Trig Instruments Toolbox vs TC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trig Instruments Toolbox
This utility app provides a collection of essential field tools, including a ratio to angle converter, inclinometer, tally counter, and protractor. It leverages your device's sensors for accurate estimations and calculations, reducing the need to carry multiple physical instruments.
- Ratio to Angle converter
- Inclinometer
- Tally counter
- Protractor
- Uses device sensors for accuracy
- New free tools added regularly
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Each tool is designed to be useful in the field, so you don't need to bring a pile of equipment and notes with you to do estimations and calculations. Taking advantage of your device's built in gyro, compass and camera, to give the most accurate results. The Trig Tool Box contains: • Ratio to Angle converter • Inclinometer • Tally counter • Protractor With more free tools being added all the time. Download now to keep this tool box in your back pocket - you never know when they will come in handy.
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 review sentiment: TC at 100% against Trig Instruments Toolbox's 50%. TC also leads on rating (5.0 vs 2.6) and update cadence (every 3 months vs every 27 months). Trig Instruments Toolbox's advantage is price (Free vs $1.99) and ratings volume (5 vs 1). On 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
Trig Instruments Toolbox is free to download; TC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
TC holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: Trig Instruments Toolbox has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Trig Instruments Toolbox's written reviews are positive against 100% of TC's.
Trig Instruments Toolbox ships an update every 27 months, TC every 3 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | Trig Instruments Toolbox | TC |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 2.6 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 27 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Stevens Marketing Limited | 立娜 王 |
Customer experience
Trig Instruments Toolbox
TC
In-app purchases
Trig Instruments Toolbox
No in-app purchases
TC
No in-app purchases
Questions
Is Trig Instruments Toolbox free?
Is TC free?
Which has better reviews, Trig Instruments Toolbox or TC?
Do Trig Instruments Toolbox or TC have ads?
Which is updated more often, Trig Instruments Toolbox or TC?
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