# Shrink2Fit

> Thermal expansion calculator for mechanical fitment installation. (iPhone/iPad app by D&M App Company LLC.)

- Source: https://appshunter.io/ios/app/shrink2fit/id958786604 (this page in markdown: same URL + `.md`)
- Developer: [D&M App Company LLC](https://appshunter.io/developer/957195549)
- Category: Productivity
- Price: $0.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 14.0 · 1 MB
- Languages: English
- Released: 2015-02-11
- Data updated: 2026-07-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/shrink2fit/id958786604/reviews.md

## What is Shrink2Fit?

Shrink-2-Fit or Shrink-2-Fit Lite

Don't guess how hot to heat couplings, bearings, or other shaft fitments.

Shrink-2-Fit is designed to assist the mechanic with the installation of coupling, bearings, or other shaft fitments that require thermal growth to overcome interference fits.

Features include;

- Key length calculator, used to determine optimal length of key stock for coupling fitments.

- Fitment thermal growth calculator, used to determine the correct temperature to heat the fitment, slide it on the shaft, and position it to the correct location with confidence.

- Imperial or Metric units

## Key features

- Key length calculator
- Thermal growth calculator
- Imperial/Metric units
- Shaft fitment installation aid


## Frequently asked questions about Shrink2Fit

### What is Shrink2Fit used for?

Shrink2Fit assists mechanics in installing shaft fitments that require thermal expansion. It helps determine the correct heating temperature and optimal key lengths for couplings and bearings.

### How much does Shrink2Fit cost?

Shrink2Fit is available for a one-time purchase of $0.99.

### What units does Shrink2Fit support?

Shrink2Fit supports both Imperial and Metric units, making it versatile for various mechanical applications.

### What devices is Shrink2Fit compatible with?

Shrink2Fit is designed for iPhone and iPod devices.

### How often is Shrink2Fit updated?

Shrink2Fit was last updated on July 2, 2024, indicating active development and maintenance.

### Does Shrink2Fit have ads?

No, Shrink2Fit is ad-free, providing an uninterrupted user experience.

### What is the age rating for Shrink2Fit?

Shrink2Fit has an age rating of 4+, suitable for a wide range of users.

### Can Shrink2Fit be used for general engineering calculations?

While Shrink2Fit is specialized for thermal fitment installations, its calculation features might be useful for some general engineering tasks involving thermal expansion.

## Version history (last 5 releases)

### 2.6 — 2024-07-02

Updated for iOS 17

### 2.5 — 2022-04-23

Updated for iOS 15
Bug fixes

### 2.4 — 2021-05-15

Updated for iOS 14
Updated formatting

### 2.3 — 2019-05-28

Updates for iOS 12.2

### 2.2 — 2018-11-19

iOS 12 Updates

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## More apps by D&M App Company LLC

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All apps by D&M App Company LLC: https://appshunter.io/developer/957195549

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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 2026-07-07.*