# Abbysan Pro vs DELTA55

The clearest difference is update cadence: DELTA55 at every 2 months against Abbysan Pro's every 8 months. Abbysan Pro'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.

Abbysan Pro ships an update every 8 months, DELTA55 every 2 months. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Abbysan Pro | DELTA55 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Size | 23 MB | 103 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Apex Global Solutions](https://appshunter.io/developer/903321221) | [Perfect Gym Solutions Sp. z o.o.](https://appshunter.io/developer/1004382730) |

## What reviewers say

### Abbysan Pro

[App page](https://appshunter.io/ios/app/abbysan-pro/id1483210561)

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

**In-app purchases:** none


### DELTA55

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Abbysan Pro free?

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

### Is DELTA55 free?

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

### Do Abbysan Pro or DELTA55 have ads?

Neither Abbysan Pro nor DELTA55 shows ads.

### Which is updated more often, Abbysan Pro or DELTA55?

Abbysan Pro ships an update every 8 months, and DELTA55 every 2 months. Most recently, Abbysan Pro was updated on October 4, 2026 and DELTA55 on October 10, 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.*