# MyRealBook simple vs CDBapp

The clearest difference is update cadence: CDBapp at every 6 weeks against MyRealBook simple's every 40 months. MyRealBook simple's advantage is iOS requirement (14.0 vs 16.4). 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.

MyRealBook simple ships an update every 40 months, CDBapp every 6 weeks. The most recent releases landed on June 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | MyRealBook simple | CDBapp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 3.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 32 MB | 52 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Libre](https://appshunter.io/developer/566157279) | [K12 - APS](https://appshunter.io/developer/1805208734) |

## What reviewers say

### MyRealBook simple

[App page](https://appshunter.io/ios/app/myrealbook-simple/id1320083817)

Access multimedia study content like videos, audio, and interactive lessons directly from your smartphone. Enhance your learning experience with supplementary materials for your textbooks.

**Highlights:** Multimedia content access, Video and audio support, Interactive lessons, Exercises and documents, Supplementary study materials, No authentication required

**Features:** macOS Compatibility

**In-app purchases:** none


### CDBapp

[App page](https://appshunter.io/ios/app/cdbapp/id6743943099)

**In-app purchases:** none


## Frequently asked questions

### Is MyRealBook simple free?

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

### Is CDBapp free?

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

### Do MyRealBook simple or CDBapp have ads?

Neither MyRealBook simple nor CDBapp shows ads.

### Which is updated more often, MyRealBook simple or CDBapp?

MyRealBook simple ships an update every 40 months, and CDBapp every 6 weeks. Most recently, MyRealBook simple was updated on June 8, 2026 and CDBapp on September 10, 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.*