TC Mobile I/O vs sDrives
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
sDrives
Access alarm descriptions, troubleshooting guides, and user manuals for Siemens drives. This professional tool provides essential information for commissioning and service, supporting a wide range of drive models.
- Quick alarm description access
- Troubleshooting guides
- Links to user manuals
- Support for multiple Siemens drive models
- Multi-language alarm descriptions
- In-app purchase to unlock all drives
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The 'sDrives - VFD help' app provides quick access to alarm descriptions of Siemens drives. In a second you get a full alarm description, troubleshooting guide and even a link to the latest user manual. App greatly helps by commissioning and service giving you the necessary information when you need it and where you need it. It is small but really feature full application. A professional tool for professionals. Currently supported drives: G110, G120 CU240B-2, , G120 CU240E-2, G120 CU230P-2, G120C, G120P, MM420, MM430, MM440, S110, SIMOREG DC-MASTER, SIMOVERT MASTERDRIVES VC, V20, V60, V90. The app is in English. For most popular drives the alarms descriptions are also available in Russian, Spanish, French, Italian and simplified Chinese. Free version is fully functioning but is limited with only one randomly chosen drive. If you like the app, you can unlock all the drives by means of in-app purchase. IMPORTANT DISCLAIMER This app IS NOT affiliated with Siemens AG or any of its affiliates!
Screenshots
Verdict
The clearest difference is in-app purchases: TC Mobile I/O at none against sDrives's 1. sDrives's advantage is update cadence (every 2 months vs every 28 months). On price, review sentiment, ads 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. sDrives sells 1 one-off in-app purchase. TC Mobile I/O asks for nothing beyond the download.
TC Mobile I/O ships an update every 28 months, sDrives every 2 months. Both last shipped on November 2, 2026.
| Parameter | TC Mobile I/O | sDrives |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (27 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 27 — better |
| Update frequency | Every 28 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 12 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Phoenix Contact GmbH & Co. KG | Evgeny Makarenkov |
Customer experience
TC Mobile I/O
sDrives
In-app purchases
TC Mobile I/O
No in-app purchases
sDrives
- All Drives$1.99
Questions
Is TC Mobile I/O free?
Is sDrives free?
Do TC Mobile I/O or sDrives have ads?
Which is updated more often, TC Mobile I/O or sDrives?
Other comparisons
