# EngineCalc vs Mounting Manager

The clearest difference is price: Mounting Manager at Free against EngineCalc's $0.99. EngineCalc's advantage is rating (2.3 vs 1.0) and ratings volume (3 vs 1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Mounting Manager is free to download; EngineCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EngineCalc holds the better App Store score, 2.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

EngineCalc ships an update every 2 months, Mounting Manager every 3 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | EngineCalc | Mounting Manager |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/enginecalc/id378824382/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/mounting-manager/id1596759700/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 8 MB | 103 MB |
| Requires iOS | **6.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iTrinity, Inc.](https://appshunter.io/developer/547108075) | [Schaeffler Technologies GmbH & Co. KG](https://appshunter.io/developer/426470435) |

## What reviewers say

### EngineCalc

[App page](https://appshunter.io/ios/app/enginecalc/id378824382)

This utility app provides a collection of essential formulas and calculators for powersports and engine tuning. It allows users to perform complex calculations directly on their iPhone, eliminating the need for a laptop or desktop computer.

**Highlights:** Powersports formulas, Engine tuning calculators, Actual Volume Flow, Air Density, Compression Ratio, Cylinder Displacement, Volumetric Efficiency

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

**In-app purchases:** none


### Mounting Manager

[App page](https://appshunter.io/ios/app/mounting-manager/id1596759700)

This app helps users select the correct bearing installation by providing mechanical and hydraulic procedures, calculating necessary parameters, and offering installation tips. It also generates a list of required tools and accessories for a smooth installation process.

**Highlights:** Bearing installation procedures, Mechanical and hydraulic methods, Installation parameter calculation, Installation hints and tips, Accessory and tool list generation

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

**In-app purchases:** none


## Frequently asked questions

### Is EngineCalc free?

EngineCalc costs $0.99, with no in-app purchases.

### Is Mounting Manager free?

Mounting Manager is free to download, with no in-app purchases.

### Which has better reviews, EngineCalc or Mounting Manager?

EngineCalc is rated higher. EngineCalc averages 2.3 out of 5 from 3 ratings, while Mounting Manager averages 1.0 from 1 ratings.

### Do EngineCalc or Mounting Manager have ads?

Neither EngineCalc nor Mounting Manager shows ads.

### Which is updated more often, EngineCalc or Mounting Manager?

EngineCalc ships an update every 2 months, and Mounting Manager every 3 months. Most recently, EngineCalc was updated on September 21, 2026 and Mounting Manager on September 21, 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.*