# Scientific++ vs Culligan Link

The clearest difference is price: Culligan Link at Free against Scientific++'s $0.99. Culligan Link also leads on rating (5.0 vs 4.5) and iOS requirement (11.0 vs 15.6). Scientific++'s advantage is ratings volume (61 vs 1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Culligan Link is free to download; Scientific++ costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Culligan Link holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Scientific++ has 61 ratings behind it against 1, so its average is the more settled of the two.

Scientific++ ships an update every 6 months, Culligan Link every 11 months. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Scientific++ | Culligan Link |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.5 (61 ratings)](https://appshunter.io/ios/app/scientific-plus-plus/id468657943/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/culligan-link/id6449174033/reviews)** |
| Number of ratings | **61** | 1 |
| Positive reviews | 89.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 11 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 163 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Culligan Water Treatment Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1445345492) |

## What reviewers say

### Scientific++

[App page](https://appshunter.io/ios/app/scientific-plus-plus/id468657943)

This app is a powerful scientific calculator with advanced features like fraction manipulation, angle conversions, and equation solvers. It also includes a dice roller and a handy backspace function for easy editing. Additional geometry calculators are available via in-app purchase.

**Highlights:** Expression history and input display, Fraction manipulation and conversion, Degrees, minutes, seconds angle conversion, Permutation, combination, LCM, GCD, prime factorization, Quadratic and linear equation solver, Coordinate conversion (rectangular/polar), Physical constants list, Dice roller

**Features:** Vision Pro support

**In-app purchases:** none


### Culligan Link

[App page](https://appshunter.io/ios/app/culligan-link/id6449174033)

Easily manage and monitor your connected appliances remotely. Control multiple devices simultaneously and manage various projects with a simple and quick connection process.

**Highlights:** Remote control and monitoring, Simultaneous multi-device control, Project management, Easy device connection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scientific++ free?

Scientific++ costs $0.99, with no in-app purchases.

### Is Culligan Link free?

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

### Which has better reviews, Scientific++ or Culligan Link?

Culligan Link is rated higher. Scientific++ averages 4.5 out of 5 from 61 ratings, while Culligan Link averages 5.0 from 1 ratings.

### Do Scientific++ or Culligan Link have ads?

Neither Scientific++ nor Culligan Link shows ads.

### Which is updated more often, Scientific++ or Culligan Link?

Scientific++ ships an update every 6 months, and Culligan Link every 11 months. Most recently, Scientific++ was updated on October 14, 2026 and Culligan Link on October 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.*