# Freestyle Calculator vs MHT Viewer

The clearest difference is update cadence: Freestyle Calculator at every 3 days against MHT Viewer's every 11 days. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Freestyle Calculator sells 6 in-app purchases, starting at $0.99 per month and MHT Viewer sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Freestyle Calculator against 5.0 for MHT Viewer. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Freestyle Calculator ships an update every 3 days, MHT Viewer every 11 days. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Freestyle Calculator | MHT Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/freestyle-calculator-sci-and-fx/id6760956908/reviews) | [5.0 (9 ratings)](https://appshunter.io/ios/app/mht-viewer-mhtml-reader/id6761450357/reviews) |
| Number of ratings | 8 | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 11 days |
| Monetization | Freemium | Freemium |
| Size | 26 MB | 16 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [锋 邹](https://appshunter.io/developer/1863829052) | [延平 陈](https://appshunter.io/developer/1833168926) |

## What reviewers say

### Freestyle Calculator

[App page](https://appshunter.io/ios/app/freestyle-calculator-sci-and-fx/id6760956908)

This app offers real-time calculation previews and flexible expression editing, eliminating the need for an equals button. It saves all calculations with a searchable history and includes unit and currency conversion. Advanced features allow for custom keyboard layouts, themes, and cloud synchronization.

**Highlights:** Real-time calculation preview, Flexible expression editing, Searchable calculation history, Unit and currency conversion, Customizable keyboard layouts, Cloud synchronization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcStudio Pro Monthly | $0.99 | per month |
| CalcStudio Pro Annual | $3.99 | per year |
| Small Tip | $0.99 | one-time |
| Medium Tip | $3.99 | one-time |
| CalcStudio Pro Lifetime | $7.99 | one-time |
| Large Tip | $9.99 | one-time |


### MHT Viewer

[App page](https://appshunter.io/ios/app/mht-viewer-mhtml-reader/id6761450357)

Easily open and read MHT and MHTML web archive files offline on your iPhone and iPad. Convert these files to HTML format while preserving layout and images. Access saved web pages quickly and securely on your device.

**Highlights:** Open MHT and MHTML files, Accurate web page rendering, Offline access, Convert MHT to HTML, Share or export content, Private and secure file handling

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MHT Viewer Pro Weekly | $3.99 | per 7 days |
| MHT Viewer Pro Monthly | $5.99 | per month |
| MHT Viewer Pro Yearly | $9.99 | per year |
| MHT Viewer Premium | $19.99 | one-time |


## Frequently asked questions

### Is Freestyle Calculator free?

Freestyle Calculator is free to download, with in-app purchases available.

### Is MHT Viewer free?

MHT Viewer is free to download, with in-app purchases available.

### Which has better reviews, Freestyle Calculator or MHT Viewer?

Freestyle Calculator and MHT Viewer are both rated 5.0 out of 5 on the App Store, from 8 and 9 ratings respectively.

### Do Freestyle Calculator or MHT Viewer have ads?

Neither Freestyle Calculator nor MHT Viewer shows ads.

### Which is updated more often, Freestyle Calculator or MHT Viewer?

Freestyle Calculator ships an update every 3 days, and MHT Viewer every 11 days. Most recently, Freestyle Calculator was updated on September 19, 2026 and MHT Viewer on September 18, 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.*