Big Button Calculator Pro Lite vs Culligan Link
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big Button Calculator Pro Lite
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.
- Large buttons
- Dual-line display
- 18 color themes
- Multi-line input
- Gesture controls
- VoiceOver accessibility
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This is THE BEST calculator for iOS with big buttons and colorful backgrounds! This version is ad supported. ・Dual-line display - shows the input and result at the same time ・Percentage and backspace button ・18 color themes ・Multi-line input for really long equations ・Automatic scientific formatting ・VoiceOver accessibility ・Split View Gestures ・Swipe left on the display to backspace ・Swipe right on the display to clear ・Tap & hold on the result to copy ・Tap & hold on the input to move the cursor, copy, paste Customize ・Color Theme ・Sound URL Scheme: bigcalculatorpro://
Culligan Link
Easily manage and monitor your connected appliances remotely. Control multiple devices simultaneously and manage various projects with a simple and quick connection process.
- Remote control and monitoring
- Simultaneous multi-device control
- Project management
- Easy device connection
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Culligan Link, easy manage culligan devices 1. Remote control: control & monitor appliances from anywhere 2. Simultaneously control: control multiple devices with one App 3. Device Management: Manage multiple projects conveniently 5. Easy connection: easily and quickly connect App to devices
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Big Button Calculator Pro Lite | Culligan Link |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (14K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 82.7% of reviews | — |
| Number of ratings | 14K — better | 1 |
| Update frequency | Every 3 months — better | Every 11 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.2 | 11.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 163 MB |
| Age rating | 4+ | 4+ |
| Developer | Cider Software LLC | Culligan Water Treatment Technology (Shanghai) Co., Ltd. |
Customer experience
Big Button Calculator Pro Lite
Culligan Link
Bugs and requests
Big Button Calculator Pro Lite
Reported bugs
2 issues- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results
Requested features
4 requests- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version
Culligan Link
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Big Button Calculator Pro Lite
No in-app purchases
Culligan Link
No in-app purchases
Questions
Is Big Button Calculator Pro Lite free?
Is Culligan Link free?
Which has better reviews, Big Button Calculator Pro Lite or Culligan Link?
Do Big Button Calculator Pro Lite or Culligan Link have ads?
Which is updated more often, Big Button Calculator Pro Lite or Culligan Link?
Other comparisons
