# CPM vs Workshop Service Assist

The clearest difference is review sentiment: Workshop Service Assist at 100% against CPM's 64%. CPM's advantage is update cadence (every 4 days vs monthly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CPM ships an update every 4 days, Workshop Service Assist monthly. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | CPM | Workshop Service Assist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/cpm-app/id1076636609/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 64.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Free | Free |
| Size | 106 MB | 231 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Car Professional Fuhrparkmanagement und](https://appshunter.io/developer/1076636608) | [Robert Bosch GmbH](https://appshunter.io/developer/397121518) |

## What reviewers say

### CPM

[App page](https://appshunter.io/ios/app/cpm-app/id1076636609)

Manage your rented vehicles on the go with this app. Access vehicle data, find service partners, and handle accident procedures. Submit documents, track activities, and report expenses and mileage easily.

**Highlights:** Vehicle data overview, Service partner navigation, Accident first aid information, Document transmission, Activity timeline, Expense reimbursement, Mileage reporting

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

**In-app purchases:** none


### Workshop Service Assist

[App page](https://appshunter.io/ios/app/workshop-service-assist/id1624014067)

Access Bosch Mobility Aftermarket workshop services, including remote diagnostics, training, and technical support. Features augmented reality sessions for expert guidance and free tools for vehicle data retrieval, optimizing automotive service efficiency.

**Highlights:** Remote Diagnostics, Training Solutions, Technical Car Repair Support, Augmented Reality Expert Sessions, Free Vehicle Data Tools, Digital Service Optimization

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

**In-app purchases:** none


## Frequently asked questions

### Is CPM free?

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

### Is Workshop Service Assist free?

Workshop Service Assist is free to download, with no in-app purchases.

### Do CPM or Workshop Service Assist have ads?

Neither CPM nor Workshop Service Assist shows ads.

### Which is updated more often, CPM or Workshop Service Assist?

CPM ships an update every 4 days, and Workshop Service Assist monthly. Most recently, CPM was updated on October 26, 2026 and Workshop Service Assist on October 22, 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.*