# Pressure Units Converter vs TC

The clearest difference is update cadence: TC at every 3 months against Pressure Units Converter's every 16 months. On price, ads, in-app purchases and device support there is nothing between them.

Pressure Units Converter costs $1.99 and TC $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pressure Units Converter ships an update every 16 months, TC every 3 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Pressure Units Converter | TC |
| --- | --- | --- |
| Price | $1.99 | $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 16 months | **Every 3 months** |
| Monetization | — | Paid |
| Size | 8 MB | 12 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [立娜 王](https://appshunter.io/developer/1761096632) |

## What reviewers say

### Pressure Units Converter

[App page](https://appshunter.io/ios/app/pressure-units-converter/id1452151266)

**Features:** macOS Compatibility, 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 Pressure Units Converter free?

Pressure Units Converter costs $1.99, with no in-app purchases.

### Is TC free?

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

### Do Pressure Units Converter or TC have ads?

Neither Pressure Units Converter nor TC shows ads.

### Which is updated more often, Pressure Units Converter or TC?

Pressure Units Converter ships an update every 16 months, and TC every 3 months. Most recently, Pressure Units Converter was updated on November 2, 2026 and TC on November 4, 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.*