CITB Op/Spec HS&E test vs English Grammar - AI Tutor

CITB Op/Spec HS&E test

CITB
App Store
$112/mo
~$1.3K/yr · 600 installs
VS

English Grammar - AI Tutor

VietDevPro
Google Play
$161.9K/mo
~$1.94M/yr · 5.7M installs
Revenue winner English Grammar - AI Tutor wins +144496% vs other
Installs winner English Grammar - AI Tutor wins +942849% vs other
MAU winner English Grammar - AI Tutor wins +966228% vs other
Rating winner CITB Op/Spec HS&E test wins +11% vs other

Why English Grammar - AI Tutor is winning

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

  1. English Grammar - AI Tutor earns roughly 1446× more per month than CITB Op/Spec HS&E test - $161.9K vs $112.
  2. Subscription model. English Grammar - AI Tutor runs a $9.97/mo subscription that compounds; CITB Op/Spec HS&E test relies on one-shot IAP or ads.
  3. Bigger install base. English Grammar - AI Tutor has ~5.7M lifetime installs vs CITB Op/Spec HS&E test's ~600 - 9429.5× the funnel top.

→ Find more apps with this revenue gap · Full English Grammar - AI Tutor report

Side-by-side metrics

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

CITB Op/Spec HS&E test
vs
English Grammar - AI Tutor
Monthly revenue (est.)?
$112
▶
$161.9K
Annual revenue (est.)
$1.3K
▶
$1.94M
Lifetime installs (est.)
600
▶
5.7M
Monthly active users (est.)?
72.6
▶
702K
App Store rating
5.00★
◀
4.51★
Total ratings
12
▶
51K
US grossing rank
-
=
-
Cheapest monthly sub
No sub
▶
$9.97
IAP tiers detected
0 tiers
=
0 tiers

CITB Op/Spec HS&E test

CITB
App Store
Category
Education
Price
USD6.99
Released
May 16, 2019
Last updated
Jan 8, 2026
File size
148.2 MB
Content rating
12+
Version
6.0.52
Languages
English
View full CITB Op/Spec HS&E test report →

English Grammar - AI Tutor

VietDevPro
Google Play
Category
Education
Price
Free
Released
May 15, 2024
Last updated
Jun 19, 2026
File size
-
Content rating
Everyone
Version
1.1.0.19
Languages
-
View full English Grammar - AI Tutor report →

CITB Op/Spec HS&E test trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

English Grammar - AI Tutor trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

Related app pages

CITB Op/Spec HS&E test App Store page →English Grammar - AI Tutor Play Store page →

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Compare another pair

FAQ

Which makes more money, CITB Op/Spec HS&E test or English Grammar - AI Tutor? v
English Grammar - AI Tutor earns about $161.9K per month, while CITB Op/Spec HS&E test earns about $112. That is a 1446.0× revenue gap (~$161.8K more per month for English Grammar - AI Tutor). Annual revenue: CITB Op/Spec HS&E test ≈ $1.3K/year, English Grammar - AI Tutor ≈ $1.94M/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, CITB Op/Spec HS&E test or English Grammar - AI Tutor? v
English Grammar - AI Tutor leads with about 5.7M estimated downloads vs 600 for CITB Op/Spec HS&E test - a 9429.5× gap. CITB Op/Spec HS&E test's App Store downloads are estimated from 12 ratings × the standard 1:75 ratio. English Grammar - AI Tutor reports 5,000,000+ installs on Google Play.
Are CITB Op/Spec HS&E test and English Grammar - AI Tutor 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 CITB Op/Spec HS&E test and English Grammar - AI Tutor offer? v
CITB Op/Spec HS&E test: no IAP detected on the public listing. English Grammar - AI Tutor: IAP range $1.99 - $49.99 per item. CITB Op/Spec HS&E test runs a "Paid app ($6.99)" monetization model; English Grammar - AI Tutor runs "Subscription (~$9.97/mo, language)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, CITB Op/Spec HS&E test or English Grammar - AI Tutor? v
CITB Op/Spec HS&E test edges ahead with ★ 5.0 vs ★ 4.5 (gap of 0.5 stars). Rating volume: CITB Op/Spec HS&E test 12 ratings, English Grammar - AI Tutor 134 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these CITB Op/Spec HS&E test vs English Grammar - AI Tutor revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $112 for CITB Op/Spec HS&E test and $161.9K for English Grammar - AI Tutor 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 CITB Op/Spec HS&E test or English Grammar - AI Tutor 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.