# Shim Selector vs PTS Ecosystem

The clearest difference is update cadence: PTS Ecosystem at every 3 weeks against Shim Selector's every 7 months. PTS Ecosystem also leads on rating (5.0 vs 4.8) and iOS requirement (13.1 vs 16.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

PTS Ecosystem holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

Shim Selector ships an update every 7 months, PTS Ecosystem every 3 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Shim Selector | PTS Ecosystem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5 ratings)](https://appshunter.io/ios/app/shim-selector/id718147152/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pts-ecosystem/id1531366353/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 15 MB | 109 MB |
| Requires iOS | 16.6 | **13.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Regal Rexnord Corporation](https://appshunter.io/developer/571732561) |

## What reviewers say

### Shim Selector

[App page](https://appshunter.io/ios/app/shim-selector/id718147152)

This tool helps engineers find optimal shim materials for brake NVH issues. It features an FFT analyzer for precise results and an advanced search to filter materials by various properties. Users can easily request material samples for testing.

**Highlights:** FFT analyzer for peak dB and frequency, Advanced search and filtering, Material selection based on adhesive, steel, and thickness, Request dynamometer test samples, Access to Trelleborg's material expertise

**Features:** macOS Compatibility

**In-app purchases:** none


### PTS Ecosystem

[App page](https://appshunter.io/ios/app/pts-ecosystem/id1531366353)

This application helps businesses capture and manage equipment information. It serves as a centralized platform for asset data, streamlining operations and improving equipment oversight.

**Highlights:** Equipment information capture, Asset data management, Centralized platform, Streamlined operations, Improved equipment oversight

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shim Selector free?

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

### Is PTS Ecosystem free?

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

### Which has better reviews, Shim Selector or PTS Ecosystem?

PTS Ecosystem is rated higher. Shim Selector averages 4.8 out of 5 from 5 ratings, while PTS Ecosystem averages 5.0 from 3 ratings.

### Do Shim Selector or PTS Ecosystem have ads?

Neither Shim Selector nor PTS Ecosystem shows ads.

### Which is updated more often, Shim Selector or PTS Ecosystem?

Shim Selector ships an update every 7 months, and PTS Ecosystem every 3 weeks. Most recently, Shim Selector was updated on October 24, 2026 and PTS Ecosystem on October 16, 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.*