# TC vs I&C Tech Tools

The clearest difference is price: I&C Tech Tools at Free against TC's $1.99. I&C Tech Tools also leads on update cadence (every 4 days vs every 3 months). TC's advantage is rating (5.0 vs 1.0) and in-app purchases (none vs 2). On ratings volume, ads and device support there is nothing between them.

I&C Tech Tools is free to download; TC costs $1.99 up front. I&C Tech Tools sells 2 in-app purchases, starting at $4.99 per month. TC asks for nothing beyond the download.

TC holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

TC ships an update every 3 months, I&C Tech Tools every 4 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | TC | I&C Tech Tools |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/i-and-c-tech-tools/id6756155332/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 12 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [立娜 王](https://appshunter.io/developer/1761096632) | [LONNIE DALE RAWLS](https://appshunter.io/developer/1858762647) |

## What reviewers say

### 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


### I&C Tech Tools

[App page](https://appshunter.io/ios/app/i-and-c-tech-tools/id6756155332)

This app offers essential calculation tools for instrumentation and control technicians and engineers. It provides free access to basic tools, with advanced calculators available through a one-time in-app purchase or subscription.

**Highlights:** Basic instrumentation calculations, Free access to selected tools, Advanced calculators via in-app purchase, Practical reference tools, Ongoing improvements and updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I&C Tech Tools - Monthly Access | $4.99 | per month |
| I&C Tech Tools - Yearly | $49.99 | per year |


## Frequently asked questions

### Is TC free?

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

### Is I&C Tech Tools free?

I&C Tech Tools is free to download, with in-app purchases available.

### Which has better reviews, TC or I&C Tech Tools?

TC is rated higher. TC averages 5.0 out of 5 from 1 ratings, while I&C Tech Tools averages 1.0 from 1 ratings.

### Do TC or I&C Tech Tools have ads?

Neither TC nor I&C Tech Tools shows ads.

### Which is updated more often, TC or I&C Tech Tools?

TC ships an update every 3 months, and I&C Tech Tools every 4 days. Most recently, TC was updated on October 2, 2026 and I&C Tech Tools on October 3, 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.*