Compare apps
Put 2 to 5 apps side by side, from Google Play, the App Store, or both.
Key numbers
The leader in each row is highlighted.
Learn Arduino ProgrammingLearn Electrical Engineering
Rating★ 4.19—
Number of ratings273—
InstallsGoogle Play only100,000+10,000+ Countries in top chartsToday00
Best rank today
—
—
Last updated26 months ago31 months ago ReleasedApr 16, 2017Dec 26, 2018
CategoryEducationBooks & Reference
Content ratingEveryoneEveryone
Tracked by Risewatchs since11 Oct 202612 Oct 2026
Rank history
Daily position in United States. Higher on the graph is better (rank 1 is the top).
None of these apps were in the top free chart in United States during this period. Try another country or chart.
Rating breakdown
Share of ratings at each star level. A big 1★ bar means many unhappy users.
Learn Arduino Programming
★ 4.19 · 273 ratings
Learn Electrical Engineering
No rating
No breakdown yet.
Store page, money and tech
How each app sells itself on the store, how it makes money, and what devices it needs.
Learn Arduino ProgrammingLearn Electrical Engineering
Store page
Name lengthBoth stores allow 30 characters25 / 3028 / 30
Short descriptionGoogle Play, up to 80 characters77 / 8073 / 80
Description28 words137 words (leader)
Screenshots56 (leader)
Promo videoGoogle PlayNoNo
LanguagesApp Store——
Money
In-app purchasesNoNo
In-app price rangeGoogle Play——
Contains adsYesYes
Tech
App size——
RequiresAndroid 5.0Android 4.4
Growth
New ratings per day is the best free sign of how many people are downloading right now: more new ratings means more new players.
Not enough daily data yet. The graph appears after the daily scraper has collected these apps on at least 2 days.
Learn Arduino ProgrammingLearn Electrical Engineering
New ratingsIn this period0—
New ratings per dayAverage0—
Rating change——
InstallsGoogle Play milestone100,000+ (no change) (leader)10,000+ (no change)
Updates and store page changes
What each app changed, and when. Compare the dates with the rank graph to see what worked.
Learn Arduino ProgrammingLearn Electrical Engineering
UpdatesNew versions in this period00
Store page changesIcon, screenshots, name, texts00
No changes found in this period.
What users complain about
From each app's saved English reviews. The red cell is where an app gets the most complaints, which is your chance to do better.
Learn Arduino ProgrammingLearn Electrical Engineering
Reviews analysed7016
Negative reviews1–2★ share17%31% (most complaints)
Developer repliesShare of reviews answered30%13%
Reply speedTypical time to answer169 days3 days
Too many ads% of negative reviews25%
(most complaints)
0%
Crashes and bugs% of negative reviews0%0%
Pay to win, prices% of negative reviews0%0%
Too hard, unfair% of negative reviews0%0%
Lag, slow, battery% of negative reviews0%0%
Lost progress, account% of negative reviews0%0%
Internet, connection% of negative reviews8% (most complaints)0%
Boring, repetitive% of negative reviews0%0%
Bad update% of negative reviews0%0%
Controls, interface% of negative reviews0%0%
Learn Arduino Programming
Biggest complaint: too many ads
“Full screen advertisements are never acceptable, especially when they have sudden loud audio.”
Learn Electrical Engineering
Not enough negative reviews yet.
Where they rank today
Best position in each country's top charts. The 10 countries where these apps are strongest.
None of these apps are in a top chart today.
