CRC Calculator vs IMMO Codes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CRC Calculator
This utility generates cyclic redundancy check (CRC) bytes from input data using polynomial division. It supports 8, 16, 32, and 64-bit check bytes and allows data input via manual entry or file upload. Users can choose between normal or reversed CRC formats.
- Generates 8, 16, 32, & 64-bit CRC bytes
- Input data via manual entry (hex)
- Source data from uploaded files
- Supports normal and reversed CRC formats
- Integrated document explorer
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CRC Calculator generates cyclic redundancy check byte(s) using the remainder from a polynomial division on the input data. The supported generated check byte(s) are 8, 16, 32 & 64. Data can be manually entered in hexadecimal format or can be sourced from a file that is uploaded through the integrated document explorer. CRC check values can be generated in a normal (most significant bit first) or reversed (least significant bit first) format. This is an essential tool for any developer or software engineer.
IMMO Codes
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IMMO Codes is a professional-grade mobile app designed for automotive locksmiths, technicians, and key specialists who need fast and reliable access to vehicle immobilizer and security data. Retrieve IMMO PIN codes, key codes, and essential security information in seconds by simply entering a VIN. No phone calls, no delays — just instant results where available.
Screenshots
Verdict
The clearest difference is price: IMMO Codes at Free against CRC Calculator's $0.99. IMMO Codes also leads on update cadence (every 2 months vs every 13 months) and iOS requirement (15.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
IMMO Codes is free to download; CRC Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CRC Calculator ships an update every 13 months, IMMO Codes every 2 months. The most recent releases landed on September 1, 2026 and September 20, 2026 respectively.
| Parameter | CRC Calculator | IMMO Codes |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 80.0% of reviews | — |
| Update frequency | Every 13 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Firmtronics Pty. Ltd. | Chalana Muthukuda |
In-app purchases
CRC Calculator
No in-app purchases
IMMO Codes
No in-app purchases
Questions
Is CRC Calculator free?
Is IMMO Codes free?
Do CRC Calculator or IMMO Codes have ads?
Which is updated more often, CRC Calculator or IMMO Codes?
Other comparisons
