BOLLbox vs TC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BOLLbox
Read full descriptionHide full description
Quick and simple visualization of filter operating data, change of filter settings and interaction with the filter. - Visualization of historical filter operating data - Changing control settings - Triggering of flushing - Triggering of power flushing - Visualization of error messages - Contact and support - Sending operating data - Update control box software
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
Read full descriptionHide full description
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: BOLLbox at Free against TC's $1.99. TC's advantage is update cadence (every 3 months vs every 7 months) and iOS requirement (13.0 vs 15.6). 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
BOLLbox is free to download; TC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BOLLbox ships an update every 7 months, TC every 3 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.
| Parameter | BOLLbox | TC |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | BOLL & KIRCH Filterbau GmbH | 立娜 王 |
In-app purchases
BOLLbox
No in-app purchases
TC
No in-app purchases
