# CRC Calculator vs IMMO Codes

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.

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.

## The numbers

| Metric | CRC Calculator | IMMO Codes |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 1 MB | 15 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Firmtronics Pty. Ltd.](https://appshunter.io/developer/1318424787) | [Chalana Muthukuda](https://appshunter.io/developer/1673718930) |

## What reviewers say

### CRC Calculator

[App page](https://appshunter.io/ios/app/crc-calculator/id984488943)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


### IMMO Codes

[App page](https://appshunter.io/ios/app/immo-codes/id6756393834)

**In-app purchases:** none


## Frequently asked questions

### Is CRC Calculator free?

CRC Calculator costs $0.99, with no in-app purchases.

### Is IMMO Codes free?

IMMO Codes is free to download, with no in-app purchases.

### Do CRC Calculator or IMMO Codes have ads?

Neither CRC Calculator nor IMMO Codes shows ads.

### Which is updated more often, CRC Calculator or IMMO Codes?

CRC Calculator ships an update every 13 months, and IMMO Codes every 2 months. Most recently, CRC Calculator was updated on September 1, 2026 and IMMO Codes on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*