Comparison

Mental Arithmetic Professional vs The Mella App

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

Head to head
About

Mental Arithmetic Professional

Features
Read full description

Mental Arithmetic Professional is a fun and challenging brain-training game designed to improve your mental calculation skills. Solve as many math problems as you can within 120 seconds. Every problem is generated randomly and is meant to be solved entirely in your head—no calculator required. Earn 1 point for every correct answer. Lose 3 points for every incorrect answer. Speed is important, but accuracy is the key to achieving a high score. When the timer reaches zero, your score is automatically submitted to the international leaderboard. Beat your personal best or compete against players from around the world. Features • Randomly generated arithmetic problems • 120-second challenge mode • Improves mental math and concentration • Reward and penalty scoring system • International leaderboard • Simple, fast, and addictive gameplay • Suitable for all ages Can you become the world's best mental math player? Good luck!

About

The Mella App

This app allows estheticians and cosmetologists to remotely control their Mella devices. Manage multiple devices from your phone, set custom on/off schedules, or manually control them on the fly. Save time and ensure your equipment is ready for clients.

Highlights
  • Remote device control
  • Custom on/off scheduling
  • Connect up to 6 devices
  • Manual on/off toggle
  • Device naming
  • WiFi connectivity
Features
Read full description

The Mella App is very user friendly and has the features that make our professional lives as estheticians and cosmetologists easier. Save time, save money and always be ready for that first client. Connect up to 6 devices to one phone. Name the device whatever you want for example "Room 1" or "Julie's Room". Connect each device to WiFi and you're all set for mobile control of each device from one phone. Tap Mella on or off for on the fly control or set Mella to an automatic on/off schedule for hands free piece of mind. Manual Mode: Tap the big circle to turn the device ON or OFF. The circle will turn green to indicate the device is on or it will be red to indicate the device is off. Going in for a special client? Tap Mella ON while you travel to the salon. Get home and not sure if you remembered to turn your warmer off? Tap Mella OFF from your couch instead of going back to the salon. Schedule Mode: Set each device to turn ON and OFF according to a schedule you set. Set Mella to turn on well before you arrive so your wax or sugar is ready when you get there. With Mella on an automatic schedule you'll never wonder if you remembered to turn off your warmers. Just take a peak on the app from wherever you are to be sure. Pro Tip: Move the Time Zone slider until it is black 3 simple user friendly steps to connect each device. Turn Mella OFF for the first 2 steps and make sure it's not too hot to handle while you look at the bottom of the device. Step 1 - Either Scan the QR code or enter the Device ID located on the bottom of the warmer. When completed tap the check mark. Step 2 - Name the device whatever floats your boat. Turn Mella ON for the next step and have your WiFi password handy. Step 3 - Tap "Set up" to connect the device to your WiFi. The green light will blink while you choose our WiFi and enter your password. The green light will turn off if you are successful. If you mess up or the light isn't blinking anymore don't worry, turn Mella OFF then ON and try again Pro Tip: Mella must use 4G - go to your phone seetings and make sure you are connected to 4G instead of 5G. Still having trouble? No problem feel free to email us at info@themella.com Why doesn't the app change the temperature? Because the app allows you to turn on the device with ample time to heat appropriately there is no longer a need to turn up the temperature to unsafe levels for quick melting. You adjust your temperature throughout the work day, where you leave the temperature at the end of the day is where it should be at the start of your next day. Terms of Service: https://app.termly.io/document/terms-of-use-for-saas/dffbbf12-9335-489b-b9ab-088fb66067a3

Screenshots

Mental Arithmetic Professional4 screens
The Mella App3 screens

Verdict

The call

The clearest difference is update cadence: The Mella App at every 3 months against Mental Arithmetic Professional's every 12 months. The Mella App also leads on iOS requirement (13.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mental Arithmetic Professional sells 1 one-off in-app purchase and The Mella App sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Mental Arithmetic Professional ships an update every 12 months, The Mella App every 3 months. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Mental Arithmetic Professional versus The Mella App: the parameters behind the verdict, then further details
ParameterMental Arithmetic ProfessionalThe Mella App
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 12 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size11 MB12 MB
Age rating4+4+
DeveloperGerhard LentschikThe Mella LLC

In-app purchases

1 purchases

Mental Arithmetic Professional

One-time1
  • Turn off advertising$1.99
2 purchases

The Mella App

Subscriptions2
  • Connect to My Mella - 1 Month$0.991 Month
  • Connect to My Mella - 1 Year$11.491 Year

Questions

Is Mental Arithmetic Professional free?
Mental Arithmetic Professional is free to download, with in-app purchases available.
Is The Mella App free?
The Mella App is free to download, with in-app purchases available.
Do Mental Arithmetic Professional or The Mella App have ads?
Neither Mental Arithmetic Professional nor The Mella App shows ads.
Which is updated more often, Mental Arithmetic Professional or The Mella App?
Mental Arithmetic Professional ships an update every 12 months, and The Mella App every 3 months. Most recently, Mental Arithmetic Professional was updated on October 25, 2026 and The Mella App on October 29, 2026.

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