# Installation Instructions vs PTS Mobile

The clearest difference is update cadence: PTS Mobile at monthly against Installation Instructions's every 11 months. PTS Mobile also leads on ratings volume (9 vs 2). Installation Instructions's advantage is rating (5.0 vs 4.6) and iOS requirement (10.0 vs 15.0). 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.

Installation Instructions holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 9 respectively.

Installation Instructions ships an update every 11 months, PTS Mobile monthly. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Installation Instructions | PTS Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/installation-instructions/id720681644/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/pts-mobile/id1250926872/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Size | 12 MB | 83 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Parker Hannifin Corporation](https://appshunter.io/developer/491113305) |

## What reviewers say

### Installation Instructions

[App page](https://appshunter.io/ios/app/installation-instructions/id720681644)

This app provides visual guidance for the correct installation of various seals. It uses film, animation, and documentation to simulate expert installation, covering hydraulic, radial, and mechanical face seals, along with visual inspection and common mistakes.

**Highlights:** Hydraulic seal installation (rod/piston), Radial oil seal installation, Mechanical face seal installation, Visual inspection guidance, Common installation mistakes, Use of assembly tools

**Features:** macOS Compatibility

**In-app purchases:** none


### PTS Mobile

[App page](https://appshunter.io/ios/app/pts-mobile/id1250926872)

This app helps users quickly and accurately find replacement hose assemblies and components. It connects users to local distributors using a unique tracking system for efficient service.

**Highlights:** Component tracking, Replacement hose assembly lookup, Connects to local distributors, Accurate component identification, Fast service

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Installation Instructions free?

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

### Is PTS Mobile free?

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

### Which has better reviews, Installation Instructions or PTS Mobile?

Installation Instructions is rated higher. Installation Instructions averages 5.0 out of 5 from 2 ratings, while PTS Mobile averages 4.6 from 9 ratings.

### Do Installation Instructions or PTS Mobile have ads?

Neither Installation Instructions nor PTS Mobile shows ads.

### Which is updated more often, Installation Instructions or PTS Mobile?

Installation Instructions ships an update every 11 months, and PTS Mobile monthly. Most recently, Installation Instructions was updated on October 18, 2026 and PTS Mobile on October 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.*