Numerical³ vs Grandma Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Numerical³
A powerful and beautifully designed calculator app that offers advanced scientific functions, automatic bracket handling, and a unique no-equals button interface. It integrates seamlessly with iOS features like widgets and keyboards for calculations anywhere.
- No equals button interface
- Automatic bracket handling
- Full scientific keypad
- Today Widget integration
- Numerical² Keyboard for any app
- Equation editing
- Customizable themes
Read full descriptionHide full description
Numerical³ is still the calculator without equal. The first Numerical shipped in 2014—v3 brings long-requested improvements and the same focus on delightful, minimalist utility apps.MAC TOONumerical runs natively on macOS: multiple windows, tabs, resizing, desktop widgets, full keyboard support, and synced history. Download it on the Mac App Store.WIDGETSLock screen and Home Screen widgets—modernized on iPhone and iPad.THEMESBrand-new neo-morphic themes alongside our most popular picks—each with light and dark variants that follow your iOS appearance settings. Use the Theme Picker to preview them all.ICONSTheme Home Screen icons match iOS 26 with glass effects, Dark Mode, and tints.HISTORYYour equations stay visible on screen—above the keyboard on iPhone (portrait) and to the side on iPad and Mac. iCloud keeps history in sync across iPhone, iPad, and Mac.KEYBOARDSExternal keyboards are fully supported on iPhone, iPad, and macOS—including the shortcuts you expect.SOUND FXSounds and clicky feedback on iPhone, iPad, and Mac. Haptics on iPhone.14+ LANGUAGESThe entire app is localized in 14+ languages—including Japanese, Chinese, Korean, and Russian—with international digits and formats. Missing yours? Let us know.Mana Machines—Numerical³ and upcoming apps from a studio focused on delightful, minimal, human-centered utilities. More on the way.Questions or feedback: manamachineventures@gmail.comDeveloped by Andrew J Clark. Designed by Andrew J Clark & Alex Vanderzon. Terms of Use: https://www.manamachineventures.com/terms
Grandma Calculator
This is a straightforward, classic calculator application. It offers a clean interface with no advertisements or in-app purchases to interrupt your calculations.
- Classic calculator interface
- Free to use
- No advertisements
- No in-app purchases
- No user tracking
Read full descriptionHide full description
A free and classic calculator. No ads. No in-app purchase. No tracking.
Screenshots
Verdict
The clearest difference is monetization model: Grandma Calculator at free against Numerical³'s paid. Grandma Calculator also leads on review sentiment (89% vs 75%). Numerical³'s advantage is ratings volume (1.3K vs 97) and device support (3 vs 1). On price, rating, update cadence 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Numerical³ holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Numerical³ has 1.3K ratings behind it against 97, so its average is the more settled of the two. Written reviews complicate that: 75% of Numerical³'s written reviews are positive against 89% of Grandma Calculator's, so the app with the better star average is not the one people write more warmly about.
Numerical³ ships an update every 2 weeks, Grandma Calculator weekly. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.
| Parameter | Numerical³ | Grandma Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.3K ratings) — better | 4.6 (97 ratings) |
| Positive reviews | 75.0% of reviews | 88.6% of reviews — better |
| Number of ratings | 1.3K — better | 97 |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Mac — better | iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 207 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew J Clark | Julien Eyriès |
Customer experience
Numerical³
Grandma Calculator
User reviews
Numerical³
From 1.3K App Store ratingsWhat we love
- 🚀 Great app
- 👍 Simple and intuitive
- 👍 Clean and beautiful design
- 🚀 Fast and responsive
- 👍 Customizable themes
Room to improve
- 🐛 Bugs and glitches (unresponsive keys, calculation errors)
- 🔍 Lack of advanced functions (scientific, unit conversion)
- 💡 Needs more theme options
- 💡 Needs iPad support
- 💡 Needs widget support
Grandma Calculator
From 97 App Store ratingsWhat we love
- 👍 Simple and easy to use
- 🚫 No ads
- 🆓 Free to use
- 👀 Clear and large display
- 🔢 Shows running list of entries
Room to improve
- ❌ No backspace/clear button
- 👵 Grandma icon is distracting (for some)
- 🔄 Opens in landscape mode
- ↔️ Hard to close and get back to previous page
- 👴🏻 Wish for skin tone options for grandma icon
Bugs and requests
Numerical³
Reported bugs
3 issues- Unresponsive keys
- Calculation errors
- Crashes on startup
Requested features
5 requests- Add scientific functions (square root, trigonometry, etc.)
- Implement an equals button
- Add more theme options
- Develop an iPad version
- Bring back widget support
Grandma Calculator
Reported bugs
2 issues- Mistakes require starting over due to no backspace
- Clearing all entries when trying to correct a mistake
Requested features
6 requests- Add a backspace/clear button
- Allow copying total to another app
- Offer an iPhone version
- Option to donate to the developer
- Change skin tone of grandma icon
Show 1 moreShow fewer
- Auto-rotate to vertical
In-app purchases
Numerical³
No in-app purchases
Grandma Calculator
No in-app purchases
Questions
Is Numerical³ free?
Is Grandma Calculator free?
Which has better reviews, Numerical³ or Grandma Calculator?
Do Numerical³ or Grandma Calculator have ads?
Which is updated more often, Numerical³ or Grandma Calculator?
Other comparisons
