AutoTech vs Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AutoTech
This automotive calculator provides quick computations for over 45 formulas across various vehicle systems. It supports both U.S. and metric units, making it a versatile tool for mechanics, technicians, and enthusiasts.
- 45+ automotive formulas
- Aerodynamics calculations
- Chassis calculations
- Drivetrain calculations
- Engine calculations
- Performance calculations
- Suspension calculations
- Tire calculations
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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.
Unit Converter
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This is an efficient tool app that integrates a professional calculator with multi-unit conversion functionality. Supports complex expression calculations and multiple categories of physical unit conversions, meeting various calculation needs in study, work, and daily life. 【Core Feature Highlights】 Powerful Expression Calculation Engine ￭ Supports complex mathematical operations (e.g., 2.5 × 3.8 + 1.2 ÷ 0.4) ￭ Scientific notation display ￭ Real-time calculation result preview ￭ Customizable decimal precision Comprehensive Unit Conversion Support ￭ Length, Mass, Time, Current, Temperature, Acceleration, Area, Charge, Force, Frequency, Plane Angle, Solid Angle, Speed, Volume User-Friendly Experience ￭ Save frequently used unit pairs for quick access ￭ Switch freely between dark and light themes ￭ Simple and intuitive interface Smart Conversion Experience ￭ One-tap unit swap function ￭ Copy calculation results and full formulas
Screenshots
Verdict
The clearest difference is price: Unit Converter at Free against AutoTech's $1.99. Unit Converter also leads on update cadence (every 2 weeks vs every 32 months) and iOS requirement (12.0 vs 15.6). AutoTech's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Unit Converter is free to download; AutoTech costs $1.99 up front. Unit Converter sells 1 one-off in-app purchase. AutoTech asks for nothing beyond the download.
AutoTech ships an update every 32 months, Unit Converter every 2 weeks. The most recent releases landed on September 10, 2026 and September 7, 2026 respectively.
| Parameter | AutoTech | Unit Converter |
|---|---|---|
| Price | $1.99 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 32 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Steven Clarner | 伟鹏 李 |
In-app purchases
AutoTech
No in-app purchases
Unit Converter
- Unlock Premium Membership$0.99
Questions
Is AutoTech free?
Is Unit Converter free?
Do AutoTech or Unit Converter have ads?
Which is updated more often, AutoTech or Unit Converter?
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