# Big Button Calculator Pro Lite vs Culligan Link

The clearest difference is ads: Culligan Link at none against Big Button Calculator Pro Lite's shown. Culligan Link also leads on rating (5.0 vs 4.7) and monetization model (free vs ad-supported). Big Button Calculator Pro Lite's advantage is ratings volume (14K vs 1) and update cadence (every 3 months vs every 11 months). On price, 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.

Culligan Link holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Big Button Calculator Pro Lite has 14K ratings behind it against 1, so its average is the more settled of the two.

Big Button Calculator Pro Lite ships an update every 3 months, Culligan Link every 11 months. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Big Button Calculator Pro Lite | Culligan Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (14K ratings)](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/culligan-link/id6449174033/reviews)** |
| Number of ratings | **14K** | 1 |
| Positive reviews | 82.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Ad-supported | **Free** |
| Size | 45 MB | 163 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cider Software LLC](https://appshunter.io/developer/465180756) | [Culligan Water Treatment Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1445345492) |

## What reviewers say

### Big Button Calculator Pro Lite

[App page](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808)

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

**Highlights:** Large buttons, Dual-line display, 18 color themes, Multi-line input, Gesture controls, VoiceOver accessibility

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Customizable backgrounds
- 🚀 Accurate calculations
- 👍 Large, clear numbers
- 👍 Helpful for homeschooling

**What reviewers complain about**

- 🐛 Ads can be intrusive
- 🐛 Ads in foreign languages
- 🐛 Ads take time to close
- 🔋 High battery consumption due to ads

**Reported bugs**

- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results

**Requested features**

- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version


### 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 Big Button Calculator Pro Lite free?

Big Button Calculator Pro Lite is free to download, with no in-app purchases.

### Is Culligan Link free?

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

### Which has better reviews, Big Button Calculator Pro Lite or Culligan Link?

Culligan Link is rated higher. Big Button Calculator Pro Lite averages 4.7 out of 5 from 14K ratings, while Culligan Link averages 5.0 from 1 ratings.

### Do Big Button Calculator Pro Lite or Culligan Link have ads?

Big Button Calculator Pro Lite shows ads; Culligan Link does not.

### Which is updated more often, Big Button Calculator Pro Lite or Culligan Link?

Big Button Calculator Pro Lite ships an update every 3 months, and Culligan Link every 11 months. Most recently, Big Button Calculator Pro Lite was updated on October 19, 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.*