# WrenchMath — Shop calculators & conversions

> Shop calculator and conversion toolbox with optional Pro upgrade. (iPhone/iPad app by John Lucas.)

- Source: https://appshunter.io/ios/app/wrenchmath/id6814333619 (this page in markdown: same URL + `.md`)
- Developer: [John Lucas](https://appshunter.io/developer/6806886326)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 17.0 · 4 MB
- Languages: American English
- Released: 2026-09-24
- Data updated: 2026-10-31
- Monetization: free with in-app purchases

## What is WrenchMath?

WrenchMath brings practical shop calculations, reference tables, and phone tools into one organized toolbox.

Use the free quick conversions for fractions, metric measurements, torque, pressure, temperature, volume, and length, plus Digital Level. An optional one-time WrenchMath Pro purchase unlocks the complete collection of 39 tools. No subscription, ads, tracking, or WrenchMath account.

The toolbox includes:
• Fastener tools for torque-wrench extensions, threads, bolt circles, tap drills, and bolt grades.
• Engine and drivetrain calculations for horsepower, displacement, compression, tires, speed, and gearing.
• Hydraulics tools for cylinder force, speed, cycle time, pump power, hose velocity, and hydraulic motors.
• Electrical tools for Ohm's law, voltage drop, and battery runtime.
• Shop and fabrication calculations for circles, right triangles, pulleys, and fill volume.
• Fill Volume for mulch, soil, gravel, and similar materials: enter area dimensions and depth, then see bulk volume and an optional whole-bag estimate in US or metric units.
• AR Tape, Digital Level, and a gyroscope-based Torque-Angle Assistant on compatible devices.

Make the toolbox yours. Rearrange sections, collapse the groups you use less often, keep favorites, search for tools, and return to saved entries. Greasy-Finger Mode provides extra-large controls and bigger results. Calculator math works offline; purchases and purchase restoration require the App Store.

WrenchMath is a calculation aid. Follow manufacturer specifications and safe work procedures. Verify measurements for critical work. Phone-based measuring tools are estimates and do not replace calibrated equipment. Fill estimates do not automatically add settling or waste allowances.

## Key features

- Shop calculations and conversions
- Fastener, engine, and hydraulics tools
- Electrical and fabrication calculators
- AR Tape Measure and Digital Level
- Offline calculator functionality
- Customizable interface
- Greasy-Finger Mode

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| WrenchMath Pro | $2.99 | one-time |


## Is WrenchMath safe?

Not enough ratings yet to assess WrenchMath.

## Is WrenchMath legit?

WrenchMath has limited verification signals. The AppsHunter Legitimacy Score for WrenchMath is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about WrenchMath

### What is WrenchMath?

WrenchMath is a utility app that provides a comprehensive toolbox of practical shop calculations, reference tables, and measurement tools. It includes specialized calculators for fasteners, engines, hydraulics, electrical systems, and fabrication.

### Is WrenchMath free to use?

The basic version of WrenchMath is free and includes quick conversions for common measurements and a digital level. An optional one-time purchase unlocks the full collection of 39 tools as WrenchMath Pro.

### Does WrenchMath have ads?

No, WrenchMath does not contain advertisements. The developer explicitly states 'no ads, tracking, or WrenchMath account' for a clean user experience.

### Can I use WrenchMath offline?

Yes, the calculator math functions within WrenchMath work offline. However, purchases and purchase restoration require an active internet connection to the App Store.

### What devices does WrenchMath support?

WrenchMath is available for iPhone and iPad devices. It is designed to be used on Apple's mobile platforms.

### How often is WrenchMath updated?

WrenchMath was last updated on September 24, 2026, with version 1.0. Future updates will likely be released periodically to add features or improve functionality.

### What are the benefits of WrenchMath Pro?

WrenchMath Pro unlocks the complete collection of 39 tools within the app, offering expanded functionality beyond the free basic calculations and conversions. It is a one-time purchase with no subscription required.

### Is WrenchMath suitable for younger users?

WrenchMath has an age rating of 12+, suggesting it is appropriate for teenagers and older users. The app's technical calculations and tools are geared towards practical applications.

## Version history (last 1 release)

### 1.0 — 2026-09-24

No release notes.

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## More apps by John Lucas

- [OilChange: Maintenance Log](https://appshunter.io/ios/app/oilchange-maintenance-log/id6814448041)

All apps by John Lucas: https://appshunter.io/developer/6806886326

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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 2026-10-31.*