CITB Op/Spec HS&E test vs PrepGo: AP® Exam Prep

CITB Op/Spec HS&E test

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

PrepGo: AP® Exam Prep

StudyX Inc.
App Store
$958/mo
~$11.5K/yr · 13K installs
Revenue winner PrepGo: AP® Exam Prep wins +755% vs other
Installs winner PrepGo: AP® Exam Prep wins +2063% vs other
MAU winner PrepGo: AP® Exam Prep wins +1938% vs other
Rating winner CITB Op/Spec HS&E test wins +18% vs other

Why PrepGo: AP® Exam Prep is winning

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

  1. PrepGo: AP® Exam Prep earns roughly 9× more per month than CITB Op/Spec HS&E test - $958 vs $112.
  2. Subscription model. PrepGo: AP® Exam Prep runs a $19.99/mo subscription that compounds; CITB Op/Spec HS&E test relies on one-shot IAP or ads.
  3. Bigger install base. PrepGo: AP® Exam Prep has ~13K lifetime installs vs CITB Op/Spec HS&E test's ~600 - 21.6× the funnel top.
  4. More monetization surfaces. PrepGo: AP® Exam Prep runs 4 IAP tiers vs 0 - more chances to convert users at the right price.

→ Find more apps with this revenue gap · Full PrepGo: AP® Exam Prep report

Side-by-side metrics

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

CITB Op/Spec HS&E test
vs
PrepGo: AP® Exam Prep
Monthly revenue (est.)?
$112
▶
$958
Annual revenue (est.)
$1.3K
▶
$11.5K
Lifetime installs (est.)
600
▶
13K
Monthly active users (est.)?
72.6
▶
1K
App Store rating
5.00★
◀
4.23★
Total ratings
12
▶
236
US grossing rank
-
=
-
Cheapest monthly sub
No sub
▶
$19.99
IAP tiers detected
0 tiers
▶
4 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 →

PrepGo: AP® Exam Prep

StudyX Inc.
App Store
Category
Education
Price
Free
Released
Nov 6, 2025
Last updated
May 8, 2026
File size
72.8 MB
Content rating
4+
Version
1.1.9
Languages
English
View full PrepGo: AP® Exam Prep report →

CITB Op/Spec HS&E test trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

PrepGo: AP® Exam Prep trajectory

JunJulAugSepOctNovDecJanFebMarAprMay

Related app pages

CITB Op/Spec HS&E test App Store page →PrepGo: AP® Exam Prep App Store page →

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Compare another pair

FAQ

Which makes more money, CITB Op/Spec HS&E test or PrepGo: AP® Exam Prep? v
PrepGo: AP® Exam Prep earns about $958 per month, while CITB Op/Spec HS&E test earns about $112. That is a 8.6× revenue gap (~$846 more per month for PrepGo: AP® Exam Prep). Annual revenue: CITB Op/Spec HS&E test ≈ $1.3K/year, PrepGo: AP® Exam Prep ≈ $11.5K/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, CITB Op/Spec HS&E test or PrepGo: AP® Exam Prep? v
PrepGo: AP® Exam Prep leads with about 13K estimated downloads vs 600 for CITB Op/Spec HS&E test - a 21.6× gap. CITB Op/Spec HS&E test's App Store downloads are estimated from 12 ratings × the standard 1:75 ratio. PrepGo: AP® Exam Prep's App Store downloads are estimated from 195 ratings.
Are CITB Op/Spec HS&E test and PrepGo: AP® Exam Prep 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 CITB Op/Spec HS&E test and PrepGo: AP® Exam Prep offer? v
CITB Op/Spec HS&E test: no IAP detected on the public listing. PrepGo: AP® Exam Prep: IAP range 4 tiers detected. CITB Op/Spec HS&E test runs a "Paid app ($6.99)" monetization model; PrepGo: AP® Exam Prep runs "Subscription (~$19.99/mo)". 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 PrepGo: AP® Exam Prep? v
CITB Op/Spec HS&E test edges ahead with ★ 5.0 vs ★ 4.2 (gap of 0.8 stars). Rating volume: CITB Op/Spec HS&E test 12 ratings, PrepGo: AP® Exam Prep 195 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these CITB Op/Spec HS&E test vs PrepGo: AP® Exam Prep 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 $958 for PrepGo: AP® Exam Prep 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 CITB Op/Spec HS&E test or PrepGo: AP® Exam Prep 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.