# Installation Instructions vs Max Spare

The clearest difference is update cadence: Max Spare at every 5 months against Installation Instructions's every 11 months. Installation Instructions's advantage is iOS requirement (10.0 vs 14.0.0). On price, ads, in-app purchases and device support 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 ships an update every 11 months, Max Spare every 5 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Installation Instructions | Max Spare |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/installation-instructions/id720681644/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 12 MB | 25 MB |
| Requires iOS | **10.0** | 14.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Max Spare Limited](https://appshunter.io/developer/1701559700) |

## 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


### Max Spare

[App page](https://appshunter.io/ios/app/max-spare/id6462151656)

**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 Max Spare free?

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

### Do Installation Instructions or Max Spare have ads?

Neither Installation Instructions nor Max Spare shows ads.

### Which is updated more often, Installation Instructions or Max Spare?

Installation Instructions ships an update every 11 months, and Max Spare every 5 months. Most recently, Installation Instructions was updated on September 21, 2026 and Max Spare 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.*