Classicalc calculator vs Mars Legacy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Classicalc calculator
This calculator app offers instant calculations as you type, following the mathematical order of operations. It features unique piano sound themes and allows seamless continuation of calculations across iPhone and Apple Watch. Your equations are automatically saved for convenience.
- Instant calculation as you type
- Mathematical order of operators
- Cross-device continuity (iPhone/Watch)
- Automatic equation saving
- 14 piano sound themes
- Copy result to clipboard
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Classicalc is a unique, the most classy calculator app on the App Store. It's designed to be beautiful and simple, but also… to sound amazing! Each color theme has its own, actual Grand Piano major scale! It's Chopin-awesome! Underneath it beautiful simplicity, there's some serious technology powering Classicalc: ## Instant Calculation calculates the formula as you type, so you never have to use the equals sign (=). We spare you one unnecessary tap at a time. ## Classicalc calculates result using mathematical order of operators (× ÷ + -) so if you would like to add 1 to 1 and then multiply the result by 2, you should write (1 + 1) × 2 instead of 1 + 1 × 2 ## You can start your calculations on your iPhone, then Continue on your Apple Watch, and the other way around. ## Your most recent equation is always saved, even if you shut the app. When you run it again, The formula is instantly there. ## 14 great-looking backgrounds with related actual Grand Piano major scales. Change colors and major scales on iPhone app (by pressing little diamond in top-left corner) to change colors on Apple Watch. ## In case the numbers bore you, you can always play a song. It's Chopin-awesome! *** Tips *** - long press "backspace" button to clear whole expression (you can also force touch on your Watch) - long press the result on your iPhone/iPad to copy it to the system clipboard
Mars Legacy
Control and configure your indoor grow lights remotely. Automate growth cycles with custom timers, simulate sunrise and sunset, and manage multiple lights independently from a single device. Compatible with the Mars Hydro Smart Grow System.
- Remote LED light control
- Adjustable light intensity
- Automatic growth cycle programming
- Sunrise/sunset simulation
- Wireless multi-light control
- Independent lighting group management
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The Mars Hydro app is launched to build a smart, simplified, frontier a ccess for growers to a more manageable grow project, supporting m obile control and growth programs configuration, compatible with Ma rs Hydro Smart Grow System at: www.mars-hydro.com *Easily turn ON/OFF your LED grow lights and adjust the intensity with j ust a few clicks. *Precisely arrange time triggers to achieve automatic growth cycles an d simulation of sunrise and sunset. *Wireless control of multiple LED grow lights via one device at the sam e time. *Different lighting groups are available for independent management, which enables simultaneous monitor on paralleled grows. ...More to be launched
Screenshots
Verdict
The clearest difference is review sentiment: Classicalc calculator at 63% against Mars Legacy's 12%. Classicalc calculator also leads on rating (3.8 vs 1.3) and device support (5 vs 2). Mars Legacy's advantage is price (Free vs $0.99) and update cadence (monthly vs every 20 months). On ads, in-app purchases 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
Mars Legacy is free to download; Classicalc calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Classicalc calculator holds the better App Store score, 3.8 against 1.3. That said, the two scores are not equally well evidenced: Mars Legacy has 71 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 63% of Classicalc calculator's written reviews are positive against 12% of Mars Legacy's.
Classicalc calculator ships an update every 20 months, Mars Legacy monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Classicalc calculator | Mars Legacy |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (13 ratings) — better | 1.3 (71 ratings) |
| Positive reviews | 62.5% of reviews — better | 12.2% of reviews |
| Number of ratings | 13 | 71 — better |
| Update frequency | Every 20 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 14 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Lukasz Kowalski | MARS TRADING RCC, INC. |
Customer experience
Classicalc calculator
Mars Legacy
Bugs and requests
Classicalc calculator
Not enough reviews yet to summarise bugs or requests.
Mars Legacy
Reported bugs
20 issues- App cannot detect Bluetooth despite phone detecting it
- Timer settings do not execute at scheduled times
- Scenes and automation groups fail to work
- WiFi connection drops frequently and reconnection fails
- Light brightness changes unexpectedly without user input
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- Humidity readings display unrealistic fantasy values
- App crashes and loses all device/account data
- Login verification codes not received
- Sunrise/sunset mode ignores brightness settings and forces 100%
- Time selection interface is confusing and unreliable
- Fan disconnects from app during use
- PPFD settings reset unexpectedly
- App update broke existing functionality
- Device not detected during initial setup
- Password signup validation error
- Bluetooth icon shows as disabled after update
- Light turns off mid-cycle without reason
- Temperature unit cannot be changed to Celsius
- Scenes override manual timer settings
- App fails to save time settings correctly
Requested features
12 requests- Multiple on/off cycles per day for automation
- Daylight saving time adjustment option
- Sunrise/sunset mode with adjustable brightness levels
- Better WiFi stability and range
- Improved app interface and user experience
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- Comprehensive help documentation
- Account recovery and data persistence
- Multi-language support with accurate translations
- System time picker instead of custom control
- Ability to set different brightness levels for different scenes
- More reliable remote control functionality
- Better error messages and troubleshooting guidance
In-app purchases
Classicalc calculator
No in-app purchases
Mars Legacy
No in-app purchases
Questions
Is Classicalc calculator free?
Is Mars Legacy free?
Which has better reviews, Classicalc calculator or Mars Legacy?
Do Classicalc calculator or Mars Legacy have ads?
Which is updated more often, Classicalc calculator or Mars Legacy?
Other comparisons
