ComBackups vs TC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ComBackups
Scan QR codes generated by an ETC combustion control system to retrieve backup commissioning data. The app stores and allows emailing of these backup files directly from your iPhone. Optionally, create spreadsheets of the data in your Google account.
- Scan QR codes for backup data
- Retrieve commissioning data files (CBU)
- Store and email backup files
- Create Google Sheets from data
- View backup files within the app
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The touch screen of an ETC combustion control system maintains a backup of the most recent commissioning data set. This can be displayed as a QR code by the system. This app allows the QR code to be scanned by an iphone and the backup file (CBU) to be retrieved. The CBU file is stored in the phone and can be viewed and emailed from within the app. Optionally, a spreadsheet can be created in the users Google account using 'Google Sheets'.
TC
This utility app provides quick and accurate conversions between resistance, potential, and temperature for various thermocouples and RTDs. It supports offline use, temperature recording with export, and offers an intuitive interface for field technicians and engineers.
- Thermocouple and RTD conversion
- Supports multiple sensor types
- Offline functionality
- Temperature recording and charting
- Export data to Excel
- Intuitive user interface
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This software is a user-friendly, efficient, and comprehensive tool designed for field technicians, engineers, and programmers. It allows for quick and easy conversion between resistance potential and temperature, suitable for various common temperature sensors. This application simplifies the temperature measurement process, providing a practical solution for professionals. Data support: Supports thermocouple types B, E, J, K, N, R, S, T, C, D, G with all voltages measured in millivolts (mV). The conversion formulas used are derived from NIST thermocouple tables and coefficients. Supports bi-directional query for PT1000, PT100, PT500, PT800, PT10, CU50, CU100, Ni100, Ni120, Ni1000 RTDs (ITS-90). Temperature recording: Supports temperature recording and temperature curve display, with one-click export of records and charts to Excel, facilitating on-site data entry and analysis. Fast and accurate: Instantly obtain the temperature coefficients and performance curves you need. Offline availability: Can be queried in field environments without network access. Intuitive interface: Clean design, easy to operate. Regular updates: Always maintains the latest industry standards. Whether you're an industrial automation engineer, process control expert, factory instrument engineer, or a student of temperature measurement, TC-RTD is an indispensable assistant for you.
Screenshots
Verdict
The clearest difference is price: ComBackups at Free against TC's $1.99. TC's advantage is update cadence (every 3 months vs every 11 months). On rating, ratings volume, ads and in-app purchases 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
ComBackups is free to download; TC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ComBackups against 5.0 for TC. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
ComBackups ships an update every 11 months, TC every 3 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.
| Parameter | ComBackups | TC |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 11 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 25 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Energy Technology and Control Limited | 立娜 王 |
Customer experience
ComBackups
TC
In-app purchases
ComBackups
No in-app purchases
TC
No in-app purchases
Questions
Is ComBackups free?
Is TC free?
Which has better reviews, ComBackups or TC?
Do ComBackups or TC have ads?
Which is updated more often, ComBackups or TC?
Other comparisons
