# GUTCalc Physics Unit Converter vs Sentiment

The clearest difference is in-app purchases: Sentiment at none against GUTCalc Physics Unit Converter's 1. Sentiment also leads on update cadence (fortnightly vs every 4 months). GUTCalc Physics Unit Converter's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.8.3). On price and device support there is nothing between them.

Both are free to download. GUTCalc Physics Unit Converter sells 1 one-off in-app purchase. Sentiment asks for nothing beyond the download.

GUTCalc Physics Unit Converter ships an update every 4 months, Sentiment fortnightly. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | GUTCalc Physics Unit Converter | Sentiment |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/gutcalc-physics-unit-converter/id1526914857/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 37 MB |
| Requires iOS | **13.0** | 15.8.3 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timothy Wiser](https://appshunter.io/developer/1526914859) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### GUTCalc Physics Unit Converter

[App page](https://appshunter.io/ios/app/gutcalc-physics-unit-converter/id1526914857)

This calculator handles complex physics calculations with units. It supports SI, natural, and CGS units, physical constants, and functions. It automatically converts units and flags algebraic errors, with an option to upgrade for advanced organization and syncing features.

**Highlights:** SI, Natural, and CGS unit modes, Automatic unit conversion, Physical constants and functions, Implied multiplication, Custom keyboards, Unit checking for algebraic errors, Share and save results

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GUTCalc Pro | $2.99 | one-time |


### Sentiment

[App page](https://appshunter.io/ios/app/sentiment-analysis/id6673886641)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GUTCalc Physics Unit Converter free?

GUTCalc Physics Unit Converter is free to download, with in-app purchases available.

### Is Sentiment free?

Sentiment is free to download, with no in-app purchases.

### Do GUTCalc Physics Unit Converter or Sentiment have ads?

Sentiment shows ads; GUTCalc Physics Unit Converter does not.

### Which is updated more often, GUTCalc Physics Unit Converter or Sentiment?

GUTCalc Physics Unit Converter ships an update every 4 months, and Sentiment fortnightly. Most recently, GUTCalc Physics Unit Converter was updated on October 16, 2026 and Sentiment on October 9, 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.*