# CRC Calculator — user reviews

> 5 indexed App Store user reviews of CRC Calculator by Firmtronics Pty. Ltd..

- Source: https://appshunter.io/ios/app/crc-calculator/id984488943/reviews
- App overview in markdown: https://appshunter.io/ios/app/crc-calculator/id984488943.md

## Most critical reviews (5 lowest-rated)

### 1/5 — 程序打不开

*2015-08-16*

购买的这个程序打不开，咋办？

### 4/5 — Better than any online calculator

*2015-05-04, version 1.0*

This package was great for checking the checksums while I was debugging some USB transactions. It was good to have a native calculator that doesn't rely on an Internet connection. Great to have all CRC byte lengths in the same package.

### 4/5 — Great app!!

*2015-04-29, version 1.0*

Fantastic little app. Was debugging a network the other day and this handy little tool calculated the CRC 64 checksum perfectly for me to verify the processor was working correctly. Definitely recommend it for anyone needing to calculate a CRC checksum.

### 5/5 — Fantastic app!

*2015-04-30, version 1.0*

This tool was great for generating the CRC checksum on my serial network packets. I simply copied and pasted in the whole network packet and put in the CRC poly and the tool cracked the checksum out with ease. The reversed (LSB) is a great feature as i haven’t come across another calculator tool that can handle this notation yet.

### 5/5 — Great tool for embedded systems development

*2015-04-29, version 1.0*

This utility came in handy for verifying that my code was storing the correct CRC checksum in an EEPROM memory chip. Great simple easy to use interface.

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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 2026-09-01.*