# Scientific CalcX vs EntryHub

The clearest difference is price: EntryHub at Free against Scientific CalcX's $1.99. EntryHub also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 16.0). On update cadence, ads and device support there is nothing between them.

EntryHub is free to download; Scientific CalcX costs $1.99 up front. Scientific CalcX sells 1 one-off in-app purchase. EntryHub asks for nothing beyond the download.

Scientific CalcX ships an update every 8 months, EntryHub every 6 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Scientific CalcX | EntryHub |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Size | 2 MB | 17 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Lake Snow Technology Co., Ltd.](https://appshunter.io/developer/1439688130) | [Konstantin Voronov](https://appshunter.io/developer/1352723979) |

## What reviewers say

### Scientific CalcX

[App page](https://appshunter.io/ios/app/scientific-calcx/id1439688401)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scientific CalcX Premium | $3.99 | one-time |


### EntryHub

[App page](https://appshunter.io/ios/app/entryhub/id1546468887)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scientific CalcX free?

Scientific CalcX costs $1.99, and also offers in-app purchases.

### Is EntryHub free?

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

### Do Scientific CalcX or EntryHub have ads?

Neither Scientific CalcX nor EntryHub shows ads.

### Which is updated more often, Scientific CalcX or EntryHub?

Scientific CalcX ships an update every 8 months, and EntryHub every 6 months. Most recently, Scientific CalcX was updated on October 12, 2026 and EntryHub on October 16, 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.*