# AutoTech

> Automotive calculator for mechanics and enthusiasts with 45+ formulas. (iPhone/iPad app by Steven Clarner.)

- Source: https://appshunter.io/ios/app/autotech/id410979934 (this page in markdown: same URL + `.md`)
- Developer: [Steven Clarner](https://appshunter.io/developer/410979939)
- Category: Utilities, Sports
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.6 · 2 MB
- Languages: American English
- Released: 2010-12-22
- Data updated: 2026-08-18
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/autotech/id410979934/reviews.md

## What is AutoTech?

AutoTech is an automotive calculator that offers the mechanic, technician or enthusiast quick computation of 45+ formulas in the areas of aerodynamics, chassis, drivetrain, engine, performance, suspension, and tires. Supports both U.S. and metric units.

## Key features

- 45+ automotive formulas
- Aerodynamics calculations
- Chassis calculations
- Drivetrain calculations
- Engine calculations
- Performance calculations
- Suspension calculations
- Tire calculations

## Chart rankings

- #190 in Top Paid · Utilities (US App Store)

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/autotech/id410979934/reviews.md

### 4/5 — It's limited

*2011-05-13*

It's a good basic app but it is vet limited I would like to see many more calculations in this app. I brought this as I'm currently doing a degree in Motorsport and would defiantly say it needs more calculators !!!! Please !!!!!

## Frequently asked questions about AutoTech

### What is AutoTech?

AutoTech is an automotive calculator app designed for mechanics, technicians, and enthusiasts. It offers quick computation of over 45 formulas related to aerodynamics, chassis, drivetrain, engine, performance, suspension, and tires.

### What units does AutoTech support?

AutoTech supports both U.S. customary units and metric units, allowing for flexible calculations regardless of your preferred measurement system.

### How many formulas are included in AutoTech?

AutoTech includes over 45 different formulas covering a wide range of automotive systems, from engine performance to tire specifications.

### Is AutoTech available on Android devices?

Based on the provided data, AutoTech is currently supported on iPhone and iPod devices. Information regarding Android availability is not specified.

### What is the age rating for AutoTech?

AutoTech has an age rating of 4+, indicating it is suitable for users of all ages and does not contain mature content.

### How often is AutoTech updated?

The latest version of AutoTech is 1.6, and it was last updated on January 7, 2026. This suggests a relatively infrequent update cycle.

### Does AutoTech have ads?

No, AutoTech does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

### What is the price of AutoTech?

AutoTech is a paid application and costs $1.99. This one-time purchase grants access to all its features and formulas.

## Version history (last 5 releases)

### 1.7 — 2026-08-14

New Engine Calculation:
- Rod Angularity

Under the hood changes required by advancements in iOS.

### 1.6 — 2026-01-07

New Suspension Calculations:
- Angle Corrected Spring Rate
- Stacked Spring Rate

Age rating update required by Apple.

### 1.5 — 2023-04-11

New Drivetrain Calculation:
- RPM (from speed, axle gear ratio, transmission gear ratio, and tire diameter)

New Engine Calculations:
- Valve Spring Open Pressure
- Valve Spring Rate

Fixed an issue in the Unit Converter where Weight was not being shown as an option.

### 1.4 — 2020-08-26

Dark mode support.

New Drivetrain section that includes:
- Axle Speed
- Driveshaft Critical Speed
- Gear Ratio
- Rear Wheel Torque
- RPM After Shift

New Engine Calculations:
- Deck Height Clearance
- Valve Curtain Area

New Density category in Unit Converter.

### 1.3 — 2016-10-15

Modernized user interface.

New engine calculation: Supercharger Temperature Gain.

Additional information provided for:
- Brake Mean Effective Pressure
- Effective Drive Ratio
- Equivalent Drive Ratio
- Power Loss at Elevation

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## More apps by Steven Clarner

- [Texas Race Tracks](https://appshunter.io/ios/app/texas-race-tracks/id608786507)

All apps by Steven Clarner: https://appshunter.io/developer/410979939

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*