# iO vs Balluff RFID

The clearest difference is update cadence: Balluff RFID at fortnightly against iO's every 7 months. iO's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, 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.

iO ships an update every 7 months, Balluff RFID fortnightly. The most recent releases landed on July 1, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | iO | Balluff RFID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/io-fly/id1004071859/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 11 MB | 27 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lemonage Software](https://appshunter.io/developer/1004071858) | [Balluff GmbH](https://appshunter.io/developer/874881601) |

## What reviewers say

### iO

[App page](https://appshunter.io/ios/app/io-fly/id1004071859)

This application works with specific hardware to configure, calibrate, and monitor sensor and actuator devices that adhere to the IO-Link standard.

**Highlights:** Configure IO-Link devices, Calibrate sensor devices, Monitor actuator devices, Supports IO-Link standard, Works with iO-Fly hardware

**Features:** macOS Compatibility

**In-app purchases:** none


### Balluff RFID

[App page](https://appshunter.io/ios/app/balluff-rfid/id6752863787)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iO free?

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

### Is Balluff RFID free?

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

### Do iO or Balluff RFID have ads?

Neither iO nor Balluff RFID shows ads.

### Which is updated more often, iO or Balluff RFID?

iO ships an update every 7 months, and Balluff RFID fortnightly. Most recently, iO was updated on July 1, 2026 and Balluff RFID on September 5, 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.*