# TCW Control vs IO

The clearest difference is in-app purchases: TCW Control at none against IO's 1. TCW Control also leads on iOS requirement (7.0 vs 17.6). IO's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. IO sells 1 one-off in-app purchase. TCW Control asks for nothing beyond the download.

TCW Control ships an update every 5 months, IO every 2 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TCW Control | IO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/tcw-control/id909213142/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 35 MB | 15 MB |
| Requires iOS | **7.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Teracom OOD](https://appshunter.io/developer/909213145) | [CJ Solution UG (haftungsbeschraenkt)](https://appshunter.io/developer/1870234861) |

## What reviewers say

### TCW Control

[App page](https://appshunter.io/ios/app/tcw-control/id909213142)

Monitor and control TCW Ethernet controllers from your mobile device. View sensor data, input status, and manage relay outputs. Requires a TCW controller with updated firmware and a static IP address.

**Highlights:** Display sensor values, Display analog and dry contact inputs, Control relay outputs, Add descriptions to monitored parameters, Monitor home automation systems, Environment monitoring, Control heating/cooling systems

**Features:** macOS Compatibility

**In-app purchases:** none


### IO

[App page](https://appshunter.io/ios/app/io-inspector/id6758009180)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version Lifetime | $17.99 | one-time |


## Frequently asked questions

### Is TCW Control free?

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

### Is IO free?

IO is free to download, with in-app purchases available.

### Do TCW Control or IO have ads?

Neither TCW Control nor IO shows ads.

### Which is updated more often, TCW Control or IO?

TCW Control ships an update every 5 months, and IO every 2 weeks. Most recently, TCW Control was updated on October 22, 2026 and IO on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*