# D vs O'Wellness Sky

The clearest difference is update cadence: O'Wellness Sky at every 2 months against D's every 5 months. 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 5 months, O'Wellness Sky every 2 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | D | O'Wellness Sky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 27 MB | 57 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [D-Gym](https://appshunter.io/developer/1495643381) | [SENKRON BILGISAYAR OTOM LTD.](https://appshunter.io/developer/498226578) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-gym/id1495643382)

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

**In-app purchases:** none


### O'Wellness Sky

[App page](https://appshunter.io/ios/app/owellness-sky/id6739879185)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is O'Wellness Sky free?

O'Wellness Sky is free to download, with no in-app purchases.

### Do D or O'Wellness Sky have ads?

Neither D nor O'Wellness Sky shows ads.

### Which is updated more often, D or O'Wellness Sky?

D ships an update every 5 months, and O'Wellness Sky every 2 months. Most recently, D was updated on October 25, 2026 and O'Wellness Sky on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*