Comparison

TC vs SevenFish

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

Head to head
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
Read 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.

About

SevenFish

Features
Read full description

This app works with a wireless sonar transducer, turning your mobile device into a professional underwater detection system. Whether you’re shore fishing, boating, or ice fishing, you can access real-time underwater data to enhance your fishing efficiency and experience. Key Features: Real-Time Sonar Imaging Clearly displays underwater structures, fish location and size with dynamic updates, helping you accurately identify promising fishing spots. Water Depth & Temperature Monitoring Precisely measures current water depth and temperature with real-time updates, giving you instant insight into changing water conditions. Fish Detection & Display Smartly identifies fish and intuitively shows their size and position, keeping you fully informed of fish activity. Fishing Spot Map Saving Save your favorite fishing spots and mark them on the map for easy navigation and quick return on future trips. 100-Level Sensitivity Adjustment Fine-tune sensitivity from 1 to 100 levels to adapt to different water clarity and depth conditions, ensuring stable and reliable sonar signals. Elegant UI Design Clean, intuitive interface with a dark theme suitable for outdoor use, reducing eye strain during long fishing sessions. This app is an essential tool for fishing enthusiasts, professional anglers, and underwater detection users. Paired with a compatible wireless sonar transducer, you can easily build your own portable underwater detection system.

Screenshots

TC4 screens
SevenFish4 screens

Verdict

The call

The clearest difference is price: SevenFish at Free against TC's $1.99. TC's advantage is 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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard2 real differences · 8 level
TC versus SevenFish: the parameters behind the verdict, then further details
ParameterTCSevenFish
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size12 MB32 MB
Age rating4+4+
Developer立娜 王定敢 刘

In-app purchases

None

TC

No in-app purchases

None

SevenFish

No in-app purchases

Questions

Is TC free?
TC costs $1.99, with no in-app purchases.
Is SevenFish free?
SevenFish is free to download, with no in-app purchases.
Do TC or SevenFish have ads?
Neither TC nor SevenFish shows ads.

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