# FP Scientific&Basic Calculator vs calculator.x

The clearest difference is update cadence: calculator.x at every 2 days against FP Scientific&Basic Calculator's every 2 weeks. FP Scientific&Basic Calculator's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FP Scientific&Basic Calculator ships an update every 2 weeks, calculator.x every 2 days. The most recent releases landed on October 22, 2026 and December 22, 2025 respectively.

## The numbers

| Metric | FP Scientific&Basic Calculator | calculator.x |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (655 ratings)](https://appshunter.io/ios/app/fp-scientific-and-basic-calculator/id1556021625/reviews)** | — |
| Number of ratings | **655** | — |
| Positive reviews | 68.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 92 MB | 2 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ofly Tech Co., Ltd.](https://appshunter.io/developer/1556021627) | [BNDDIGITAL LIMITED](https://appshunter.io/developer/1643546055) |

## What reviewers say

### FP Scientific&Basic Calculator

[App page](https://appshunter.io/ios/app/fp-scientific-and-basic-calculator/id1556021625)

This app offers a versatile calculator with basic arithmetic, currency, and unit conversion capabilities. It features customizable interfaces, including dark mode, and supports split-screen functionality on iPads. Users can also track calculation history and split bills.

**Highlights:** Basic and arithmetic calculations, Currency conversion (160 currencies), Unit conversion (10 units), Dark and light mode, Split-screen computing, Calculation history, Bill splitting

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

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent app
- 👍 Great calculator
- 👍 User-friendly interface
- 👍 Comprehensive features
- 👍 Convenient currency converter

**What reviewers complain about**

- 🐛 Frozen currency exchange rates
- 🔍 Excessive ads and pop-ups
- ⏱️ Slow app startup
- 🔒 Lack of ad-free purchase option

**Reported bugs**

- Currency converter not working
- Crashes and freezes
- Incompatibility with older devices

**Requested features**

- Add tax calculation feature
- Implement widget support
- Provide more Christmas themes
- Fix currency converter issues


### calculator.x

[App page](https://appshunter.io/ios/app/calculatorx/id1643546053)

**In-app purchases:** none


## Frequently asked questions

### Is FP Scientific&Basic Calculator free?

FP Scientific&Basic Calculator is free to download, with no in-app purchases.

### Is calculator.x free?

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

### Do FP Scientific&Basic Calculator or calculator.x have ads?

Neither FP Scientific&Basic Calculator nor calculator.x shows ads.

### Which is updated more often, FP Scientific&Basic Calculator or calculator.x?

FP Scientific&Basic Calculator ships an update every 2 weeks, and calculator.x every 2 days. Most recently, FP Scientific&Basic Calculator was updated on October 22, 2026 and calculator.x on December 22, 2025.

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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.*