QuillBot: AI Writing, Keyboard
64
Quality Score
Solid
QuillBot: AI Writing, Keyboard
Medium confidence
✍️ bumetric analysis
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QuillBot: AI Writing, Keyboard is an iOS app from QuillBot, a Learneo Inc. business in the Productivity category, currently rated 4.7★ across 2,630 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 64: Solid (established niche player). For a Productivity app, that means established niche player. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID tierFREE
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$100K
↳ What it cost to build · not monthly revenue
Likely range $75K – $135K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Slow ROI — current MRR is well below build cost
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| 📦 Asset bundle (224 MB) | +$40K |
| ⚙ Productivity complexity ×1.10 | +$9K |
Total estimate
$100K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$10K
↳ What it would sell for · not monthly revenue
Marketplace range $10K – $15K · 19× MRR multiple
💸
~0.1× build cost (under-water)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Productivity category multiple | +8% |
Final multiple
19× MRR
👥 Estimated audience size
195K
Lifetime downloads (US-equivalent)
Monthly active
58K
Daily active
26K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 Productivity engagement | ~75 installs / rating |
| 🔁 Productivity D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
44% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Stalled · 30/100MID TIERFREE (NO MONETIZATION)no growth momentumGrowth Velocity
5.0
Founder Strength
3.0
Product Quality
7.0
Revenue Strength
3.7
Monetization Maturity
0.5
Defensibility
2.6
Market Position
2.0
Operational Safety
0.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.7★ across 2,630 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: High — 4.1% refund mentions, 7% subscription complaints, scam/fraud mentions detected.
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $60K-$110K. Discount applied for operational risk..
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 9 of 9 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.7★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| Low install base (2,630 ratings)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| support teamREVIEW | +$900 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Single-language (English only)METRIC | −$400 | |
| Growing app (2y old)METRIC | +$200 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🆕 What's New · v2.5.0
Sign In & Sign Up — Smoother Than Ever!
Logging in and creating your QuillBot account is now quicker and more seamless.
Logging in and creating your QuillBot account is now quicker and more seamless.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- QuillBot: AI Writing, Keyboard
- Developer
- QuillBot, a Learneo Inc. business
- Bundle ID
- com.quillbot.app
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Create something great today
- Description
- Write effortlessly and efficiently with QuillBot's suite of AI tools. Paraphrase, check grammar, analyze tone, improve fluency, and more. Start doing your best work.
- Founded
- 2017
- HQ / Address
- Chicago
- Employees
- Not found
- Logo
- Available
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $619/mo
- Top-grossing rank
- 🇮🇳#39 /100
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- x.com/thequillbot
- linkedin.com/company/quillbot
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
- Socials
- facebook facebook.com/thequillbot · instagram instagram.com/thequillbot · linkedin linkedin.com/company/quillbot · tiktok tiktok.com/@thequillbot · twitter x.com/thequillbot · youtube youtube.com/@QuillBot
- Not found
- Phone
- Not found
- Contact page
- quillbot.com/contact?referrer=footer
- About page
- quillbot.com/upgrade/teams?referrer=f…
📈Ratings growth2,630 ratings+2994% lifetimeShow 3-year history estimate ▾
Tracked (56 weeks) Pre-tracking estimate (31 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution1 of 9 markets
🇮🇳
IN
Top-grossing rank: #39 / 100
Other markets
Outside top 100
in US, GB, DE, FR, JP, CA, AU, BR, IN
in US, GB, DE, FR, JP, CA, AU, BR, IN
This app currently ranks in only one of the 9 markets we monitor. Niche or regional apps often launch this way before global rollout. Rankings update daily.
📊Category Rank Trajectory#39 now · best #38 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
📝 About this app
Write without limits with QuillBot’s all-in-one AI writing assistant
How it works:
Getting started with QuillBot is simple: just download the app from the App Store and create an account. You can paste or type text into the editor or use our AI keyboard to paraphrase, fix grammar, and translate. Save documents locally and pick up where you left off anytime.
Key Features:
AI Paraphraser
Rewrite text to improve clarity, tone, and flow using 2 free paraphrase modes, or unlock 8 Premium modes to further customize how you paraphrase content.… View full description on the official store →
How it works:
Getting started with QuillBot is simple: just download the app from the App Store and create an account. You can paste or type text into the editor or use our AI keyboard to paraphrase, fix grammar, and translate. Save documents locally and pick up where you left off anytime.
Key Features:
AI Paraphraser
Rewrite text to improve clarity, tone, and flow using 2 free paraphrase modes, or unlock 8 Premium modes to further customize how you paraphrase content.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 224 MB🔞 4+📱 iOS 16.0+🔖 v2.5.0🔄 updated 0d ago🌐 EN📂 Productivity💰 Free
📅
What Worked™ · Development Pipeline
10 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-05
⭐
Rating ↑ 2.80 → 4.70 (improved 1.90★)
2026-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↓ 4.00 → 2.75 (dropped 1.25★)
2026-03
⭐
Rating ↑ 2.74 → 4.00 (improved 1.26★)
2026-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
2025-05
📈
Crossed 50 ratings — social-proof flywheel kicking in
2024-04
📈
Crossed 10 ratings — social-proof flywheel kicking in
2023-12
⭐
Rating ↓ 2.50 → 2.00 (dropped 0.50★)
2023-11
⭐
Rating ↑ 1.00 → 2.50 (improved 1.50★)
2023-11
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 218 reviews across 9 markets● 53% positive · ● 18% neutral · ● 29% negative · Rating drift: -2.08★ (declining — recent 50: 2.62★ vs lifetime: 4.7★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇮🇳 IN
+0.54
🇨🇦 CA
+0.34
🇦🇺 AU
+0.25
🇺🇸 US
+0.13
🇩🇪 DE
+0.12
🇯🇵 JP
+0.09
🇫🇷 FR
+0.05
🇧🇷 BR
+0.01
🇬🇧 GB
-0.07
Top praise themes
excellent ×12 work ×9 english ×8 helps ×8 grammar ×8 helpful ×8 help ×7 one ×7
Top complaint themes
waste money ×9 customer service ×7 give money ×4 doesn work ×4 please fix ×4 customer support ×4 full access ×4 pas français ×4
Risk signals
Refund mentions: 4.1% Subscription complaints: 7% Bug mentions: 5% Fraud / scam mentions: 2.3%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.68831★ | 308 | 4.68831★ this version |
| 🇧🇷 BR | 4.41378★ | 58 | 4.41378★ this version |
| 🇨🇦 CA | 4.71619★ | 525 | 4.71619★ this version |
| 🇩🇪 DE | 4.22807★ | 57 | 4.22807★ this version |
| 🇫🇷 FR | 4.21154★ | 52 | 4.21154★ this version |
| 🇬🇧 GB | 4.74382★ | 1,132 | 4.74382★ this version |
| 🇮🇳 IN | 4.71017★ | 1,387 | 4.71017★ this version |
| 🇯🇵 JP | 4.31372★ | 51 | 4.31372★ this version |
| 🇺🇸 US | 4.69606★ | 2,688 | 4.69606★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for QuillBot: AI Writing, Keyboard: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Similar apps in Productivity
About this analysis
Why medium confidence: 2,630 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does QuillBot make per month?▴
Based on our ML-calibrated revenue forecast, QuillBot earns approximately $618/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
What apps are like QuillBot?▴
Browse the full Productivity category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
Who makes QuillBot?▴
QuillBot is published by QuillBot, a Learneo Inc. business on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is QuillBot's BU Score?▴
QuillBot has a BU Score of 64/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.