# Scientific CalcX vs Pentatronics 1000

The clearest difference is price: Pentatronics 1000 at Free against Scientific CalcX's $1.99. Pentatronics 1000 also leads on in-app purchases (none vs 1) and update cadence (fortnightly vs every 8 months). On ads and device support there is nothing between them.

Pentatronics 1000 is free to download; Scientific CalcX costs $1.99 up front. Scientific CalcX sells 1 one-off in-app purchase. Pentatronics 1000 asks for nothing beyond the download.

Scientific CalcX ships an update every 8 months, Pentatronics 1000 fortnightly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Scientific CalcX | Pentatronics 1000 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pentatronics-1000/id1506502614/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 2 MB | 1 MB |
| Requires iOS | 16.0 | **13.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Lake Snow Technology Co., Ltd.](https://appshunter.io/developer/1439688130) | [Paul Novaes](https://appshunter.io/developer/597527233) |

## 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 |


### Pentatronics 1000

[App page](https://appshunter.io/ios/app/pentatronics-1000/id1506502614)

Experience a faithful re-creation of a legendary gaming calculator from a bygone era. This app brings back the iconic "READY" message and the novelty of having a game on a calculator, blending math with fun, style, and humor.

**Highlights:** Faithful re-creation of a legendary gaming calculator, Iconic "READY" message, Calculator with built-in games, Emphasis on fun, style, and humor, Brings a rare collectible to mobile

**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 Pentatronics 1000 free?

Pentatronics 1000 is free to download, with no in-app purchases.

### Do Scientific CalcX or Pentatronics 1000 have ads?

Neither Scientific CalcX nor Pentatronics 1000 shows ads.

### Which is updated more often, Scientific CalcX or Pentatronics 1000?

Scientific CalcX ships an update every 8 months, and Pentatronics 1000 fortnightly. Most recently, Scientific CalcX was updated on November 2, 2026 and Pentatronics 1000 on November 7, 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.*