Search app
CSR Racing 2


Reference & Education
Last Update
May 25, 2021
View in store

Store Performance Index


Store Performance Index shows overall performance of your app on app stores. It is based on combined ASO & reviews metrics.

See more data

Ratings & Reviews performance for mem

Ratings & Reviews performance provides an overview of what users think of your app. Here are the key metrics to help you identify how your app is rated by users and how successful is your review management strategy.

Number of reviews,


Avg rating,



2570 chars

"Leitner's System" is a memory tool designed by Sebastion Leitner in 1972, using flash cards to memorise words or phrases. It is a simple implementation of the principle of spaced repetition, where cards are reviewed at increasing intervals. "Hand Computer" app is designed to simulate the Leitner system and is a simple, convenient and effective memory tool for any foreign language student or simply a tool to help you study and remember any subject. When you find a word or phrase or equation you don't know, add it to a card after you have memorised it, then add the card to the first compartment. Review the cards in the first compartment a few times each day when you have time. If you still remember it, move the card to the next compartment. If you have forgotten it, put it back. After a few days or when the second compartment is full, review the cards in that compartment. If you have forgotten anything, put it back to the first compartment. The capacity of each compartment is optimised to recall your memory efficiently and effectively. The frequency you review each word increases as it proceeds through the compartments for more effective learning. The last compartment can hold as many cards as you want, but it is best that you review them from time to time. For more information, please read: Launch URL scheme for this app comcatalystwohandcomputer Demo Video: • Graphically visible stored cards to motivate you. • Non-proprietary file format... Documents are saved in plain text CSV file. • Synchronize via Dropbox. ... You can edit documents on your Mac/PC. • Night Mode is gentle on your eyes when studying in the middle of the night. • Listen to the word to improve your memory. = How to scan your own cards = 1. Tap “+” button to open “Add” page 2. Tap Camera button 3. Choose “Scan Multiple Cards” then follow the guide. = How to add multiple words using Dropbox = Prepare Mac/PC with Dropbox installed. Create a file like this… -------- Word1, Its definition Word2, Its definition Word3, Its definition . . . -------- Save this file in Hand Computer folder in Dropbox with csv extension. TECHNICAL INFORMATION This application includes Re-written in SceneKit with CAAnimation in version 2 instead of full CALayer + CoreAnimation in version 1. 59,000 lines of ObjC codes 6,900 lines of ORIGINAL Swift codes OpenCL image processing Supports Wacom Intuos Bamboo stylus using CoreBluetooth

 Why to reply to reviews?

User reviews affect conversion to installs and app rating. Featured and helpful reviews are the first to be noticed by users and in case of no response can affect download rate. This is why it is highly recommended to reply to them.

CSR Racing 2

About mem

Developed by Catalystwo Limited.

mem is ranking in   Reference & Education

Last update was at May 25, 2021and the current version is 2.1.7.

To see all other keys and revenue click here 777510569

mem have a 18a user reviews.

mem was released in the App Store. It is developed by Catalystwo Limited, who have also released the following apps.

mem has 18 user reviews.​

mem has an average rating of 4.5. ​The latest version of mem 2.1.7​ ​​was ​released on May 25, 2021​.

You can download mem ​here

Find growth insights on our blog

How to Respond to Google Play Reviews

How to Respond to Google Play Reviews

How to Respond to App Store Reviews

How to Respond to App Store Reviews

AppFollow identifies top apps in the App Store and Google Play in 2020

AppFollow identifies top apps in the App Store and Google Play in 2020

React to user feedback and market trends faster