TC Mobile I/O vs OPTICHECK Temperature Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TC Mobile I/O
Control your TC MOBILE I/O X200 SMS relay with this application. It displays device status and sends commands, eliminating the need for manual SMS writing. Access datasheets and switch between German and English languages.
- Device status indication
- Send switching commands
- Eliminates manual SMS writing
- Data sheet download
- Multilingual support (German, English)
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This app supports you in using the TC MOBILE I/O X200 SMS relay (firmware version 2.0 or later). It indicates the device status, and sends the switching commands – the manual writing of SMS is no longer necessary. Other functions and features: - Data sheet download - Languages: German, English
OPTICHECK Temperature Mobile
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OPTICHECK Temperature Mobile is a great tool for people working with service and maintenance as it provides a quick health check of your process. - User friendly interface Optimized interface for smartphones and tablets for an easy and convenient configuration - Copy and save time Copy and paste a configuration to as many transmitters as you like without making any changes and it only takes seconds. - Live Monitoring The live monitoring and diagnostics in OPTICHECK Temperature Mobile makes it possible to follow the process temperature in real time. - Get full control of your process In the app you can see the ambient temperature and supply voltage the transmitter has been exposed to. This allows you to detect peaks that could damage the process control. - Additional product information Quick links to each product page for extra information about the transmitter.
Screenshots
Verdict
The clearest difference is update cadence: OPTICHECK Temperature Mobile at every 4 months against TC Mobile I/O's every 28 months. OPTICHECK Temperature Mobile also leads on iOS requirement (9.0 vs 11.0.0). 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.
TC Mobile I/O ships an update every 28 months, OPTICHECK Temperature Mobile every 4 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | TC Mobile I/O | OPTICHECK Temperature Mobile |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 28 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Phoenix Contact GmbH & Co. KG | KROHNE Messtechnik GmbH |
In-app purchases
TC Mobile I/O
No in-app purchases
OPTICHECK Temperature Mobile
No in-app purchases
Questions
Is TC Mobile I/O free?
Is OPTICHECK Temperature Mobile free?
Do TC Mobile I/O or OPTICHECK Temperature Mobile have ads?
Which is updated more often, TC Mobile I/O or OPTICHECK Temperature Mobile?
Other comparisons
