# Installation Instructions vs Spareage

The clearest difference is in-app purchases: Installation Instructions at none against Spareage's 2. Installation Instructions also leads on iOS requirement (10.0 vs 13.0). Spareage's advantage is update cadence (every 3 weeks vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. Spareage sells 2 one-off in-app purchases. Installation Instructions asks for nothing beyond the download.

Installation Instructions ships an update every 11 months, Spareage every 3 weeks. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Installation Instructions | Spareage |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 12 MB | 29 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Spareage Sealing Solutions LLP](https://appshunter.io/developer/1423899911) |

## 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


### Spareage

[App page](https://appshunter.io/ios/app/spareage/id1423899914)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spareage Pro Membership | $89.99 | one-time |
| Spareage Pro Membership | $99.99 | one-time |


## Frequently asked questions

### Is Installation Instructions free?

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

### Is Spareage free?

Spareage is free to download, with in-app purchases available.

### Do Installation Instructions or Spareage have ads?

Neither Installation Instructions nor Spareage shows ads.

### Which is updated more often, Installation Instructions or Spareage?

Installation Instructions ships an update every 11 months, and Spareage every 3 weeks. Most recently, Installation Instructions was updated on September 30, 2026 and Spareage on October 1, 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.*