Retain Cards: AI Flashcards vs Luzia: AI Assistant & Chat 

Retain Cards: AI Flashcards

Retain Labs GmbH
App Store
$218/mo
~$2.6K/yr · 10K installs
VS

Luzia: AI Assistant & Chat 

FACTORIA ELCANO SL
Google Play
$1.82M/mo
~$21.78M/yr · 38.4M installs
Revenue winner Luzia: AI Assistant & Chat  wins +832490% vs other
Installs winner Luzia: AI Assistant & Chat  wins +395871% vs other
MAU winner Luzia: AI Assistant & Chat  wins +624578% vs other
Rating winner Retain Cards: AI Flashcards wins +2% vs other

Why Luzia: AI Assistant & Chat  is winning

Top 3 reasons - backed by the public App Store / Play Store numbers.

  1. Luzia: AI Assistant & Chat  earns roughly 8326× more per month than Retain Cards: AI Flashcards - $1.82M vs $218.
  2. Aggressive pricing. Luzia: AI Assistant & Chat  undercuts at $8.92/mo vs $12.99/mo - converts a higher % of free users.
  3. Bigger install base. Luzia: AI Assistant & Chat  has ~38.4M lifetime installs vs Retain Cards: AI Flashcards's ~10K - 3959.7× the funnel top.

Find more apps with this revenue gap · Full Luzia: AI Assistant & Chat  report

Side-by-side metrics

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

Retain Cards: AI Flashcards
vs
Luzia: AI Assistant & Chat 
Monthly revenue (est.)?
$218
$1.82M
Annual revenue (est.)
$2.6K
$21.78M
Lifetime installs (est.)
10K
38.4M
Monthly active users (est.)?
1K
7.0M
App Store rating
4.46★
4.39★
Total ratings
194
134K
US grossing rank
-
=
-
Cheapest monthly sub
$12.99
$8.92
IAP tiers detected
6 tiers
0 tiers

Retain Cards: AI Flashcards

Retain Labs GmbH
App Store
Category
Education
Price
Free
Released
May 7, 2025
Last updated
Jun 30, 2026
File size
9.8 MB
Content rating
4+
Version
2.7
Languages
Danish, Dutch, English, Finnish, French, German +6 more
View full Retain Cards: AI Flashcards report →

Luzia: AI Assistant & Chat 

FACTORIA ELCANO SL
Google Play
Category
Education
Price
Free
Released
Dec 1, 2023
Last updated
Jun 29, 2026
File size
-
Content rating
Everyone
Version
5.33.0
Languages
-
View full Luzia: AI Assistant & Chat  report →

Retain Cards: AI Flashcards trajectory

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Luzia: AI Assistant & Chat  trajectory

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FAQ

Which makes more money, Retain Cards: AI Flashcards or Luzia: AI Assistant & Chat ? v
Luzia: AI Assistant & Chat  earns about $1.82M per month, while Retain Cards: AI Flashcards earns about $218. That is a 8325.9× revenue gap (~$1.81M more per month for Luzia: AI Assistant & Chat ). Annual revenue: Retain Cards: AI Flashcards ≈ $2.6K/year, Luzia: AI Assistant & Chat  ≈ $21.78M/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Retain Cards: AI Flashcards or Luzia: AI Assistant & Chat ? v
Luzia: AI Assistant & Chat  leads with about 38.4M estimated downloads vs 10K for Retain Cards: AI Flashcards - a 3959.7× gap. Retain Cards: AI Flashcards's App Store downloads are estimated from 193 ratings × the standard 1:75 ratio. Luzia: AI Assistant & Chat  reports 10,000,000+ installs on Google Play.
Are Retain Cards: AI Flashcards and Luzia: AI Assistant & Chat  in the same App Store category on each store 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 Luzia: AI Assistant & Chat  offer? v
Retain Cards: AI Flashcards: IAP range 6 tiers detected. Luzia: AI Assistant & Chat : IAP range $1.99 - $39.99 per item. Retain Cards: AI Flashcards runs a "Subscription (~$5.99/mo)" monetization model; Luzia: AI Assistant & Chat  runs "Subscription (~$8.92/mo, ai)". 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 Luzia: AI Assistant & Chat ? v
Retain Cards: AI Flashcards edges ahead with ★ 4.5 vs ★ 4.4 (gap of 0.1 stars). Rating volume: Retain Cards: AI Flashcards 193 ratings, Luzia: AI Assistant & Chat  467 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Retain Cards: AI Flashcards vs Luzia: AI Assistant & Chat  revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $218 for Retain Cards: AI Flashcards and $1.82M for Luzia: AI Assistant & Chat  are derived from App Store grossing rank / Google Play install ranges, 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 Luzia: AI Assistant & Chat  to a different App Store app? v
Use the search box at the bottom of this page or paste any two App Store or Google Play 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.