# AutoTech vs WireSizer

The clearest difference is update cadence: WireSizer at every 5 months against AutoTech's every 32 months. WireSizer also leads on chart position (#200 vs unranked). AutoTech's advantage is review sentiment (100% vs 84%) and price ($1.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

AutoTech costs $1.99 and WireSizer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AutoTech ships an update every 32 months, WireSizer every 5 months. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | AutoTech | WireSizer |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | — | **[4.5 (226 ratings)](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550/reviews)** |
| Number of ratings | — | **226** |
| Positive reviews | **100.0% of reviews** | 83.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#200** |
| Size | 2 MB | 2 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Steven Clarner](https://appshunter.io/developer/410979939) | [Juggernaut Technology, Inc.](https://appshunter.io/developer/494748553) |

## What reviewers say

### AutoTech

[App page](https://appshunter.io/ios/app/autotech/id410979934)

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.

**Highlights:** 45+ automotive formulas, Aerodynamics calculations, Chassis calculations, Drivetrain calculations, Engine calculations, Performance calculations, Suspension calculations, Tire calculations

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

**In-app purchases:** none


### WireSizer

[App page](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550)

**Currently charting:** #200 Top Paid · Utilities (US App Store)

This app quickly calculates the correct DC wire gauge needed for any circuit. Simply input voltage, current, and length to determine the optimal wire size, considering voltage drop and ampacity limits. It's suitable for various DC systems up to 60 VDC.

**Highlights:** Instant DC wire size calculation, Voltage drop percentage selection, Ampacity limit checks, Supports various wire types and gauges, Adjustable for installation conditions, Materials list for selections

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick calculations
- 💡 ABYC-based calculations
- 👍 Interactive interface
- 👍 Essential tool for electrical projects

**What reviewers complain about**

- ⚠️ Limited to 50VDC
- ⚠️ No AC calculations
- ⚠️ Lacks advanced features
- ⚠️ Some users find it useless
- ⚠️ Voltage drop percentage requires conversion

**Requested features**

- AC calculation for higher voltages
- Support for higher DC voltages (e.g., 150VDC)
- Support for AC voltages (e.g., 240VAC)
- Include actual voltage drop on final screen
- More variables like wire ampacity and cables in a bundle


## Frequently asked questions

### Is AutoTech free?

AutoTech costs $1.99, with no in-app purchases.

### Is WireSizer free?

WireSizer costs $4.99, with no in-app purchases.

### Do AutoTech or WireSizer have ads?

Neither AutoTech nor WireSizer shows ads.

### Which is updated more often, AutoTech or WireSizer?

AutoTech ships an update every 32 months, and WireSizer every 5 months. Most recently, AutoTech was updated on September 10, 2026 and WireSizer 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.*