Crystal Math - Numbers On Spee

Name: Crystal Math - Numbers On Spee
Rating: 4.57 (58 reviews)
Author: Twofingers Apps

LiveTwofingers Apps4 apps · 48.9K installsEducationalFree · contains adsIn-app purchases: $1.89 per itemde.twofingersapps.crystalmath

Get into a rush solving math puzzles - But beware, Crystal Math is addictive!

Alert me ★ Watch Open in Play ↗

Total installs: 1,443
Installs / day: 0
Rating: 4.6★
Released: 3 Jan 2018
Last update: 20 Jul 2026
Countries: —

Installs per day

gain of the exact counter

Daily tracking since 10 Oct 2026 · history grows every day

Install history

exact counter from Google Play

2dAll

Dashed: estimate from the release date (no daily data before 10 Oct 2026) · time axis compressed before that day

Daily tracking since 10 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

Shares data with third parties Personal info, App activity and 2 others
Collects data Personal info, App activity and 2 others
Data is encrypted in transit
You can ask for your data to be deleted

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

10 in 3 groups

4 Sensitive1 Notable5 Routine

What this app can do with your phone

Read photos, videos, and other files saved in your phone's shared storage
Add, change or delete photos, videos and other files in your phone's storage

Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

StorageSensitive2

Access to files, photos and media saved on your phone's storage

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

OtherNotable6

Access to miscellaneous device features that don't fit other categories

Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE
Read Google service settings stored on your deviceread Google service configuration · com.google.android.providers.gsf.permission.READ_GSERVICES
Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Read more · all 10 permissions Show less

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Download

Full description

Crystal Math brings brain training to a whole new level. No matter if against the clock, or against other math cracks, improve your mental arithmetic on a daily basis, unlock all achievements one by one and become the new math champion. Test you math skills in four challenging modes. Daily Challenge: Solve a new challenge every day and fight for a spot on the highscore list in three difficulties. Step up your game though, you only get one try! Duel: Challenge other players to a duel, or accept someone's challenge and fight for the winnig time. Time Attack: Practice under competition conditions. You have 30 seconds to solve the challenge. Free Game: Explore the game free of pressure and find your personal techniques for upcoming challenges. Choose an avatar and show math cracks around the globe what you are capable of. What are you waiting for? Pick up your slide rule and get started! REQUIRED PERMISSIONS: Internet: To access highscores, challenges and submit your times. Read accounts: to personalize you in-app purchases, so they can be restored after re-installation and across multiple devices. Write external storage: To save a screenshot of duels in order to share them with your friends.

What's new

2.1.1 - Reboot of your favorite math game! - Refreshed, polished and fully working again

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