# Natural Scientific Calculator vs TWC Performance Platform

The clearest difference is in-app purchases: TWC Performance Platform at none against Natural Scientific Calculator's 3. Natural Scientific Calculator's advantage is update cadence (weekly vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Natural Scientific Calculator sells 3 in-app purchases, starting at $0.49 per month. TWC Performance Platform asks for nothing beyond the download.

Natural Scientific Calculator ships an update weekly, TWC Performance Platform every 9 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Natural Scientific Calculator | TWC Performance Platform |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (95 ratings)](https://appshunter.io/ios/app/natural-scientific-calculator/id1221737584/reviews)** | — |
| Number of ratings | **95** | — |
| Positive reviews | 66.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 months |
| Monetization | Freemium | — |
| Size | 83 MB | 21 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stultus Studios Pty Ltd](https://appshunter.io/developer/1221737583) | [Otuvy, Inc.](https://appshunter.io/developer/503956708) |

## What reviewers say

### Natural Scientific Calculator

[App page](https://appshunter.io/ios/app/natural-scientific-calculator/id1221737584)

This app offers a natural way to input mathematical equations, similar to writing them on paper. It features intuitive editing with swipe gestures and pinch-to-zoom for complex expressions. Save frequently used equations for quick access.

**Highlights:** Natural input for equations, Swipe to edit and pinch to zoom, History and favorites for equations, Fractions, roots, and exponents, Radians and degrees support, Decimal to fraction conversion

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NSC Plus Monthly Subscription | $0.49 | per month |
| NSC Plus Annual Subscription | $3.99 | per year |
| NSC Plus | $7.99 | one-time |

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 📐 Natural display with equation editing
- 🚀 Fast and efficient calculations
- 🎓 Excellent for students and engineers
- ✨ Clean, simple design compared to competitors

**What reviewers complain about**

- 🐛 Frequent crashes and freezing
- ❌ Incorrect trigonometric calculations
- 📵 Excessive pop-up notifications requesting reviews
- 💰 Expensive premium version
- 📺 Intrusive and loud advertisements

**Reported bugs**

- Math error on all calculations (widespread issue from late 2022-2023)
- App freezes during startup or tutorial
- Crashes during complex calculations
- Incorrect inverse trigonometric function results
- Incorrect sine, cosine, tangent calculations

**Requested features**

- Dark mode or dark theme option
- Physical keyboard support
- Copy and paste functionality
- History or ticker of previous calculations
- Double and triple zero buttons (00, 000)


### TWC Performance Platform

[App page](https://appshunter.io/ios/app/twc-performance-platform/id1382330482)

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

**In-app purchases:** none


## Frequently asked questions

### Is Natural Scientific Calculator free?

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

### Is TWC Performance Platform free?

TWC Performance Platform is free to download, with no in-app purchases.

### Do Natural Scientific Calculator or TWC Performance Platform have ads?

Neither Natural Scientific Calculator nor TWC Performance Platform shows ads.

### Which is updated more often, Natural Scientific Calculator or TWC Performance Platform?

Natural Scientific Calculator ships an update weekly, and TWC Performance Platform every 9 months. Most recently, Natural Scientific Calculator was updated on November 2, 2026 and TWC Performance Platform on November 2, 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.*