# Oklyn vs Asys

The clearest difference is update cadence: Oklyn at every 2 months against Asys's every 8 months. Oklyn also leads on iOS requirement (13.0 vs 15.1). 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.

Oklyn ships an update every 2 months, Asys every 8 months. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Oklyn | Asys |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free | — |
| Size | 20 MB | 63 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tuxtla SAS](https://appshunter.io/developer/1679953492) | [FEELITY](https://appshunter.io/developer/1296863310) |

## What reviewers say

### Oklyn

[App page](https://appshunter.io/ios/app/oklyn/id1364957029)

This app connects to a smart pool device to monitor water quality, optimize filtration, and automate pool maintenance. It allows remote control of pool equipment and provides real-time data and historical analysis for efficient pool care.

**Highlights:** Water quality analysis (pH, RedOx, Temp), Filtration optimization, Automated active winterization, Maintenance advice, Remote pool equipment control, Leak detection in technical room

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

**In-app purchases:** none


### Asys

[App page](https://appshunter.io/ios/app/asys/id1549207910)

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

**In-app purchases:** none


## Frequently asked questions

### Is Oklyn free?

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

### Is Asys free?

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

### Do Oklyn or Asys have ads?

Neither Oklyn nor Asys shows ads.

### Which is updated more often, Oklyn or Asys?

Oklyn ships an update every 2 months, and Asys every 8 months. Most recently, Oklyn was updated on November 2, 2026 and Asys on October 29, 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.*