Calculator vs Calculator Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
A straightforward calculator app designed for ease of use with large, legible digits. It offers a simple interface for quick calculations on mobile devices.
- Large, clear numbers
- Simple interface
- Easy calculations
- Mobile-friendly design
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A very simple calculator with big and clear numbers
Calculator Smart
This app offers a powerful and precise calculator for everyday math and advanced scientific computations. It features a clean interface with large buttons, supporting complex equations, multiple modes, and intuitive input methods. Personalize your experience with colorful skins and custom icons.
- 30+ scientific operations
- Degrees and Radians support
- Parentheses and nested equations
- Intuitive input with slide-to-delete
- Copy & Paste results
- Apple Watch app and Lock Screen Widget
- Colorful skins and custom icons
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Calculator Smart is the most powerful and precise calculator for iPhone, iPad, and Apple Watch — built for everyday math and advanced scientific computations alike. Whether you need a quick percentage or a complex nested equation with parentheses, Calculator Smart handles it all with a clean, modern interface and lightning-fast big buttons. Scientific & Standard Modes • 30+ scientific operations including trigonometry, logarithms, and more • Degrees and Radians support • Parentheses and nested parentheses for complex equations • Output in Decimal or Scientific Notation (mantissa/exponent) Intuitive Input • Slide to delete wrong digits instantly • Double-tap or long-press to Copy & Paste results • Full External Keyboard support (Bluetooth & Smart Keyboard) • Three-digit grouping with locale-specific decimal and thousands separators Cross-Platform & Widgets • Apple Watch app with Complication shortcuts • Lock Screen Widget — calculate without unlocking your device • Messages Extension — share results directly in conversations • Multitasking: Slide Over and Split View (iPad) Personalization • Colorful skins to match your style • Custom App Icons that match your chosen skin • Button sound feedback for a satisfying tactile feel Universal Purchase — buy once, use on all your Apple devices. Download Calculator Smart for FREE today!
Screenshots
Verdict
The clearest difference is rating: Calculator Smart at 4.7 against Calculator's 1.8. Calculator Smart also leads on ratings volume (494 vs 5) and update cadence (every 4 months vs every 15 months). Calculator's advantage is in-app purchases (none vs 3). On price, ads and iOS requirement 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. Calculator Smart sells 3 one-off in-app purchases. Calculator asks for nothing beyond the download.
Calculator Smart holds the better App Store score, 4.7 against 1.8. That said, the two scores are not equally well evidenced: Calculator Smart has 494 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 20% of Calculator's written reviews are positive against 36% of Calculator Smart's.
Calculator ships an update every 15 months, Calculator Smart every 4 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.
| Parameter | Calculator | Calculator Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (5 ratings) | 4.7 (494 ratings) — better |
| Positive reviews | 20.0% of reviews | 36.4% of reviews — better |
| Number of ratings | 5 | 494 — better |
| Update frequency | Every 15 months | Every 4 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac, Apple TV, Apple Watch — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | ABCiSoft | Miroslav Otsedarski |
Customer experience
Calculator
Calculator Smart
In-app purchases
Calculator
No in-app purchases
Calculator Smart
- Colorful Skins and Remove Ads$1.99
- Colorful Skins$1.99
- Colorful Skins for Mac app$1.99
