# Thermal Growth: Offset Calc — Thermal Offset Calculator

> Thermal Offset Calculator (iPhone/iPad app by Revoroute Ltd.)

- Source: https://appshunter.io/ios/app/thermal-growth-offset-calc/id6755695166 (this page in markdown: same URL + `.md`)
- Developer: [Revoroute Ltd](https://appshunter.io/developer/1824733488)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 20 MB
- Languages: American English, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Italian, Norwegian Bokmål, Polish and 4 more
- Released: 2025-11-26
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/thermal-growth-offset-calc/id6755695166/reviews.md

## What is Thermal Growth?

Thermal Growth is a fast and accurate thermal expansion calculator for machinists, toolmakers, CNC programmers and inspectors.

Temperature changes affect dimensional accuracy. Thermal Growth computes the precise size adjustment required to hit your target dimension at the reference temperature.

Features

• Calculate thermal expansion offsets using standard engineering formulas
• Supports steels, aluminium alloys, titanium, copper, brass, tool steels and polymers
• Works across –273°C to 2500 °C
• Adjustable reference temperature (default 20 °C)
• Supports metric (mm/°C) and imperial (inch/°F)
• Large, clear result with full calculation breakdown
• Fully offline — ideal for workshop or inspection environments
• Clean, workshop-friendly interface with dark and light mode
• Request new materials directly from the app

Material Database Includes

• Aluminium alloys (2014, 2024, 6061, 6082, 7075)
• Non-ferrous metals (Copper, Brass CW505L, Phosphor Bronze, Monel, Nickel, Inconel)
• Tool steels (A2, D2, P20)
• Polymers (Acetal/Delrin, PEEK, ABS and filled grades)
• Additional materials added regularly

Designed for Machinists

Whether turning, grinding, milling or inspecting tight-tolerance components, Thermal Growth gives you the correct temperature-compensated dimension instantly.

Ad-Supported with No Tracking

A small AdMob banner supports development.
No analytics, no tracking and no personal data collection.


## Version history (last 5 releases)

### 1.7 — 2026-01-23

•	Temperature input is now manual, with a wider supported range
	•	Major expansion of the material library
	•	New material description cards for clearer material selection
	•	General usability and polish improvements

### 1.6 — 2026-01-19

•	Expanded material library
	•	Minor accuracy improvements
	•	Performance and stability enhancements

### 1.5 — 2025-12-21

Materials now grouped for easier selection

### 1.4 — 2025-12-05

This update expands Thermal Growth for machinists worldwide:

• 13 languages now supported for a better global experience
• New polymer materials added, including Acetal/Delrin, PEEK, ABS and common filled variants
• Minor refinements and stability improvements

Thank you for your continued support!

### 1.3 — 2025-12-03

• Added “Request a Material” feature
• Added App Store review prompt
• Fixed reference temperature update bug in Settings
• General performance and UI improvements

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## More apps by Revoroute Ltd

- [FastenIQ](https://appshunter.io/ios/app/fasteniq/id6758679320)
- [VFCalc Fuel Tracker](https://appshunter.io/ios/app/vfcalc-fuel-tracker/id6758960979)

All apps by Revoroute Ltd: https://appshunter.io/developer/1824733488

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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 2026-07-17.*