Grammarly: AI Keyboard & Notes vs QuillBot: AI Writing Assistant
Grammarly: AI Keyboard & Notes
Grammarly, Inc
App Store
$3.95M/mo
~$47.41M/yr · 9.6M installs
VS
QuillBot: AI Writing Assistant
QuillBot
Google Play
$2.68M/mo
~$32.17M/yr · 8.5M installs
Revenue winner
Grammarly: AI Keyboard & Notes wins
+47% vs other
Installs winner
Grammarly: AI Keyboard & Notes wins
+13% vs other
MAU winner
Grammarly: AI Keyboard & Notes wins
+136% vs other
Rating winner
Grammarly: AI Keyboard & Notes wins
+15% vs other
Why Grammarly: AI Keyboard & Notes is winning
Top 3 reasons - backed by the public App Store / Play Store numbers.
- Aggressive pricing. Grammarly: AI Keyboard & Notes undercuts at $29.99/mo vs $44.65/mo - converts a higher % of free users.
- More monetization surfaces. Grammarly: AI Keyboard & Notes runs 3 IAP tiers vs 0 - more chances to convert users at the right price.
- Better app store reviews. Grammarly: AI Keyboard & Notes sits at 4.66★ vs 4.06★ - store algorithms reward higher-rated apps with more impressions.
→ Find more apps with this revenue gap · Full Grammarly: AI Keyboard & Notes report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
Grammarly: AI Keyboard & Notes
vs
QuillBot: AI Writing Assistant
Monthly revenue (est.)?
$3.95M
◀
$2.68M
Annual revenue (est.)
$47.41M
◀
$32.17M
Lifetime installs (est.)
9.6M
◀
8.5M
Monthly active users (est.)?
6.0M
◀
2.5M
App Store rating
4.66★
◀
4.06★
Total ratings
214K
◀
20K
US grossing rank
-
=
-
Cheapest monthly sub
$29.99
▶
$44.65
IAP tiers detected
3 tiers
◀
0 tiers
- Category
- Productivity
- Price
- Free
- Released
- Nov 2, 2017
- Last updated
- May 6, 2026
- File size
- 260.0 MB
- Content rating
- 12+
- Version
- 10.2.0
- Languages
- English, Spanish
- Category
- Productivity
- Price
- Free
- Released
- Oct 20, 2023
- Last updated
- May 5, 2026
- File size
- -
- Content rating
- Everyone
- Version
- 3.19.0
- Languages
- -
Grammarly: AI Keyboard & Notes trajectory
QuillBot: AI Writing Assistant trajectory
FAQ
Which makes more money, Grammarly: AI Keyboard & Notes or QuillBot: AI Writing Assistant? v
Grammarly: AI Keyboard & Notes earns about $3.95M per month, while QuillBot: AI Writing Assistant earns about $2.68M. That is a 1.5× revenue gap (~$1.27M more per month for Grammarly: AI Keyboard & Notes). Annual revenue: Grammarly: AI Keyboard & Notes ≈ $47.41M/year, QuillBot: AI Writing Assistant ≈ $32.17M/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Grammarly: AI Keyboard & Notes or QuillBot: AI Writing Assistant? v
Grammarly: AI Keyboard & Notes leads with about 9.6M estimated downloads vs 8.5M for QuillBot: AI Writing Assistant - a 1.1× gap. Grammarly: AI Keyboard & Notes's App Store downloads are estimated from 214K ratings × the standard 1:75 ratio. QuillBot: AI Writing Assistant reports 5,000,000+ installs on Google Play.
Are Grammarly: AI Keyboard & Notes and QuillBot: AI Writing Assistant in the same App Store category on each store and competing for the same money? v
Yes - both apps sit in the Productivity 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 Grammarly: AI Keyboard & Notes and QuillBot: AI Writing Assistant offer? v
Grammarly: AI Keyboard & Notes: IAP range 3 tiers detected. QuillBot: AI Writing Assistant: IAP range $19.95 - $99.95 per item. Grammarly: AI Keyboard & Notes runs a "Subscription (~$11.67/mo, ai)" monetization model; QuillBot: AI Writing Assistant runs "Subscription (~$44.65/mo, ai)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Grammarly: AI Keyboard & Notes or QuillBot: AI Writing Assistant? v
Grammarly: AI Keyboard & Notes edges ahead with ★ 4.7 vs ★ 4.1 (gap of 0.6 stars). Rating volume: Grammarly: AI Keyboard & Notes 214K ratings, QuillBot: AI Writing Assistant 223 ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Grammarly: AI Keyboard & Notes vs QuillBot: AI Writing Assistant revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $3.95M for Grammarly: AI Keyboard & Notes and $2.68M for QuillBot: AI Writing Assistant are derived from App Store grossing rank / Google Play install ranges, scraped IAP tiers, ratings volume and category benchmarks (Productivity) - 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 Grammarly: AI Keyboard & Notes or QuillBot: AI Writing Assistant 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.