CITB Op/Spec HS&E test vs Notan: Grade Calculator
CITB Op/Spec HS&E test
CITB
App Store
$112/mo
~$1.3K/yr · 600 installs
VS
Notan: Grade Calculator
Tien Do Nam
Google Play
$10.3K/mo
~$124.0K/yr · 797K installs
Revenue winner
Notan: Grade Calculator wins
+9126% vs other
Installs winner
Notan: Grade Calculator wins
+132816% vs other
MAU winner
Notan: Grade Calculator wins
+98763% vs other
Rating winner
CITB Op/Spec HS&E test wins
+2% vs other
Why Notan: Grade Calculator is winning
Top 2 reasons - backed by the public App Store / Play Store numbers.
- Notan: Grade Calculator earns roughly 92× more per month than CITB Op/Spec HS&E test - $10.3K vs $112.
- Bigger install base. Notan: Grade Calculator has ~797K lifetime installs vs CITB Op/Spec HS&E test's ~600 - 1329.2× the funnel top.
→ Find more apps with this revenue gap · Full Notan: Grade Calculator report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
CITB Op/Spec HS&E test
vs
Notan: Grade Calculator
Monthly revenue (est.)?
$112
▶
$10.3K
Annual revenue (est.)
$1.3K
▶
$124.0K
Lifetime installs (est.)
600
▶
797K
Monthly active users (est.)?
72.6
▶
72K
App Store rating
5.00★
◀
4.92★
Total ratings
12
▶
3K
US grossing rank
-
=
-
Cheapest monthly sub
No sub
=
No sub
IAP tiers detected
0 tiers
=
0 tiers
- 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
- Category
- Education
- Price
- Free
- Released
- Jan 4, 2020
- Last updated
- Mar 24, 2026
- File size
- -
- Content rating
- Everyone
- Version
- 2.19.6
- Languages
- -
CITB Op/Spec HS&E test trajectory
Notan: Grade Calculator trajectory
FAQ
Which makes more money, CITB Op/Spec HS&E test or Notan: Grade Calculator? v
Notan: Grade Calculator earns about $10.3K per month, while CITB Op/Spec HS&E test earns about $112. That is a 92.3× revenue gap (~$10.2K more per month for Notan: Grade Calculator). Annual revenue: CITB Op/Spec HS&E test ≈ $1.3K/year, Notan: Grade Calculator ≈ $124.0K/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 Notan: Grade Calculator? v
Notan: Grade Calculator leads with about 797K estimated downloads vs 600 for CITB Op/Spec HS&E test - a 1329.2× gap. CITB Op/Spec HS&E test's App Store downloads are estimated from 12 ratings × the standard 1:75 ratio. Notan: Grade Calculator reports 500,000+ installs on Google Play.
Are CITB Op/Spec HS&E test and Notan: Grade Calculator 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 Notan: Grade Calculator offer? v
CITB Op/Spec HS&E test: no IAP detected on the public listing. Notan: Grade Calculator: IAP range $4.99 per item. CITB Op/Spec HS&E test runs a "Paid app ($6.99)" monetization model; Notan: Grade Calculator runs "Free + IAP (tiers not exposed by store)". 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 Notan: Grade Calculator? v
CITB Op/Spec HS&E test edges ahead with ★ 5.0 vs ★ 4.9 (gap of 0.1 stars). Rating volume: CITB Op/Spec HS&E test 12 ratings, Notan: Grade Calculator 2 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these CITB Op/Spec HS&E test vs Notan: Grade Calculator 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 $10.3K for Notan: Grade Calculator 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 Notan: Grade Calculator 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.