# Steinemann Chatter Marks vs Smart Protractor & Angle Meter

The clearest difference is in-app purchases: Steinemann Chatter Marks at none against Smart Protractor & Angle Meter's 1. Steinemann Chatter Marks also leads on iOS requirement (14.2 vs 17.6). Smart Protractor & Angle Meter's advantage is update cadence (every 6 weeks vs every 16 months). On price, ads and device support there is nothing between them.

Both are free to download. Smart Protractor & Angle Meter sells 1 one-off in-app purchase. Steinemann Chatter Marks asks for nothing beyond the download.

Steinemann Chatter Marks ships an update every 16 months, Smart Protractor & Angle Meter every 6 weeks. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Steinemann Chatter Marks | Smart Protractor & Angle Meter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 33 MB | 7 MB |
| Requires iOS | **14.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Steinemann Technology AG](https://appshunter.io/developer/1257691844) | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) |

## What reviewers say

### Steinemann Chatter Marks

[App page](https://appshunter.io/ios/app/steinemann-chatter-marks/id1257691845)

This application analyzes chatter marks caused by sander vibrations. It identifies the root cause by calculating based on machine geometry and process data, displaying the results for efficient troubleshooting.

**Highlights:** Analyzes chatter marks, Identifies vibration causes, Uses machine geometry data, Incorporates process data, Displays calculation results, Supports Steinemann machines

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Protractor & Angle Meter

[App page](https://appshunter.io/ios/app/smart-protractor-and-angle-meter/id6760594071)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


## Frequently asked questions

### Is Steinemann Chatter Marks free?

Steinemann Chatter Marks is free to download, with no in-app purchases.

### Is Smart Protractor & Angle Meter free?

Smart Protractor & Angle Meter is free to download, with in-app purchases available.

### Do Steinemann Chatter Marks or Smart Protractor & Angle Meter have ads?

Neither Steinemann Chatter Marks nor Smart Protractor & Angle Meter shows ads.

### Which is updated more often, Steinemann Chatter Marks or Smart Protractor & Angle Meter?

Steinemann Chatter Marks ships an update every 16 months, and Smart Protractor & Angle Meter every 6 weeks. Most recently, Steinemann Chatter Marks was updated on October 16, 2026 and Smart Protractor & Angle Meter on October 14, 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.*