Grammarly: AI Keyboard & Notes vs TeraBox: 1TB Cloud & AI Space

Grammarly: AI Keyboard & Notes

Superhuman Platform Inc
App Store
$2.41M/mo
~$28.98M/yr · 9.8M installs
VS

TeraBox: 1TB Cloud & AI Space

FLEXTECH INC.
App Store
$66.6K/mo
~$799.6K/yr · 651K installs
Revenue winner Grammarly: AI Keyboard & Notes wins +3524% vs other
Installs winner Grammarly: AI Keyboard & Notes wins +1408% vs other
MAU winner Grammarly: AI Keyboard & Notes wins +1448% vs other
Rating winner Grammarly: AI Keyboard & Notes wins +8% vs other

Why Grammarly: AI Keyboard & Notes is winning

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

  1. Grammarly: AI Keyboard & Notes earns roughly 36× more per month than TeraBox: 1TB Cloud & AI Space - $2.41M vs $66.6K.
  2. Premium pricing. Grammarly: AI Keyboard & Notes charges $17.99/mo vs TeraBox: 1TB Cloud & AI Space's $2.99/mo - higher ARPU per converted user.
  3. Bigger install base. Grammarly: AI Keyboard & Notes has ~9.8M lifetime installs vs TeraBox: 1TB Cloud & AI Space's ~651K - 15.1× the funnel top.
  4. Better app store reviews. Grammarly: AI Keyboard & Notes sits at 4.66★ vs 4.30★ - 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
TeraBox: 1TB Cloud & AI Space
Monthly revenue (est.)?
$2.41M
◀
$66.6K
Annual revenue (est.)
$28.98M
◀
$799.6K
Lifetime installs (est.)
9.8M
◀
651K
Monthly active users (est.)?
6.1M
◀
394K
App Store rating
4.66★
◀
4.30★
Total ratings
218K
◀
19K
US grossing rank
-
=
-
Cheapest monthly sub
$17.99
◀
$2.99
IAP tiers detected
5 tiers
▶
8 tiers

Grammarly: AI Keyboard & Notes

Superhuman Platform Inc
App Store
Category
Productivity
Price
Free
Released
Nov 2, 2017
Last updated
Jun 26, 2026
File size
304.4 MB
Content rating
12+
Version
12.2.1
Languages
English, Spanish
View full Grammarly: AI Keyboard & Notes report →

TeraBox: 1TB Cloud & AI Space

FLEXTECH INC.
App Store
Category
Productivity
Price
Free
Released
Jun 22, 2020
Last updated
Jul 1, 2026
File size
564.6 MB
Content rating
4+
Version
4.20.0
Languages
Arabic, English, Hindi, Indonesian, Japanese, Korean +8 more
View full TeraBox: 1TB Cloud & AI Space report →

Grammarly: AI Keyboard & Notes trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

TeraBox: 1TB Cloud & AI Space trajectory

AugSepOctNovDecJanFebMarAprMayJunJul

Related app pages

Grammarly: AI Keyboard & Notes App Store page →TeraBox: 1TB Cloud & AI Space App Store page →

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Compare another pair

FAQ

Which makes more money, Grammarly: AI Keyboard & Notes or TeraBox: 1TB Cloud & AI Space? v
Grammarly: AI Keyboard & Notes earns about $2.41M per month, while TeraBox: 1TB Cloud & AI Space earns about $66.6K. That is a 36.2× revenue gap (~$2.35M more per month for Grammarly: AI Keyboard & Notes). Annual revenue: Grammarly: AI Keyboard & Notes ≈ $28.98M/year, TeraBox: 1TB Cloud & AI Space ≈ $799.6K/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Grammarly: AI Keyboard & Notes or TeraBox: 1TB Cloud & AI Space? v
Grammarly: AI Keyboard & Notes leads with about 9.8M estimated downloads vs 651K for TeraBox: 1TB Cloud & AI Space - a 15.1× gap. Grammarly: AI Keyboard & Notes's App Store downloads are estimated from 218K ratings × the standard 1:75 ratio. TeraBox: 1TB Cloud & AI Space's App Store downloads are estimated from 19K ratings.
Are Grammarly: AI Keyboard & Notes and TeraBox: 1TB Cloud & AI Space in the same App Store category 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 TeraBox: 1TB Cloud & AI Space offer? v
Grammarly: AI Keyboard & Notes: IAP range 5 tiers detected. TeraBox: 1TB Cloud & AI Space: IAP range 8 tiers detected. Grammarly: AI Keyboard & Notes runs a "Subscription (~$7.00/mo, ai)" monetization model; TeraBox: 1TB Cloud & AI Space runs "Subscription (~$2.99/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 TeraBox: 1TB Cloud & AI Space? v
Grammarly: AI Keyboard & Notes edges ahead with ★ 4.7 vs ★ 4.3 (gap of 0.4 stars). Rating volume: Grammarly: AI Keyboard & Notes 218K ratings, TeraBox: 1TB Cloud & AI Space 19K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Grammarly: AI Keyboard & Notes vs TeraBox: 1TB Cloud & AI Space revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $2.41M for Grammarly: AI Keyboard & Notes and $66.6K for TeraBox: 1TB Cloud & AI Space are derived from App Store grossing rank, 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 TeraBox: 1TB Cloud & AI Space 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.