Calculator! vs Calculator HD Pro Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator!
This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.
- Standard and scientific calculator modes
- Customizable look (iPad only)
- Portrait and landscape orientation
- Notes and drawing tab
- Calculation history
- AirPrint and email support
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Calculator! is an easy to use, beautifully packaged calculator for your iPad or iPhone that includes both a standard and scientific calculator. Our versatile calculator app allows you to: • Customize the look of the application by changing the leather color and background texture (iPad Only) • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • Use both calculators in portrait or landscape mode • Take notes or draw with your finger on the Notes Tab • View and edit a history of your calculations on the History Tab • Use Airprint to print your notes or your calculation history • Email your calculation history or notes from within the app • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations We wrote Calculator! to be the perfect calculator for budding math students and professionals alike.
Calculator HD Pro Lite
This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.
- Dual-line display
- Calculation history
- Full scientific functions
- Customizable layouts and themes
- Big buttons
- Email history
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A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Supported by ads. SEE EVERY STEP ・Dual-line display - shows your input and result simultaneously ・Multi-line input for long equations ・Tap & hold to move the cursor or copy and paste where you want SAVE YOUR WORK ・History saves every calculation with time and date ・Label important calculations for easy reference ・Email single calculations or complete history ・Swipe down to review previous work CUSTOMIZE EVERYTHING ・6 layouts including extra-large button options ・10 color themes plus Dark Mode ・Adjustable font size and bold text ・Left-handed mode ・Show or hide features you don't need SCIENTIFIC FUNCTIONS ・Full scientific calculator when needed ・Memory buttons with values displayed ・Percentage and backspace buttons ・Automatic scientific notation ・VoiceOver accessibility OPTIONAL IN APP PURCHASES ・Today View Widget (iOS 17 and below) ・Multiple History Tapes ADDITIONAL FEATURES ・Customizable button symbols and decimal settings ・Multiple backspace button styles ・iPad Split View and 3D Touch support ・Gesture controls for quick access URL Scheme: calculatorhdprofree://
Screenshots
Verdict
The clearest difference is price: Calculator HD Pro Lite at Free against Calculator!'s $0.99. Calculator HD Pro Lite also leads on in-app purchases (none vs 1) and ratings volume (52K vs 4.3K). Calculator!'s advantage is ads (none vs shown) and review sentiment (86% vs 77%). On rating, update cadence 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
Calculator HD Pro Lite is free to download; Calculator! costs $0.99 up front. Calculator! sells 1 one-off in-app purchase. Calculator HD Pro Lite asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Calculator! against 4.6 for Calculator HD Pro Lite. That said, the two scores are not equally well evidenced: Calculator HD Pro Lite has 52K ratings behind it against 4.3K, so its average is the more settled of the two. Written reviews are what separate them: 86% of Calculator!'s written reviews are positive against 77% of Calculator HD Pro Lite's.
Calculator! ships an update every 3 months, Calculator HD Pro Lite every 2 months. Both last shipped on November 5, 2026.
| Parameter | Calculator! | Calculator HD Pro Lite |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (4.3K ratings) — better | 4.6 (52K ratings) |
| Positive reviews | 86.0% of reviews — better | 77.1% of reviews |
| Number of ratings | 4.3K | 52K — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 56 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | 7th Gear | Cider Software LLC |
Customer experience
Calculator!
Calculator HD Pro Lite
User reviews
Calculator!
From 4.3K App Store ratingsWhat we love
- 💰 Reasonably priced
- 📝 Useful note-taking features
- 📊 Keeps a calculation history
- 🎨 Customizable appearance
- 🔍 Helpful log and tracking features
Room to improve
- 🤔 Confusing input box behavior
- 🔍 Lack of graphing features
- 🔍 Missing some scientific calculator buttons
- 🔍 Inconsistent widget behavior
- 🔍 Issues with split-screen and resizing
Calculator HD Pro Lite
From 52K App Store ratingsWhat we love
- 👍 Easy to use
- 📝 Keeps calculation history
- 💡 Customizable layout and themes
- 🔢 Large, clear numbers
- 🧮 Variety of functions (basic, scientific, etc.)
Room to improve
- 💢 Intrusive ads, especially between calculations
- 🙄 Ads that are difficult to close
- 🤦♂️ Ads that interrupt workflow
- 🤑 Expensive to remove ads
- 🚫 Gambling ads
Bugs and requests
Calculator!
Reported bugs
4 issues- Widget doesn't work as expected
- Calculation history not available in portrait mode
- Resizing issues on iPad Pro
- Slow startup times on older devices
Requested features
5 requests- Add unit conversion tools
- Improve calculation expression logic
- Allow notes to be viewed in portrait mode
- Implement a scratch paper area on the right side
- Add ability to sync data across devices
Calculator HD Pro Lite
Reported bugs
3 issues- Calculation errors with very large numbers
- Crashes after recent update
- Decimal point displayed as comma
Requested features
5 requests- Dark mode option
- Ability to sync calculation history across devices
- More advanced math functions (e.g. dms/dd)
- Customizable button layout
- Ability to disable ads without paying
In-app purchases
Calculator!
- Calculator$0.99
Calculator HD Pro Lite
No in-app purchases
Questions
Is Calculator! free?
Is Calculator HD Pro Lite free?
Which has better reviews, Calculator! or Calculator HD Pro Lite?
Do Calculator! or Calculator HD Pro Lite have ads?
Which is updated more often, Calculator! or Calculator HD Pro Lite?
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