# D vs Murray Collier App

The clearest difference is update cadence: Murray Collier App at every 3 weeks against D's every 31 months. D's advantage is iOS requirement (13.0 vs 16.6). 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.

D ships an update every 31 months, Murray Collier App every 3 weeks. The most recent releases landed on October 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | D | Murray Collier App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 3 weeks** |
| Size | 61 MB | 49 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Health is One LTD](https://appshunter.io/developer/1635028232) | [Emily Sudduth](https://appshunter.io/developer/1721274803) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-exy/id1660916973)

**Features:** macOS Compatibility

**In-app purchases:** none


### Murray Collier App

[App page](https://appshunter.io/ios/app/murray-collier-app/id6504051473)

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is Murray Collier App free?

Murray Collier App is free to download, with no in-app purchases.

### Do D or Murray Collier App have ads?

Neither D nor Murray Collier App shows ads.

### Which is updated more often, D or Murray Collier App?

D ships an update every 31 months, and Murray Collier App every 3 weeks. Most recently, D was updated on October 10, 2026 and Murray Collier App on September 17, 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.*