Forma: PDF Document Editor vs Grammarly-AI Writing Assistant
Forma: PDF Document Editor
BPMobile
App Store
$0/mo
~$0/yr · 2.8M installs
VS
Grammarly-AI Writing Assistant
Grammarly, Inc.
Google Play
$16.57M/mo
~$198.81M/yr · 59.8M installs
Revenue winner
Grammarly-AI Writing Assistant wins
+1656752100% vs other
Installs winner
Grammarly-AI Writing Assistant wins
+2058% vs other
MAU winner
Grammarly-AI Writing Assistant wins
+1206% vs other
Rating winner
Forma: PDF Document Editor wins
+11% vs other
Why Grammarly-AI Writing Assistant is winning
Top 3 reasons - backed by the public App Store / Play Store numbers.
- Grammarly-AI Writing Assistant earns roughly 16567521× more per month than Forma: PDF Document Editor - $16.57M vs $0.
- Subscription model. Grammarly-AI Writing Assistant runs a $64.79/mo subscription that compounds; Forma: PDF Document Editor relies on one-shot IAP or ads.
- Bigger install base. Grammarly-AI Writing Assistant has ~59.8M lifetime installs vs Forma: PDF Document Editor's ~2.8M - 21.6× the funnel top.
→ Find more apps with this revenue gap · Full Grammarly-AI Writing Assistant report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
Forma: PDF Document Editor
vs
Grammarly-AI Writing Assistant
Monthly revenue (est.)?
$0
▶
$16.57M
Annual revenue (est.)
$0
▶
$198.81M
Lifetime installs (est.)
2.8M
▶
59.8M
Monthly active users (est.)?
828K
▶
10.8M
App Store rating
4.69★
◀
4.24★
Total ratings
25K
▶
261K
US grossing rank
-
=
-
Cheapest monthly sub
No sub
▶
$64.79
IAP tiers detected
0 tiers
=
0 tiers
- Category
- Productivity
- Price
- Free
- Released
- Feb 7, 2023
- Last updated
- Jun 25, 2026
- File size
- 199.4 MB
- Content rating
- 4+
- Version
- 1.40
- Languages
- Danish, Dutch, English, French, German, Hindi +14 more
- Category
- Productivity
- Price
- Free
- Released
- Dec 11, 2017
- Last updated
- Jun 30, 2026
- File size
- -
- Content rating
- Everyone
- Version
- 2.110.100044
- Languages
- -
Forma: PDF Document Editor trajectory
Grammarly-AI Writing Assistant trajectory
FAQ
Which makes more money, Forma: PDF Document Editor or Grammarly-AI Writing Assistant? v
Grammarly-AI Writing Assistant earns about $16.57M per month, while Forma: PDF Document Editor earns about $0. That is a ∞× revenue gap (~$16.57M more per month for Grammarly-AI Writing Assistant). Annual revenue: Forma: PDF Document Editor ≈ $0/year, Grammarly-AI Writing Assistant ≈ $198.81M/year. Estimates are derived from public App Store / Google Play signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Forma: PDF Document Editor or Grammarly-AI Writing Assistant? v
Grammarly-AI Writing Assistant leads with about 59.8M estimated downloads vs 2.8M for Forma: PDF Document Editor - a 21.6× gap. Forma: PDF Document Editor's App Store downloads are estimated from 25K ratings × the standard 1:75 ratio. Grammarly-AI Writing Assistant reports 50,000,000+ installs on Google Play.
Are Forma: PDF Document Editor and Grammarly-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 Forma: PDF Document Editor and Grammarly-AI Writing Assistant offer? v
Forma: PDF Document Editor: no IAP detected on the public listing. Grammarly-AI Writing Assistant: IAP range $29.99 - $139.99 per item. Forma: PDF Document Editor runs a "No App Store revenue (monetizes off-store)" monetization model; Grammarly-AI Writing Assistant runs "Subscription (~$64.79/mo, ai)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Forma: PDF Document Editor or Grammarly-AI Writing Assistant? v
Forma: PDF Document Editor edges ahead with ★ 4.7 vs ★ 4.2 (gap of 0.5 stars). Rating volume: Forma: PDF Document Editor 25K ratings, Grammarly-AI Writing Assistant 26K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Forma: PDF Document Editor vs Grammarly-AI Writing Assistant revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $0 for Forma: PDF Document Editor and $16.57M for Grammarly-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 Forma: PDF Document Editor or Grammarly-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.