I/O Field vs ABB CLOSER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
I/O Field
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The “WAGO I/O Field” app is for monitoring and full operation of the WAGO I/O System Field. This app allows you to display device information for both fieldbus modules and IO-Link hubs, make settings and adjust all device parameters. The communication this requires takes place through the Bluetooth® interface of the mobile device once Data Matrix has been scanned to select the device. Users and the associated access rights can be set up and managed. Outputs can be forced and inputs set in order to support commissioning of systems. The current measured values of a port can be displayed (temperature, voltage, current and states) and configured (including operating mode and filters). Devices can be reset to the factory settings and firmware restarted. License Agreement By downloading the app, you agree to the terms of the WAGO’s license agreement (accessible via EULA and the support URL below).
ABB CLOSER
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This application includes interactive operation and troubleshooting guides for ABB electrification products. The guides can be accessed and used when you need support in front of the equipment. The guidance uses the power of augmented reality (AR) on the devices with AR capabilities. Non-AR mode is available for convenience as well.
Screenshots
Verdict
The clearest difference is update cadence: ABB CLOSER at every 3 months against I/O Field's every 14 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
I/O Field ships an update every 14 months, ABB CLOSER every 3 months. Both last shipped on October 30, 2026.
| Parameter | I/O Field | ABB CLOSER |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 | 12.4 |
| Further details — not scored | ||
| Size | 123 MB | 134 MB |
| Age rating | 4+ | 4+ |
| Developer | WAGO Kontakttechnik GmbH & Co. KG | ABB Information Systems AG |
In-app purchases
I/O Field
No in-app purchases
ABB CLOSER
No in-app purchases









