# Dremel vs Coach OS Pro

The clearest difference is in-app purchases: Dremel at none against Coach OS Pro's 2. Coach OS Pro's advantage is update cadence (daily vs every 2 months) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Coach OS Pro sells 2 in-app purchases, starting at $24.99 per month. Dremel asks for nothing beyond the download.

Dremel ships an update every 2 months, Coach OS Pro daily. The most recent releases landed on September 25, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Dremel | Coach OS Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (19 ratings)](https://appshunter.io/ios/app/dremel/id1577928986/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | — |
| Size | 193 MB | 57 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Bosch US](https://appshunter.io/developer/1200374538) | [AHMED KHALIL EL BASRI](https://appshunter.io/developer/1883062163) |

## What reviewers say

### Dremel

[App page](https://appshunter.io/ios/app/dremel/id1577928986)

This app connects to a smart rotary tool to provide usage insights, performance alerts, and speed recommendations. It helps users find the right accessories and settings for their projects, monitor tool battery life, and manage tool health.

**Highlights:** Bluetooth pairing with smart rotary tool, Accessory and speed recommendations, Tool dashboard with battery and usage time, Performance alerts and preventative tips, Accessory guides for various Dremel tools, Material guide for rotary tool accessories

**Features:** macOS Compatibility

**In-app purchases:** none


### Coach OS Pro

[App page](https://appshunter.io/ios/app/coach-os-pro/id6760189821)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $24.99 | per month |
| Coach OS Pro Premium | $199.99 | per year |


## Frequently asked questions

### Is Dremel free?

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

### Is Coach OS Pro free?

Coach OS Pro is free to download, with in-app purchases available.

### Do Dremel or Coach OS Pro have ads?

Neither Dremel nor Coach OS Pro shows ads.

### Which is updated more often, Dremel or Coach OS Pro?

Dremel ships an update every 2 months, and Coach OS Pro daily. Most recently, Dremel was updated on September 25, 2026 and Coach OS Pro on September 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.*