DuckDuckGo, Duck.ai, & VPN vs Lingual Coach: Learn with AI

DuckDuckGo, Duck.ai, & VPN

DuckDuckGo
Google Play
$3.79M/mo
~$45.48M/yr · 83.8M installs
VS

Lingual Coach: Learn with AI

Goldlab Pro
Google Play
$91.8K/mo
~$1.10M/yr · 12.6M installs
Revenue winner DuckDuckGo, Duck.ai, & VPN wins +4028% vs other
Installs winner DuckDuckGo, Duck.ai, & VPN wins +566% vs other
MAU winner DuckDuckGo, Duck.ai, & VPN wins +487% vs other
Rating winner DuckDuckGo, Duck.ai, & VPN wins +11% vs other

Why DuckDuckGo, Duck.ai, & VPN is winning

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

  1. DuckDuckGo, Duck.ai, & VPN earns roughly 41× more per month than Lingual Coach: Learn with AI - $3.79M vs $91.8K.
  2. Premium pricing. DuckDuckGo, Duck.ai, & VPN charges $44.70/mo vs Lingual Coach: Learn with AI's $10.60/mo - higher ARPU per converted user.
  3. Bigger install base. DuckDuckGo, Duck.ai, & VPN has ~83.8M lifetime installs vs Lingual Coach: Learn with AI's ~12.6M - 6.7× the funnel top.
  4. Better app store reviews. DuckDuckGo, Duck.ai, & VPN sits at 4.70★ vs 4.22★ - store algorithms reward higher-rated apps with more impressions.

→ Find more apps with this revenue gap · Full DuckDuckGo, Duck.ai, & VPN report

Side-by-side metrics

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

DuckDuckGo, Duck.ai, & VPN
vs
Lingual Coach: Learn with AI
Monthly revenue (est.)?
$3.79M
◀
$91.8K
Annual revenue (est.)
$45.48M
◀
$1.10M
Lifetime installs (est.)
83.8M
◀
12.6M
Monthly active users (est.)?
2.5M
◀
428K
App Store rating
4.70★
◀
4.22★
Total ratings
2.4M
◀
34K
US grossing rank
-
=
-
Cheapest monthly sub
$44.70
◀
$10.60
IAP tiers detected
0 tiers
=
0 tiers

DuckDuckGo, Duck.ai, & VPN

DuckDuckGo
Google Play
Category
Productivity
Price
Free
Released
Apr 8, 2011
Last updated
May 6, 2026
File size
-
Content rating
Everyone
Version
5.278.1
Languages
-
View full DuckDuckGo, Duck.ai, & VPN report →

Lingual Coach: Learn with AI

Goldlab Pro
Google Play
Category
Education
Price
Free
Released
Nov 22, 2023
Last updated
Feb 9, 2026
File size
-
Content rating
Everyone
Version
4.8
Languages
-
View full Lingual Coach: Learn with AI report →

DuckDuckGo, Duck.ai, & VPN trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Lingual Coach: Learn with AI trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Related app pages

DuckDuckGo, Duck.ai, & VPN Play Store page →Lingual Coach: Learn with AI Play Store page →

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FAQ

Which makes more money, DuckDuckGo, Duck.ai, & VPN or Lingual Coach: Learn with AI? v
DuckDuckGo, Duck.ai, & VPN earns about $3.79M per month, while Lingual Coach: Learn with AI earns about $91.8K. That is a 41.3× revenue gap (~$3.70M more per month for DuckDuckGo, Duck.ai, & VPN). Annual revenue: DuckDuckGo, Duck.ai, & VPN ≈ $45.48M/year, Lingual Coach: Learn with AI ≈ $1.10M/year. Estimates are derived from public Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, DuckDuckGo, Duck.ai, & VPN or Lingual Coach: Learn with AI? v
DuckDuckGo, Duck.ai, & VPN leads with about 83.8M estimated downloads vs 12.6M for Lingual Coach: Learn with AI - a 6.7× gap. DuckDuckGo, Duck.ai, & VPN reports 50,000,000+ installs on Google Play. Lingual Coach: Learn with AI reports 10,000,000+ installs on Google Play.
Are DuckDuckGo, Duck.ai, & VPN and Lingual Coach: Learn with AI in the same Google Play category and competing for the same money? v
No - DuckDuckGo, Duck.ai, & VPN is in Productivity and Lingual Coach: Learn with AI is in Education. They share screen-time attention but earn money in different niches: DuckDuckGo, Duck.ai, & VPN from productivity monetization patterns, Lingual Coach: Learn with AI from education.
What in-app purchases and subscription pricing do DuckDuckGo, Duck.ai, & VPN and Lingual Coach: Learn with AI offer? v
DuckDuckGo, Duck.ai, & VPN: IAP range $9.99 - $199.99 per item. Lingual Coach: Learn with AI: IAP range $3.75 - $29.99 per item. DuckDuckGo, Duck.ai, & VPN runs a "Subscription (~$44.70/mo, security)" monetization model; Lingual Coach: Learn with AI runs "Subscription (~$10.60/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, DuckDuckGo, Duck.ai, & VPN or Lingual Coach: Learn with AI? v
DuckDuckGo, Duck.ai, & VPN edges ahead with ★ 4.7 vs ★ 4.2 (gap of 0.5 stars). Rating volume: DuckDuckGo, Duck.ai, & VPN 378K ratings, Lingual Coach: Learn with AI 340 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these DuckDuckGo, Duck.ai, & VPN vs Lingual Coach: Learn with AI revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $3.79M for DuckDuckGo, Duck.ai, & VPN and $91.8K for Lingual Coach: Learn with AI are derived from Google Play grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Productivity / 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 DuckDuckGo, Duck.ai, & VPN or Lingual Coach: Learn with AI to a different Google Play app? v
Use the search box at the bottom of this page or paste any two 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.