# Cdkl5 Forum vs BoneCalc

The clearest difference is iOS requirement: Cdkl5 Forum at 11.0 against BoneCalc's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Cdkl5 Forum | BoneCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cdkl5-forum/id1187671519/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 65 MB | 72 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Loulou Foundation](https://appshunter.io/developer/1187671518) | [BC Children's Hospital](https://appshunter.io/developer/1521364756) |

## What reviewers say

### Cdkl5 Forum

[App page](https://appshunter.io/ios/app/cdkl5-forum/id1187671519)

This app connects scientists, clinicians, and industry professionals to advance research and therapeutic approaches for the CDKL5 deficiency disorder. It facilitates knowledge exchange and discussion to accelerate the discovery of treatments and cures for this neuro-genetic condition.

**Highlights:** Knowledge exchange platform, Scientific collaboration, Therapeutic approach discussion, Research sharing, Community for experts, Accelerating cures

**Features:** macOS Compatibility

**In-app purchases:** none


### BoneCalc

[App page](https://appshunter.io/ios/app/bonecalc/id1535346472)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cdkl5 Forum free?

Cdkl5 Forum is free to download, with no in-app purchases.

### Is BoneCalc free?

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

### Do Cdkl5 Forum or BoneCalc have ads?

Neither Cdkl5 Forum nor BoneCalc shows ads.

### Which is updated more often, Cdkl5 Forum or BoneCalc?

Cdkl5 Forum ships an update weekly, and BoneCalc weekly. Most recently, Cdkl5 Forum was updated on October 6, 2026 and BoneCalc on October 14, 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.*