# Molar Mass Calculator Pro vs TC

The clearest difference is update cadence: TC at every 3 months against Molar Mass Calculator Pro's every 17 months. TC also leads on price ($1.99 vs $2.99) and iOS requirement (13.0 vs 15.4). Molar Mass Calculator Pro's advantage is ratings volume (6 vs 1). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Molar Mass Calculator Pro costs $2.99 and TC $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TC holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Molar Mass Calculator Pro has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Molar Mass Calculator Pro ships an update every 17 months, TC every 3 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Molar Mass Calculator Pro | TC |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/molar-mass-calculator-pro/id1496975776/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Size | 7 MB | 12 MB |
| Requires iOS | 15.4 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pylyp Chernov](https://appshunter.io/developer/1456652778) | [立娜 王](https://appshunter.io/developer/1761096632) |

## What reviewers say

### Molar Mass Calculator Pro

[App page](https://appshunter.io/ios/app/molar-mass-calculator-pro/id1496975776)

Easily calculate the molar mass of chemical compounds by simply entering the formula. This app offers instant, efficient, and intuitive calculations with a beautiful user interface, making it ideal for students.

**Highlights:** Molar mass calculation, Formula input, Instant results, Efficient processing, Simple interface, Beautiful UI

**Features:** macOS Compatibility, Apple Watch app, 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 Molar Mass Calculator Pro free?

Molar Mass Calculator Pro costs $2.99, with no in-app purchases.

### Is TC free?

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

### Which has better reviews, Molar Mass Calculator Pro or TC?

TC is rated higher. Molar Mass Calculator Pro averages 4.8 out of 5 from 6 ratings, while TC averages 5.0 from 1 ratings.

### Do Molar Mass Calculator Pro or TC have ads?

Neither Molar Mass Calculator Pro nor TC shows ads.

### Which is updated more often, Molar Mass Calculator Pro or TC?

Molar Mass Calculator Pro ships an update every 17 months, and TC every 3 months. Most recently, Molar Mass Calculator Pro was updated on October 24, 2026 and TC on October 27, 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.*