# Electronic Circuits Calc Pro vs TC

The clearest difference is price: TC at $1.99 against Electronic Circuits Calc Pro's $4.99. TC also leads on iOS requirement (13.0 vs 16.0). Electronic Circuits Calc Pro's advantage is chart position (#193 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

Electronic Circuits Calc Pro costs $4.99 and TC $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electronic Circuits Calc Pro ships an update every 6 weeks, TC every 3 months. The most recent releases landed on September 16, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Electronic Circuits Calc Pro | TC |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | — | Paid |
| Best chart rank | **#193** | — |
| Size | 19 MB | 12 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [立娜 王](https://appshunter.io/developer/1761096632) |

## What reviewers say

### Electronic Circuits Calc Pro

[App page](https://appshunter.io/ios/app/electronic-circuits-calc-pro/id1658493129)

**Currently charting:** #193 Top Paid · Utilities (US App Store)

**Features:** Vision Pro support

**In-app purchases:** none


### TC

[App page](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Electronic Circuits Calc Pro free?

Electronic Circuits Calc Pro costs $4.99, with no in-app purchases.

### Is TC free?

TC costs $1.99, with no in-app purchases.

### Do Electronic Circuits Calc Pro or TC have ads?

Neither Electronic Circuits Calc Pro nor TC shows ads.

### Which is updated more often, Electronic Circuits Calc Pro or TC?

Electronic Circuits Calc Pro ships an update every 6 weeks, and TC every 3 months. Most recently, Electronic Circuits Calc Pro was updated on September 16, 2026 and TC on September 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*