# USM Service App

> USM Service App (iPhone/iPad app by USM U. Schaerer Soehne AG.)

- Source: https://appshunter.io/ios/app/usm-service-app/id6505143777 (this page in markdown: same URL + `.md`)
- Developer: [USM U. Schaerer Soehne AG](https://appshunter.io/developer/395765701)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 7 MB
- Languages: English
- Released: 2024-07-31
- Data updated: 2026-07-06
- User reviews in markdown: https://appshunter.io/ios/app/usm-service-app/id6505143777/reviews.md

## What is USM Service App?

An account in the USM lock C app is required to use this app. Actions within this app can only be carried out after authorisation, which can be requested within the app for the desired locks.

If necessary, a lock C can be reset to the factory settings if the assigned Main Admin card is no longer available. 

It is also possible to request detailed log files, which requires authorisation. These log files allow every action of the lock to be reflected, retraced and assigned to a specific time. 

If a lock C requires a firmware update, this can be carried out in both the USM Service app and USM lock C app. 

This app is not used to operate the lock C. It only enables services outside the normal scope of action and is designed for use by authorised people.


## Version history (last 2 releases)

### 1.0.6 — 2025-07-01

Bug fixes and performance improvements

### 1.0.5 — 2025-06-11

Bug fixes and performance improvements

## More apps by USM U. Schaerer Soehne AG

- [USM lock C](https://appshunter.io/ios/app/usm-lock-c/id6467190717)

All apps by USM U. Schaerer Soehne AG: https://appshunter.io/developer/395765701

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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 2026-07-06.*