App Intel

Mental Arithmetic - Math

LiveYichuan1 app · 97 installsEducationFree · contains adscom.yichuan.arithmetic

Mental math training: drills, weak-spot diagnosis & mastery map

Alert me★ WatchOpen in Play ↗
Total installs
97
exact · Play shows 50+
Installs / day
—
measured after our second crawl (about a day)
Rating
—★
— ratings · — reviews
Released
16 Jul 2025
1.2y ago
Last update
19 Sept 2026
v2.0.7 · 23d ago
Countries
—
not checked yet

Install history

exact counter from Google Play
94.796.197.498.710011 Oct12 Oct12 Oct
94.796.197.498.710011 Oct12 Oct12 Oct

Installs per day · last 90 days

Not enough history yet — check back tomorrow

Change timeline

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.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • No data shared with third parties
  • No data collected

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

4 in 1 group
0 Sensitive1 Notable3 Routine
OtherNotable4

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

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

Full description
Mental Arithmetic — a portable mental math training system. Build fundamentals, break through weak spots, and see your progress clearly. SYSTEMATIC PRACTICE • Addition, subtraction, multiplication, and division • Integers, decimals, and fractions • Four difficulty levels; adjustable question count and time limit • Dynamic questions—start a basic session anytime FOCUSED TRAINING • Weak-spot diagnosis: pinpoint structural gaps (borrowing, carrying, times tables, and more) • Technique dojo: make-ten, complement multiply, distributive law, and more—learn the method, then practice • Steady pace: train steady speed, not frantic rushing • Number-sense estimation: magnitude estimates and quick comparisons (correct within tolerance) DAILY DIAGNOSIS A short, auto-planned session based on your weak areas and due reviews—a clear reason to open the app every day. PROGRESS YOU CAN SEE • Skill mastery map across micro-skills • Statistics: accuracy, speed, recent volume, and long-term trends • Practice calendar with monthly comparisons to build a lasting habit For students building foundations, adults rebuilding fluency, and anyone who wants mental math that is faster, steadier, and clearer. Start today. Progress gets clearer from here.

What's new

Fixed some known issues and improved some performance.

Growing in Education

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