Concentration Grid

LiveSTALWART GROUP LLC1 app · 1.6K installsSports$0.99com.stalwart.concentrationgridpro

Mental skills exercise/training - improve your power of focus and concentration

Alert me★ WatchOpen in Play ↗
Total installs
1,571
exact · Play shows 1,000+
Installs / day
0
7-day avg · last day 0
Rating
—★
— ratings · — reviews
Released
9 Feb 2016
10.7y ago
Last update
20 Aug 2025
v1.0 · 1.1y ago
Countries
—
not checked yet

Installs per day

gain of the exact counter

No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play
1,5701,5711,57211 Oct12 Oct
05001,0001,5002,0009 Feb 201611 Oct 202612 Oct 2026

Dashed: estimate from the release date (no daily data before 11 Oct 2026) · time axis compressed before that day

Daily tracking since 11 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.

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

7 in 3 groups
4 Sensitive0 Notable3 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
OtherRoutine3

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

  • 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
  • Make your phone vibratecontrol vibration · VIBRATE

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
The Concentration Grid app is based on the mental focus grid exercise. Mental focus grids have long been used as a tool by coaches and sports performance/psychology professionals to assess and improve performance of their athletes. The objective of the grid exercise is to select in sequence each of the numbers (randomly arranged and presented) in the grid. Performance is timed. The challenge is to complete the grid as quickly as possible. The exercise calls for focus and concentration. The grid exercise has been a long-time favorite of many baseball/softball coaches and players (typically using paper sheets, a pen and a stopwatch). Coaches/sports performance staff and athletes now can do their mental skills training work (and save paper) by using the Concentration Grid app on their mobile device. The Concentration Grid app is intended to provide competitive challenge and a fun/entertaining experience that is simple and straightforward ... like the printed paper grid exercise - but more convenient. With the Concentration Grid app the level and nature of the challenge can be varied by changing the size of the grid - by selecting the number of rows and columns for the grid. Grids can be generated in a variety of sizes - from 3 columns/rows to 14 columns/rows. (A grid does not have to have the same number of rows and columns.) More rows/columns, more numbers. More numbers, more time. Try a 3x3 grid ... a 3x14 grid ... a 7x7 grid ... a 5x10 grid ... a 7x10 grid ... a 10x10 grid .... a 10x12 grid ... a 14x14 grid. You get the idea. The standard is a 10x10 grid - which a focused grid master should be able to complete in under 4 minutes. Other benchmarks ... A 3x3 grid can be completed in about 3 seconds. A 5x5 grid might be completed in under 15 seconds. A 7x7 grid can be completed by a master in well under a minute. A 9x9 grid might be completed in 3 minutes. Can you complete a 6x6 grid in under 30 seconds? Smaller grids will call for dexterity and quick vision as well as focus/concentration. Larger grids will challenge your ability to sustain focus/concentration ... your mental stamina is put to the test. Challenge yourself with the Concentration Grid app. Track and measure your improvement as you practice. Then compare your best grid times against teammates and others (against benchmark times and on the leaderboards on the community website www.concentrationgrid.net) ... who is the fastest? Who is a master of the grid? (Coaches and teachers can set up intrasquad competitions/tournaments to find out.) Practice makes perfect. Sustained attention and effort are rewarded with improved performance/times in the grid exercise. The grid exercise can be practiced in quiet places ... or under loud/distracting (game day) conditions. In a world filled with distractions, use Concentration Grid to practice/exercise mental focus skills. The Concentration Grid app will provide your grid time (elapsed time to complete the grid exercise) as well as a GRID ID data set that includes additional information about your performance. The app will also maintain a history/file for you to monitor your performance/improvement. The Concentration Grid app includes a SHARE feature which will allow you to share/post your grid times and screenshots on social media and to the leaderboards (at www.concentrationgrid.net ... community site). Make self-development a daily habit.

What's new

Update for new OS

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