# Molecular Weight Calculator vs TC

The clearest difference is update cadence: TC at every 3 months against Molecular Weight Calculator's every 29 months. TC also leads on price ($1.99 vs $2.99). Molecular Weight Calculator's advantage is ratings volume (3 vs 1). On rating, ads, in-app purchases and monetization model there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Molecular Weight Calculator against 5.0 for TC. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Molecular Weight Calculator ships an update every 29 months, TC every 3 months. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Molecular Weight Calculator | TC |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/molecular-weight-calculator/id1444836038/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 12 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [立娜 王](https://appshunter.io/developer/1761096632) |

## What reviewers say

### Molecular Weight Calculator

[App page](https://appshunter.io/ios/app/molecular-weight-calculator/id1444836038)

This tool calculates the average molecular weight of molecules using their chemical formulas. It offers instant results, supports high precision, and is optimized for everyday use on iOS devices. The app prioritizes user privacy and is ad-free.

**Highlights:** Instant molecular weight calculation, Copy results to other apps, Includes formula references, Supports up to 16 decimal places, Works on iPhone and iPad, Ad-free and privacy-focused

**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 Molecular Weight Calculator free?

Molecular Weight Calculator costs $2.99, with no in-app purchases.

### Is TC free?

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

### Which has better reviews, Molecular Weight Calculator or TC?

Molecular Weight Calculator and TC are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Molecular Weight Calculator or TC have ads?

Neither Molecular Weight Calculator nor TC shows ads.

### Which is updated more often, Molecular Weight Calculator or TC?

Molecular Weight Calculator ships an update every 29 months, and TC every 3 months. Most recently, Molecular Weight Calculator was updated on October 15, 2026 and TC on October 19, 2026.

---

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