# ReDi vs Central Billing System

The clearest difference is iOS requirement: Central Billing System at 11.0 against ReDi's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ReDi | Central Billing System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (264 ratings)](https://appshunter.io/ios/app/redi/id1506576790/reviews)** | — |
| Number of ratings | **264** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free | — |
| Size | 92 MB | 38 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MED-EL](https://appshunter.io/developer/455935145) | [KRYSTAL DIGITAL NETWORKS SOLUTIONS LIMITED](https://appshunter.io/developer/1646948391) |

## What reviewers say

### ReDi

[App page](https://appshunter.io/ios/app/redi/id1506576790)

This app helps users of hearing technology practice auditory and speech skills independently. It offers structured exercises with immediate feedback, suitable for various difficulty levels and available on mobile devices.

**Highlights:** Auditory and speech practice, Independent user exercises, Real-time feedback, Multiple difficulty levels, Suitable for hearing aid/implant users

**In-app purchases:** none


### Central Billing System

[App page](https://appshunter.io/ios/app/central-billing-system/id1661103467)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReDi free?

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

### Is Central Billing System free?

Central Billing System is free to download, with no in-app purchases.

### Do ReDi or Central Billing System have ads?

Neither ReDi nor Central Billing System shows ads.

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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.*