# BilTAY Technology KAYISI vs Modbus Viewer

The clearest difference is update cadence: Modbus Viewer at every 2 days against BilTAY Technology KAYISI's every 16 months. BilTAY Technology KAYISI's advantage is iOS requirement (15.0 vs 18.5). 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.

BilTAY Technology KAYISI ships an update every 16 months, Modbus Viewer every 2 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BilTAY Technology KAYISI | Modbus Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 days** |
| Size | 13 MB | 7 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BilTAY Technology](https://appshunter.io/developer/1514338715) | [Erdem Bilgicer](https://appshunter.io/developer/1824808762) |

## What reviewers say

### BilTAY Technology KAYISI

[App page](https://appshunter.io/ios/app/biltay-technology-kayisi/id6476660728)

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

**In-app purchases:** none


### Modbus Viewer

[App page](https://appshunter.io/ios/app/modbus-viewer/id6748247211)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BilTAY Technology KAYISI free?

BilTAY Technology KAYISI is free to download, with no in-app purchases.

### Is Modbus Viewer free?

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

### Do BilTAY Technology KAYISI or Modbus Viewer have ads?

Neither BilTAY Technology KAYISI nor Modbus Viewer shows ads.

### Which is updated more often, BilTAY Technology KAYISI or Modbus Viewer?

BilTAY Technology KAYISI ships an update every 16 months, and Modbus Viewer every 2 days. Most recently, BilTAY Technology KAYISI was updated on November 8, 2026 and Modbus Viewer on October 30, 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.*