Answer.AI - Your AI tutor vs Notan: Grade Calculator
Answer.AI - Your AI tutor
ANSWER AI LAB INC
App Store
$427.7K/mo
~$5.13M/yr · 25.0M installs
VS
Notan: Grade Calculator
Tien Do Nam
Google Play
$10.3K/mo
~$124.0K/yr · 797K installs
Revenue winner
Answer.AI - Your AI tutor wins
+4040% vs other
Installs winner
Answer.AI - Your AI tutor wins
+3029% vs other
MAU winner
Answer.AI - Your AI tutor wins
+2994% vs other
Rating winner
Notan: Grade Calculator wins
+5% vs other
Why Answer.AI - Your AI tutor is winning
Top 4 reasons - backed by the public App Store / Play Store numbers.
- Answer.AI - Your AI tutor earns roughly 41× more per month than Notan: Grade Calculator - $427.7K vs $10.3K.
- Subscription model. Answer.AI - Your AI tutor runs a $9.99/mo subscription that compounds; Notan: Grade Calculator relies on one-shot IAP or ads.
- Bigger install base. Answer.AI - Your AI tutor has ~25.0M lifetime installs vs Notan: Grade Calculator's ~797K - 31.3× the funnel top.
- More monetization surfaces. Answer.AI - Your AI tutor runs 7 IAP tiers vs 0 - more chances to convert users at the right price.
→ Find more apps with this revenue gap · Full Answer.AI - Your AI tutor report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
Answer.AI - Your AI tutor
vs
Notan: Grade Calculator
Monthly revenue (est.)?
$427.7K
◀
$10.3K
Annual revenue (est.)
$5.13M
◀
$124.0K
Lifetime installs (est.)
25.0M
◀
797K
Monthly active users (est.)?
2.2M
◀
72K
App Store rating
4.69★
▶
4.92★
Total ratings
166K
◀
3K
US grossing rank
-
=
-
Cheapest monthly sub
$9.99
◀
No sub
IAP tiers detected
7 tiers
◀
0 tiers
- Category
- Education
- Price
- Free
- Released
- Mar 20, 2023
- Last updated
- Apr 2, 2026
- File size
- 194.9 MB
- Content rating
- 4+
- Version
- 2.10.9
- Languages
- Arabic, English, French, German, Indonesian, Italian +3 more
- Category
- Education
- Price
- Free
- Released
- Jan 4, 2020
- Last updated
- Mar 24, 2026
- File size
- -
- Content rating
- Everyone
- Version
- 2.19.6
- Languages
- -
Answer.AI - Your AI tutor trajectory
Notan: Grade Calculator trajectory
FAQ
Which makes more money, Answer.AI - Your AI tutor or Notan: Grade Calculator? v
Answer.AI - Your AI tutor earns about $427.7K per month, while Notan: Grade Calculator earns about $10.3K. That is a 41.4× revenue gap (~$417.4K more per month for Answer.AI - Your AI tutor). Annual revenue: Answer.AI - Your AI tutor ≈ $5.13M/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, Answer.AI - Your AI tutor or Notan: Grade Calculator? v
Answer.AI - Your AI tutor leads with about 25.0M estimated downloads vs 797K for Notan: Grade Calculator - a 31.3× gap. Answer.AI - Your AI tutor's App Store downloads are estimated from 166K ratings × the standard 1:75 ratio. Notan: Grade Calculator reports 500,000+ installs on Google Play.
Are Answer.AI - Your AI tutor 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 Answer.AI - Your AI tutor and Notan: Grade Calculator offer? v
Answer.AI - Your AI tutor: IAP range 7 tiers detected. Notan: Grade Calculator: IAP range $4.99 per item. Answer.AI - Your AI tutor runs a "Subscription (~$5.99/mo)" 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, Answer.AI - Your AI tutor or Notan: Grade Calculator? v
Notan: Grade Calculator edges ahead with ★ 4.9 vs ★ 4.7 (gap of 0.2 stars). Rating volume: Answer.AI - Your AI tutor 166K ratings, Notan: Grade Calculator 2 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Answer.AI - Your AI tutor vs Notan: Grade Calculator revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $427.7K for Answer.AI - Your AI tutor 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 Answer.AI - Your AI tutor 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.