Calc4Key vs Calculator Widget
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc4Key
Perform calculations directly within your keyboard, eliminating the need to switch apps or copy-paste results. This utility allows you to calculate anywhere you type, enhancing productivity and convenience.
- Calculator on keyboard
- Calculate anywhere
- No app switching
- No copy-paste results
- Easy keyboard selection
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Use calculator directly on keyboard anywhere, anytime. No switch apps, no copy and paste results anymore! You must enable the keyboard under system settings, then select it in your keyboard, using the globe button. 1. Open the settings app 2. Go General > Keyboard > Keyboards > Add New Keyboard 3. Add Calc4Key 4. Start typing in any app 5. Press "globe" icon to switch to the Key4Cal keyboard 6. Enjoy
Calculator Widget
Access a powerful calculator directly from your home screen or control center. Perform quick calculations without needing to open a separate application, streamlining your daily tasks.
- Interactive home screen widget
- iOS 18 Control Center widget
- StandBy mode calculator
- Calculation history
- Smart stack widget organization
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Experience the ultimate convenience of a calculator right at your fingertips with Calcullo - Calculator Widget! Say goodbye to the hassle of opening a separate app every time you need to crunch numbers. With Calcullo, you can access a powerful calculator directly from your home screen or control center, making quick calculations a breeze. Key Features: • Interactive Widget Perform calculations with ease. No need to open a separate app—simply tap and calculate directly from your home screen. • Control Center Widget Swipe and calculate directly from your iOS 18 Control Center • StandBy Mode Transform your iPhone into a cutting-edge smart display with a mind-blowing calculator. • History Track your previous calculations. • Smart Stack Explore several widgets in one place. Download Calcullo now and simplify your daily calculations with a widget that's always at your fingertips!
Screenshots
Verdict
The clearest difference is update cadence: Calc4Key at daily against Calculator Widget's every 3 days. Calc4Key also leads on ratings volume (821 vs 122) and iOS requirement (11.0 vs 17.0). On price, rating, review sentiment and ads 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
Calc4Key costs $0.99 and Calculator Widget $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for Calc4Key against 4.6 for Calculator Widget. That said, the two scores are not equally well evidenced: Calc4Key has 821 ratings behind it against 122, so its average is the more settled of the two. Written reviews are what separate them: 63% of Calc4Key's written reviews are positive against 59% of Calculator Widget's.
Calc4Key ships an update daily, Calculator Widget every 3 days. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.
| Parameter | Calc4Key | Calculator Widget |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.6 (821 ratings) | 4.6 (122 ratings) |
| Positive reviews | 62.5% of reviews — better | 59.4% of reviews |
| Number of ratings | 821 — better | 122 |
| Update frequency | Daily — better | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Khang Le | Supagarn Pattananuchart |
Customer experience
Calc4Key
Calculator Widget
In-app purchases
Calc4Key
No in-app purchases
Calculator Widget
No in-app purchases
Questions
Is Calc4Key free?
Is Calculator Widget free?
Which has better reviews, Calc4Key or Calculator Widget?
Do Calc4Key or Calculator Widget have ads?
Which is updated more often, Calc4Key or Calculator Widget?
Other comparisons
