Comparison

MicroCalc for microwave oven vs Piano Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MicroCalc for microwave oven

Easily calculate microwave heating times with simple button operations. Supports a wide range of wattages and allows for adjustments based on food quantity. Customize the app's appearance and sound settings.

Highlights
  • Simple button operation for time calculation
  • Supports 100W to 1400W microwave wattages
  • Adjustable wattage in 50W units
  • Correct heating time for half or double food quantity
  • Customizable appearance and sound settings
Features
Read full description

Convert, save, and time your microwave heating—all in one app. MicroCalc converts the wattage and heating time shown in recipes or on food packaging for the microwave you want to use. A recipe says 500W for 3 minutes, but you want to use 600W? MicroCalc gives you a time estimate instantly, with no manual ratio calculation. ADJUST FOR THE AMOUNT Heating half or double the recipe? Use the slider at the bottom of the screen to choose ×0.5 to ×3, and MicroCalc scales the time in proportion as an estimate. CONVERT AND START A TIMER (PREMIUM) Start a timer directly from the converted result, then pause, resume, or add 10 seconds. If you allow notifications, MicroCalc alerts you when time is up, even when the app is closed. On supported devices, you can see the remaining time on the Lock Screen or in the Dynamic Island. SAVE YOUR FAVORITES Save frequently used heating conditions with names such as frozen rice, drinks, or ready meals (up to three in the free version, unlimited with Premium). Recent conversions are available from your history. Recalled conditions are converted again for the microwave you’re using now. MULTIPLE MICROWAVES (PREMIUM) Add microwaves for home, work, or anywhere else (one in the free version). Set frequent wattages and a practical time increment for each one, and switch between them with one tap at the top of the screen. FEATURES • Convert from 100W to 1500W in 50W steps • Enter minutes, minutes and seconds, or seconds only • View the original conditions and converted result together • Recalculate instantly when the wattage or amount changes • Scale the time for ×0.5 to ×3 the recipe amount • Round up to practical 5-, 10-, or 30-second increments • Start a timer from the result (pause, resume, +10 sec) – Premium • Completion notifications and Live Activities – Premium • Favorites (up to three in the free version) and recent history • Multiple microwaves – Premium • Eight appliance color themes • English and Japanese • Designed for iPhone and iPad FREE AND PREMIUM Conversion, amount scaling, rounding, history, and color themes are free. The timer (with notifications and Live Activities), more than three favorites, and more than one microwave are unlocked with Premium, a one-time purchase. If you got MicroCalc before this version, Premium is included at no extra cost. No ads and no account registration. Conversions and saved data work without a network connection, and everything you enter stays on your device. PLEASE NOTE Times shown by MicroCalc are estimates based on wattage. Times for a different amount are scaled in proportion and are also estimates. Actual heating varies with the food, amount, container, and microwave. Follow the food packaging or manufacturer instructions and check the food as it heats. The timer only tells you when time is up. It does not control your microwave.

About

Piano Timer

Features
Read full description

Elevate Your Piano Practice with Piano Timer Discover the perfect practice companion in Piano Timer. Designed for dedicated pianists of all levels, Piano Timer revolutionizes your practice sessions with precision and progress tracking. - Customizable Practice Units: Set up your practice routine effortlessly by creating distinct units, whether it's scales, exercises, or pieces. Piano Timer's intuitive interface makes organization a breeze. - Seamless Timed Transitions: Enhance your concentration and rhythm as each unit is automatically timed. Once the timer completes, seamlessly transition to the next unit, maintaining your flow and focus. - Record Your Progress: Capture your playing moments with ease. Record your practice sessions to listen back, analyze your growth, and fine-tune your skills. - Insightful Statistics: Keep track of your dedication. Piano Timer provides detailed statistics, showing the time invested in each unit. Witness your progress and adapt your practice strategy accordingly. Unleash the power of focused practice with Piano Timer. Elevate your playing, perfect your technique, and witness your skills flourish. Download now and embark on a journey of musical excellence!

Screenshots

MicroCalc for microwave oven4 screens
Piano Timer4 screens

Verdict

The call

The clearest difference is iOS requirement: Piano Timer at 16.0 against MicroCalc for microwave oven's 18.0. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MicroCalc for microwave oven sells 1 one-off in-app purchase and Piano Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
MicroCalc for microwave oven versus Piano Timer: the parameters behind the verdict, then further details
ParameterMicroCalc for microwave ovenPiano Timer
PriceFreeFree
Rating3.0 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS18.016.0 — better
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperRYUICHIROU SHIMONOSebastian Schilling

In-app purchases

1 purchases

MicroCalc for microwave oven

One-time1
  • MicroCalc Premium$1.99
1 purchases

Piano Timer

One-time1
  • Piano Timer Premium$2.99

Questions

Is MicroCalc for microwave oven free?
MicroCalc for microwave oven is free to download, with in-app purchases available.
Is Piano Timer free?
Piano Timer is free to download, with in-app purchases available.
Do MicroCalc for microwave oven or Piano Timer have ads?
Neither MicroCalc for microwave oven nor Piano Timer shows ads.
Which is updated more often, MicroCalc for microwave oven or Piano Timer?
MicroCalc for microwave oven ships an update every 2 months, and Piano Timer every 2 months. Most recently, MicroCalc for microwave oven was updated on October 24, 2026 and Piano Timer on October 25, 2026.

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