# Dr. Digital vs ChallengeMe ©

The clearest difference is update cadence: Dr. Digital at every 11 days against ChallengeMe ©'s every 3 weeks. 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.

Dr. Digital ships an update every 11 days, ChallengeMe © every 3 weeks. The most recent releases landed on October 27, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Dr. Digital | ChallengeMe © |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Size | 102 MB | 23 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Dr, Digital s.r.o.](https://appshunter.io/developer/1652534002) | [eValue.cz s.r.o.](https://appshunter.io/developer/1565357287) |

## What reviewers say

### Dr. Digital

[App page](https://appshunter.io/ios/app/dr-digital/id6468033584)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ChallengeMe ©

[App page](https://appshunter.io/ios/app/challengeme/id6477869642)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dr. Digital free?

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

### Is ChallengeMe © free?

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

### Do Dr. Digital or ChallengeMe © have ads?

Neither Dr. Digital nor ChallengeMe © shows ads.

### Which is updated more often, Dr. Digital or ChallengeMe ©?

Dr. Digital ships an update every 11 days, and ChallengeMe © every 3 weeks. Most recently, Dr. Digital was updated on October 27, 2026 and ChallengeMe © on October 5, 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.*