# DELTA55 vs Stark Ring

The clearest difference is device support: Stark Ring at 3 against DELTA55's 1. 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.

DELTA55 ships an update every 2 months, Stark Ring every 3 months. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | DELTA55 | Stark Ring |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 103 MB | 102 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Perfect Gym Solutions Sp. z o.o.](https://appshunter.io/developer/1004382730) | [Dien Nha Huyen](https://appshunter.io/developer/1886728359) |

## What reviewers say

### DELTA55

[App page](https://appshunter.io/ios/app/delta55/id6475958203)

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

**In-app purchases:** none


### Stark Ring

[App page](https://appshunter.io/ios/app/stark-ring/id6760904959)

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

**In-app purchases:** none


## Frequently asked questions

### Is DELTA55 free?

DELTA55 is free to download, with no in-app purchases.

### Is Stark Ring free?

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

### Do DELTA55 or Stark Ring have ads?

Neither DELTA55 nor Stark Ring shows ads.

### Which is updated more often, DELTA55 or Stark Ring?

DELTA55 ships an update every 2 months, and Stark Ring every 3 months. Most recently, DELTA55 was updated on October 10, 2026 and Stark Ring on September 28, 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.*