Comparison

LTH Discover vs TC

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LTH Discover

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LTH Discover from LTH Electronics provides an easy and intuitive means of wirelessly connecting, via Bluetooth, to LTH Electronics’ range of liquid process control instrumentation. Features include: Live Discovery Screen – Allows for a quick overview of any nearby instruments, showing their current readings and status. Measurement Screen – Shows live measurement readings of the process parameter along with instrument output values and status. Configuration Menus – Easily set up the instrument’s measurement and control parameters. Features a secure password system that allows for viewing while not allowing alterations unless the instrument’s unique password is known. Calibration – Intuitive system that guides the user through each step of their sensor’s calibration procedure. Errors – Detailed error system with inbuilt guides to help the user solve instrument problems. Save and Restore – Experience faster commissioning times with our advanced save and restore system, designed to effortlessly duplicate instrument setups. Firmware Upgrade – Upgrade connected instruments' firmware for performance and feature enhancements. List of supported devices • DCU18 • DEU18 • DMU18 • DOU18 • DPU18 • DTU18

About

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.

Highlights
  • Thermocouple and RTD conversion
  • Supports multiple sensor types
  • Offline functionality
  • Temperature recording and charting
  • Export data to Excel
  • Intuitive user interface
Features
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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

LTH Discover4 screens
TC4 screens

Verdict

The call

The clearest difference is price: LTH Discover at Free against TC's $1.99. On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

LTH Discover is free to download; TC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

Scorecard1 real difference · 9 level
LTH Discover versus TC: the parameters behind the verdict, then further details
ParameterLTH DiscoverTC
PriceFree — better$1.99
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.213.0 — better
Further details — not scored
Size44 MB12 MB
Age rating4+4+
DeveloperL.T.H. Electronics Limited立娜 王

In-app purchases

None

LTH Discover

No in-app purchases

None

TC

No in-app purchases

Questions

Is LTH Discover free?
LTH Discover is free to download, with no in-app purchases.
Is TC free?
TC costs $1.99, with no in-app purchases.
Do LTH Discover or TC have ads?
Neither LTH Discover nor TC shows ads.
Which is updated more often, LTH Discover or TC?
LTH Discover ships an update every 3 months, and TC every 3 months. Most recently, LTH Discover was updated on September 8, 2026 and TC on September 15, 2026.

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