# Klemsan Device Reader vs ezModbus

The clearest difference is price: Klemsan Device Reader at Free against ezModbus's $4.99. Klemsan Device Reader also leads on update cadence (every 9 days vs every 41 months) and iOS requirement (13.2 vs 17.0). ezModbus's advantage is chart position (#102 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Klemsan Device Reader is free to download; ezModbus costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Klemsan Device Reader ships an update every 9 days, ezModbus every 41 months. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Klemsan Device Reader | ezModbus |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 41 months |
| Monetization | Free | — |
| Best chart rank | — | **#102** |
| Size | 8 MB | 2 MB |
| Requires iOS | **13.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Klemsan Elektrik Elektronik AŞ](https://appshunter.io/developer/1316851537) | [Bitmakers LLC](https://appshunter.io/developer/1474083419) |

## What reviewers say

### Klemsan Device Reader

[App page](https://appshunter.io/ios/app/klemsan-device-reader/id1316851538)

Access real-time data from Klemsan devices with a specialized display for easier reading. Save critical data to your favorites for quick access.

**Highlights:** Instant access to device data, Favorite critical data, Specialized data display, Easy data reading

**Features:** macOS Compatibility

**In-app purchases:** none


### ezModbus

[App page](https://appshunter.io/ios/app/ezmodbus/id1474083420)

**Currently charting:** #102 Top Paid · Business (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Klemsan Device Reader free?

Klemsan Device Reader is free to download, with no in-app purchases.

### Is ezModbus free?

ezModbus costs $4.99, with no in-app purchases.

### Do Klemsan Device Reader or ezModbus have ads?

Neither Klemsan Device Reader nor ezModbus shows ads.

### Which is updated more often, Klemsan Device Reader or ezModbus?

Klemsan Device Reader ships an update every 9 days, and ezModbus every 41 months. Most recently, Klemsan Device Reader was updated on October 5, 2026 and ezModbus on October 13, 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.*