# ERC Unlocker vs RFIDX

The clearest difference is in-app purchases: RFIDX at none against ERC Unlocker's 2. RFIDX also leads on iOS requirement (13 vs 15.6). ERC Unlocker's advantage is device support. On price there is nothing between them.

Both are free to download. ERC Unlocker sells 2 one-off in-app purchases. RFIDX asks for nothing beyond the download.

## The numbers

| Metric | ERC Unlocker | RFIDX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (8 ratings)](https://appshunter.io/ios/app/erc-unlocker-erc-calculator/id1347685769/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 56.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 11 MB |
| Requires iOS | 15.6 | **13** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Zeeshan Ahmad](https://appshunter.io/developer/1320755442) | [海玉 李](https://appshunter.io/developer/1603815026) |

## What reviewers say

### ERC Unlocker

[App page](https://appshunter.io/ios/app/erc-unlocker-erc-calculator/id1347685769)

This utility app calculates ERC codes required for certain car audio and navigation systems after power interruptions. It offers a simple process to regain access to multimedia features by entering your device's serial number.

**Highlights:** Fast ERC code calculation, Supports wide range of audio units, Simple instructions, Convenient and quick access, Customer support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 1 ERC Code | $9.99 | one-time |
| Get 1  68 Series ERC Code | $19.99 | one-time |


### RFIDX

[App page](https://appshunter.io/ios/app/rfidx/id6759708664)

**In-app purchases:** none


## Frequently asked questions

### Is ERC Unlocker free?

ERC Unlocker is free to download, with in-app purchases available.

### Is RFIDX free?

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

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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.*