able to measure with higher accuracy in very low cadence situations and not round chainrings do no longer have an impact on the recorded data. The integrated temperature sensor allows for maximum accuracy in changing conditions. Users are now able to show L&R balance, as well as combined Pedal smoothness.
PowerMeter 9 comes with many usability improvements. First of all is the Magnet-less cadence mode, which allows you to use the PowerMeter without any cadence magnet. 
PowerMeter 9 can be used with ANT+ and Bluetooth LE. It connects to pretty much any head unit and comes with a mobile App. The App gives you access to live torque data, battery status information, firmware updates and much more.

Features:
•   Magnet-less cadence 
•   Left / Right Balance 
•   Combined Pedal smoothness 
•   Not round chainrings compatible 
•   Automatic temperature compensation with sensor 
•   Rechargeable via magnetic charger 
•   100 h battery runtime between charges 
•   Compatible with Head-Units using ANT+™ and Bluetooth® 
•   Zwift™ compatible

## Key features

- Magnet-less cadence
- Left/Right balance measurement
- Pedal smoothness analysis
- Automatic temperature compensation
- ANT+ and Bluetooth LE connectivity
- Rechargeable battery
- Zwift compatible


## Frequently asked questions about SRM PM9

### What is SRM PM9?

SRM PM9 is a mobile agent app designed to work with the 9th generation Spider PowerMeter. It provides cyclists with advanced data like left/right balance and pedal smoothness, enhancing training accuracy.

### Does SRM PM9 have ads?

No, SRM PM9 is ad-free, allowing for an uninterrupted user experience focused on performance data.

### What devices is SRM PM9 compatible with?

SRM PM9 is compatible with iPhones and iPods. It connects to head units using ANT+ and Bluetooth LE.

### How accurate is SRM PM9?

SRM PM9 offers high accuracy, especially in low cadence situations and with non-round chainrings, due to its angle and torque measurement. An integrated temperature sensor further optimizes accuracy in changing conditions.

### What are the key features of SRM PM9?

Key features include magnet-less cadence, left/right balance, combined pedal smoothness, automatic temperature compensation, and 100 hours of battery runtime.

### Can SRM PM9 be used with Zwift?

Yes, SRM PM9 is compatible with Zwift, allowing cyclists to integrate their power meter data into the popular virtual training platform.

### How often is SRM PM9 updated?

The latest version of SRM PM9 is 1.2.1, last updated on 2025-10-19. Users can receive firmware updates through the app.

### What is the user sentiment for SRM PM9?

SRM PM9 has received excellent user feedback, with a rating of 5.0 stars from 2 ratings, indicating high user satisfaction.

## Version history (last 5 releases)

### 1.2.1 — 2025-10-19

Removed references to old libraries

### 1.2.0 — 2025-09-19

- Updated all libraries to latest version
- Fixed Fixed minor bugs

### 1.1.0 — 2024-05-07

- Fixed crash when app try to read not available characteristics
- Fixed crash on DFU procedure
- Embedded new FW version 1.5.0

### 1.0.9 — 2024-03-04

- Improved reading of manufacturer data
- Improved synchronisation of PM9 RTC with the phone
- Fixed realtime torque chart notification

### 1.0.8 — 2023-05-26

Improved DFU procedure

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## More apps by Ulrich Schoberer

- [SRM eIT](https://appshunter.io/ios/app/srm-eit/id1051801776)
- [EXAKT Power](https://appshunter.io/ios/app/exakt-power/id1376028370)
- [PC8DAm](https://appshunter.io/ios/app/pc8dam/id1446034481)
- [PM8DAm](https://appshunter.io/ios/app/pm8dam/id1473401395)
- [SRM SmartIT](https://appshunter.io/ios/app/srm-smartit/id1476030772)
- [SRM X-Power](https://appshunter.io/ios/app/srm-x-power/id1495985994)

All apps by Ulrich Schoberer: https://appshunter.io/developer/1051801775

## Related topics

[ulrich schoberer](https://appshunter.io/ios/topics/ulrich-schoberer) · [srm pm9](https://appshunter.io/ios/topics/srm-pm9) · [srm 360](https://appshunter.io/ios/topics/srm-360) · [9pm](https://appshunter.io/ios/topics/9pm)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*