Calcbot 2 vs Calculy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calcbot 2
This app offers a smart calculator with a history tape and expression view to track your calculations. It includes over 500 unit conversions and scientific functions, with an Apple Watch extension for on-the-go use.
- History tape for saved calculations
- Expression view for typed input
- Over 500 unit conversions
- Apple Watch extension
- Scientific functions in landscape
- Favorites for instant access
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Calcbot is an intelligent calculator and unit converter for the rest of us. Featuring an easy-to-read history tape, expression view, intuitive conversion, and much more! History Tape*. Every calculation you enter gets saved to the history tape. Refer to calculations later or send them right back to your current calculation. Expression View. Calcbot's original expression view allows you to see everything you have typed so you'll never forget what you entered or miss a typo. Apple Watch Extension. Perform basic calculations, conversions, calculate tips, and split bills right from your Apple Watch. Conversion*. Convert any of your calculations with over 500 units across 22 different categories including auto-updating currency rates. Favorites. Fave a calculation and get instant access to its result via the Favorites Key. No more cryptic memory keys. Scientific Functions. Rotate your device into landscape mode to gain access to common scientific functions. Constants. Get instant access to scientific constants like Pi, Atomic Mass, or add your own*. Round for Currency. Have all of your results rounded to two decimal places. Sounds & Animations. Beautiful custom animations and sound effects provide positive feedback and an enjoyable experience while performing calculations. * In-App purchase required.
Calculy
This free calculator app offers advanced functions beyond basic arithmetic, including a comprehensive unit converter with daily updated currency rates. It supports a wide range of mathematical operations and is available for iPhone and iPad.
- Advanced mathematical functions
- Unit converter with 220+ units
- Daily updated currency rates
- Supports iPad expanded layout
- Hardware keyboard support on iPad
- Ad-free experience
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Calculy is a free calculator for iPhone and iPad. Small yet mighty and totally ad-free. Go beyond basic calculations with Calculy’s full range of functions: • unit converter with more than 220 units from 16 sections (including currencies with daily updated rates) • percentages • square, cube and nth power • square root, cube root and nth root • logarithm, natural logarithm, common logarithm • factorial, reciprocal • rounding • exponentiation to the power of 2, 10, e • Pi, e Euler's number, random numbers • sine, cosine, tangent • arcsine, arccosine, arctangent • hyperbolic sine, hyperbolic cosine, hyperbolic tangent The expanded layout for iPad handily displays all available function keys. Hardware keyboard is supported on the iPad.
Screenshots
Verdict
The clearest difference is review sentiment: Calculy at 91% against Calcbot 2's 60%. Calculy also leads on monetization model (free vs free with in-app purchases) and rating (5.0 vs 4.7). Calcbot 2's advantage is ratings volume (11K vs 1). On price, ads, 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. Calcbot 2 sells 1 one-off in-app purchase and Calculy sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Calculy holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Calcbot 2 has 11K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Calcbot 2's written reviews are positive against 91% of Calculy's.
Calcbot 2 ships an update every 2 months, Calculy every 2 weeks. Both last shipped on October 22, 2026.
| Parameter | Calcbot 2 | Calculy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (11K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.1% of reviews | 91.3% of reviews — better |
| Number of ratings | 11K — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Tapbots | Lingo4you Mario Muller und Heike Pahlow GbR |
Customer experience
Calcbot 2
Calculy
Bugs and requests
Calcbot 2
Reported bugs
4 issues- History tape not recording all calculations
- Conversion settings not syncing to Apple Watch
- App crashing on launch for some users
- Blank app icons after iOS updates
Requested features
5 requests- Dark mode option
- Widgets for quick access
- More currency and unit conversions
- Improved Apple Watch integration
- Ability to edit calculations in history tape
Calculy
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calcbot 2
- Calcbot Pro$1.99
Calculy
- Buy me a coffee$0.99
- Buy me cookies$1.99
- Buy me a pizza$3.99









