Retain Cards: AI Flashcards vs Udemy Online Video Courses

Retain Cards: AI Flashcards

Retain Labs GmbH
App Store
$149/mo
~$1.8K/yr · 7K installs
VS

Udemy Online Video Courses

Udemy
App Store
$322.3K/mo
~$3.87M/yr · 8.4M installs
Revenue winner Udemy Online Video Courses wins +216214% vs other
Installs winner Udemy Online Video Courses wins +127700% vs other
MAU winner Udemy Online Video Courses wins +129903% vs other
Rating winner Udemy Online Video Courses wins +5% vs other

Why Udemy Online Video Courses is winning

Top 4 reasons - backed by the public App Store / Play Store numbers.

  1. Udemy Online Video Courses earns roughly 2163× more per month than Retain Cards: AI Flashcards - $322.3K vs $149.
  2. Aggressive pricing. Udemy Online Video Courses undercuts at $9.99/mo vs $12.99/mo - converts a higher % of free users.
  3. Bigger install base. Udemy Online Video Courses has ~8.4M lifetime installs vs Retain Cards: AI Flashcards's ~7K - 1278.0× the funnel top.
  4. More monetization surfaces. Udemy Online Video Courses runs 10 IAP tiers vs 6 - more chances to convert users at the right price.

→ Find more apps with this revenue gap · Full Udemy Online Video Courses report

Side-by-side metrics

Bars scale to whichever app is bigger on that row. Green = winner.

Retain Cards: AI Flashcards
vs
Udemy Online Video Courses
Monthly revenue (est.)?
$149
▶
$322.3K
Annual revenue (est.)
$1.8K
▶
$3.87M
Lifetime installs (est.)
7K
▶
8.4M
Monthly active users (est.)?
765.6
▶
995K
App Store rating
4.50★
▶
4.73★
Total ratings
132
▶
77K
US grossing rank
-
=
-
Cheapest monthly sub
$12.99
◀
$9.99
IAP tiers detected
6 tiers
▶
10 tiers

Retain Cards: AI Flashcards

Retain Labs GmbH
App Store
Category
Education
Price
Free
Released
May 7, 2025
Last updated
Apr 24, 2026
File size
9.5 MB
Content rating
4+
Version
2.5
Languages
Danish, Dutch, English, Finnish, French, German +5 more
View full Retain Cards: AI Flashcards report →

Udemy Online Video Courses

Udemy
App Store
Category
Education
Price
Free
Released
Oct 16, 2012
Last updated
May 4, 2026
File size
138.8 MB
Content rating
4+
Version
8.101.0
Languages
Dutch, English, French, German, Indonesian, Italian +12 more
View full Udemy Online Video Courses report →

Retain Cards: AI Flashcards trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Udemy Online Video Courses trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Related app pages

Retain Cards: AI Flashcards App Store page →Udemy Online Video Courses App Store page →

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FAQ

Which makes more money, Retain Cards: AI Flashcards or Udemy Online Video Courses? v
Udemy Online Video Courses earns about $322.3K per month, while Retain Cards: AI Flashcards earns about $149. That is a 2163.1× revenue gap (~$322.2K more per month for Udemy Online Video Courses). Annual revenue: Retain Cards: AI Flashcards ≈ $1.8K/year, Udemy Online Video Courses ≈ $3.87M/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Retain Cards: AI Flashcards or Udemy Online Video Courses? v
Udemy Online Video Courses leads with about 8.4M estimated downloads vs 7K for Retain Cards: AI Flashcards - a 1278.0× gap. Retain Cards: AI Flashcards's App Store downloads are estimated from 132 ratings × the standard 1:75 ratio. Udemy Online Video Courses's App Store downloads are estimated from 77K ratings.
Are Retain Cards: AI Flashcards and Udemy Online Video Courses in the same App Store category and competing for the same money? v
Yes - both apps sit in the Education category, which means they compete directly for the same paying users and category-level wallet share. Direct competitors, head-to-head.
What in-app purchases and subscription pricing do Retain Cards: AI Flashcards and Udemy Online Video Courses offer? v
Retain Cards: AI Flashcards: IAP range 6 tiers detected. Udemy Online Video Courses: IAP range 10 tiers detected. Retain Cards: AI Flashcards runs a "Subscription (~$5.99/mo)" monetization model; Udemy Online Video Courses runs "Subscription (~$9.99/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Retain Cards: AI Flashcards or Udemy Online Video Courses? v
Udemy Online Video Courses edges ahead with ★ 4.7 vs ★ 4.5 (gap of 0.2 stars). Rating volume: Retain Cards: AI Flashcards 132 ratings, Udemy Online Video Courses 77K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Retain Cards: AI Flashcards vs Udemy Online Video Courses revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $149 for Retain Cards: AI Flashcards and $322.3K for Udemy Online Video Courses are derived from App Store grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Education) - net of the 15-30% Apple/Google store cut. Real revenue depends on country mix, retention, refunds and ad fill rate, none of which Apple or Google publish.
How do I compare Retain Cards: AI Flashcards or Udemy Online Video Courses to a different App Store app? v
Use the search box at the bottom of this page or paste any two App Store links into the homepage tool. We auto-generate a permanent comparison URL with revenue, downloads, IAP tiers, subscription pricing and grossing rank for both apps.