Mimir Mental Math vs C150 Pad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mimir Mental Math
Master mental math with this app's comprehensive lessons and adaptive training. Learn special tricks and general solutions for addition, subtraction, multiplication, division, and more. Improve speed and accuracy with personalized practice.
- 44 math lessons with tricks
- Addition, subtraction, multiplication, division
- Squaring and cube roots
- Calculate weekday for any date
- Adaptive and choice-based training
- Help button for trick suggestions
- Dual language support (English/German)
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Would you like to improve your mental math skills? Would you like to learn how to solve difficult math problems with ease and impress yourself and your friends with your math skills? With this app you will not only train your brain by solving math problems, you will also learn special mental math tricks. For many math problems, special tricks exist that make solving these much easier. It is important to know when to use which trick, but also how to solve a math problem if none of these special tricks can be used. This app contains 44 lessons (with up to 3 tricks per lesson) where you will learn tips and tricks for the following types of math problems: -Addition -Subtraction -Multiplication -Division -Divisibility -Remainders -Squaring -Square and cube roots -Calculate the weekday for any date You will not only learn the special tricks, but also more general solutions. In the second part of this app, the training, you can solve random math problems with increasing difficulty (adaptive training). Or you can select what type of math problem you want to practice, and in which range the numbers should be (training with choice). The goal here is not only to become better and faster at solving math problems, you will also learn to detect which trick would be the best for the current math problem. This is why there is a help button in the training-section. If you push this button, the application will search for the trick or tip that is possibly the easiest for solving the current math problem. Additional features: -Two languages: All texts are in english and german. -Two different GUI-designs: Use a blue background with white text in sci-fi movie style. Or switch to a white background with black text. Lessons: Introduction Addition Subtraction Single digit multiplications x 10 and x 5 x 2, x 4 and x 8 x 9 and x 3 x 6 and x 7 x 11 and x 12 Multiplication of numbers between 11 - 19 and between 91 - 99 Multiplication of numbers close to a power of 10 Multiplication of numbers close to multiples of 100 or 1000 Multiplying numbers with two different bases Multiplication of 2 digit numbers Multiplication of 3 digit numbers x 111, x 21 and x 121 x 101 and x 1001 x 15, x 25 and x 50 x 95 and x 125 x 2-digit numbers that end in 5 and x 50 to 59 x 99, x 999 and x 999999… x 19 and x 2-digit numbers that end in 9 (including a special case) ÷ 10, ÷ 5 and ÷ 4 ÷ 9 and ÷ 8 Division: Remainders method General division method Divisibility by 2, 5 and 10 Divisibility by 9, 3 and 6 Divisibility by 4, 8 and 7 Divisibility by 11, 12 and 13 Remainder when dividing by 2, 5 and 10 Remainder when dividing by 3, 9 and 6 Remainder when dividing by 4 and 8 Remainder when dividing by 7 and 11 Squaring 1 to 29 Squaring numbers ending with 5, and 50 to 59 Squaring 26 to 125 Squaring numbers close to 1000, and general squaring method Squaring numbers ending with 1 or with 25 Squaring numbers ending with 9 or that have only 9s Perfect cube root Perfect cube root of numbers between 100 and 200 Perfect square root Day for any date
C150 Pad
This application is a flight planning tool for the Cessna 150, calculating mass and balance, takeoff and landing distances, climb data, and optimal cruise altitudes. It allows users to input various flight conditions and aircraft configurations to generate precise performance metrics.
- Mass & Balance calculations
- Takeoff and Landing distance computation
- Climb performance analysis
- Optimal cruise altitude finder
- Stall speed calculation
- Load manifest generation
- Scenario "what if" analysis
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Gyronimo Performance Pad -Cessna 150- The ultimate EFB computer for Mass & Balance and Performance. For Cessna 150 with fixed pitch propeller 69 inches and Continental Engine O-200-A, 100hp at 2750 RPM Compatibility: requires iPad 3 or newer, or iPad Mini Retina Calculate and interpolate performance data using the actual values from the Cessna 150 Pilot's Operating Handbook (POH). Finish your complete fight planning in just a few seconds. Performance planning has never been easier and quicker. Results are updated immediately and displayed in high resolution graphics, enhanced for the iPad and iPad Mini. Change all important values using sliders. Experiment with the results and create "what if" scenarios in no time. Find your optimal cruise altitude, takeoff ground roll, landing distance, climb data and stall speeds. The Performance Pad C150 has seven main pages: 1. The Mass & Balance (or Weight & Balance) Page Calculates Center of Gravity, Moments, Takeoff and Zero Fuel Mass as well as Percent MAC (% MAC). Set person and baggage weights in seconds using the convenient sliders. Check if the CG is within limits using three graphical displays - Moment Envelope - CG envelope - Aircraft axis or see a complete load manifest that you can send to your email address to quickly prove that you have completed the Weight & Balance for you flight. 2. The Takeoff Page Using the actual data from the C150 Operating Handbook the Performance Pad calculates and displays Ground Roll and Landing Distance based on: - Aircraft Mass - Takeoff Elevation in MSL (Pressure Altitude and Density Altitude will be computed) - Outside Air Temperature (OAT) - Altimeter Setting - Runway Conditions (i.e. paved dry to long grass or snow) - Runway Slope - Wind Conditions Wind Components Computer - Use the Wind Components page to determine your headwind or tailwind component. Rotate the wind dial to set wind direction, set windspeed and the results will be transferred to your takeoff computations automatically! 3. The Climb page Calculates time, fuel and distance based on - Difference between Takeoff Elevation and intended Flight Level - Altimeter Setting - Outside Air Temperature (OAT) - Altimeter Setting - Headwind or Tailwind Component 4. The Cruise Page Using the actual data from the Pilot's Operating Handbook you can determine the optimal cruise altitude based on - Trip Distance - Flight Level - Engine RPM - Temperature - Wind and Altimeter Setting 5. Landing Page Calculates Ground Roll and Landing Distance based on wind, elevation, altimeter setting etc. Like on the Takeoff Page you can use the Wind Components Computer to quickly determine head- or tailwind components 6. Stall Speed Page. Calculates The Stall Speed based on Bank Angle and Flap Settings. Stall Speed will be computed as KIAS and KCAS using the actual values from the Cessna POH. 7. Setup - Load and Save up to five Aircraft Settings and Scenarios. - Send a Mass & Balance Summary to your email address. - Visit our video channel and watch tutorials and video manuals. Mode Switch: The Performance Pad can be used in two Modes: "Individual Mode" All calculations can be done independently from each other. "Plan Mode" Calculated values will be forwarded to the next page and an additional "Flight Summary Page" is available. Choose this mode if you want to do a complete performance planning. Disclaimer: The author disclaims any liability for any direct, indirect, incidental, or consequential losses or damages in connection with your access to or use of this software. The information contained in this software is for general information purposes only.
Screenshots
Verdict
The clearest difference is review sentiment: Mimir Mental Math at 95% against C150 Pad's 0%. Mimir Mental Math also leads on price ($1.99 vs $16.99) and rating (5.0 vs 4.0). C150 Pad's advantage is ratings volume (4 vs 1). On ads, in-app purchases and monetization model 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
Mimir Mental Math costs $1.99 and C150 Pad $16.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mimir Mental Math holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 95% of Mimir Mental Math's written reviews are positive against 0% of C150 Pad's.
Mimir Mental Math ships an update every 3 months, C150 Pad every 8 months. The most recent releases landed on September 25, 2026 and July 28, 2026 respectively.
| Parameter | Mimir Mental Math | C150 Pad |
|---|---|---|
| Price | $1.99 — better | $16.99 |
| Rating | 5.0 (1 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 95.2% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 10.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 88 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Snarp | Gyronimo, LLC |
Customer experience
Mimir Mental Math
C150 Pad
In-app purchases
Mimir Mental Math
No in-app purchases
C150 Pad
No in-app purchases
Questions
Is Mimir Mental Math free?
Is C150 Pad free?
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