QuillBot: AI Writing, Keyboard
74
Quality Score
Strong
QuillBot: AI Writing, Keyboard
by QuillBot, a Learneo Inc. business
Medium confidence
✍️ Bumetric analysis
“
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 mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 74: Strong (healthy traction). For a Productivity app, that means healthy traction. 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
59 snapshots on record
Rating
4.7
Reviews
2,630 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
59
since Nov 2023
ONE-TIME · BUILD
💰 Estimated build cost
$115K
↳ What it cost to build · not monthly revenue
Likely range $85K – $155K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~1.9y at current MRR
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 (192 MB) | +$40K |
| ⚙ Productivity complexity ×1.10 | +$9K |
| ⚙ 2.9y maintenance × ~1-person team | +$17K |
Total estimate
$115K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$100K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $150K · 21× MRR multiple
💸
~0.9× 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 |
| 📅 2.9y proven track record | +15% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Productivity category multiple | +8% |
Final multiple
21× MRR
👥 Estimated audience size
165K
Lifetime downloads (US-equivalent)
Monthly active
46K
Daily active
20K
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 |
| 📅 2.9y of rating accumulation | -15% |
| 🔁 Productivity D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
44% sticky
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
Medium confidence · 60%
Also possible
React Native
Flutter
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 📦 App bundle size | 192 MB |
| 🏷 Category context | Productivity |
| 📦 Mid-large iOS bundle | → Likely native SwiftUI (post-2020 era) |
💀 Maintenance status
Active
5%
Last shipped 2026-09-17 · 8 days ago
0 · Active
50 · At risk
100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅 8 days since last update | Active development |
Verdict
Active
🔬
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 · 33/100MID TIERFREE (NO MONETIZATION)no growth momentumRevenue Strength
3.7
Product Quality
7.0
Market Position
2.0
Growth Velocity
5.0
Defensibility
2.7
Operational Safety
0.0
Founder Strength
5.5
Monetization Maturity
0.5
- 💰 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: dev shipping weekly.
- ⚠️ Risk: High — 4.2% 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. Portfolio play ($28K/mo combined) commands premium. 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 12 of 12 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| premiumREVIEW | +$2,200 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| securityREVIEW | +$1,800 | |
| multilingualREVIEW | +$1,700 | |
| 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 · v2.18.0
Create with AI Is Back!
Create with AI is back on the Quillbot iOS Keyboard—helping you go from idea to ready-to-use text without leaving the app you're in.
Turn your ideas into text in seconds
Create messages, emails, and more with AI… Full release notes →
Create with AI is back on the Quillbot iOS Keyboard—helping you go from idea to ready-to-use text without leaving the app you're in.
Turn your ideas into text in seconds
Create messages, emails, and more with AI… Full release notes →
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
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $5.0K/mo
- Top-grossing rank
- 🇨🇦#75 /100 🇮🇳#81 /100
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
📈Ratings growth2,994 ratings+149600% lifetimeShow 3-year history estimate ▾
Tracked (59 weeks) Pre-tracking estimate (0 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Top Countries — Grossing Rank2 countries
🇨🇦CA#75 /100
🇮🇳IN#81 /100
📊Category Rank Trajectory#75 now · best #75 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀Update Frequency · Releases per Quarter5 releases tracked
🚀Version Release Timeline5 releases tracked
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 →💾 192 MB🔞 4+📱 iOS 16.0+🔖 v2.18.0🔄 updated 1w ago🌐 EN📂 Productivity💰 Paid🚀 Launched 2023 (2y old)
📅
What Worked™ · Development Pipeline
19 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 →
2026-09
🔧
Shipped update — v2.15.0 → v2.18.0
→ 30 days after: reviews +93 medium · co-occurring
2026-08
🔧
Shipped update — v2.13.0 → v2.15.0
→ 30 days after: reviews +172 high confidence
2026-07
🔧
Shipped update — v2.8.0 → v2.13.0
→ 30 days after: revenue +$29.0K/mo · reviews +192 medium · co-occurring
2026-06
🔧
Shipped update — v2.5.0 → v2.8.0
→ 30 days after: revenue +$29.0K/mo · reviews +192 high confidence
2026-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +79 high confidence
2026-05
⭐
Rating ↑ 2.80 → 4.70 (improved 1.90★)
→ 30 days after: reviews +79 high confidence
2026-03
⭐
Rating ↓ 4.00 → 2.75 (dropped 1.25★)
→ 30 days after: reviews +5 medium · co-occurring
2026-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +5 medium · co-occurring
2026-03
⭐
Rating ↑ 2.74 → 4.00 (improved 1.26★)
→ 30 days after: reviews +5 medium · co-occurring
2025-05
📈
Crossed 50 ratings — social-proof flywheel kicking in
2025-05
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: rating −0.08★ · reviews +5 high confidence
2024-04
⭐
Rating ↑ 1.71 → 2.27 (improved 0.56★)
→ 30 days after: rating −0.06★ medium · co-occurring
2024-04
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating −0.06★ medium · co-occurring
2024-04
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +0.50★ · reviews +7 low · multiple changes
2023-12
⭐
Rating ↓ 2.50 → 1.75 (dropped 0.75★)
→ 30 days after: rating +0.08★ high confidence
2023-12
⭐
Rating ↓ 2.50 → 2.00 (dropped 0.50★)
→ 30 days after: rating −0.75★ high confidence
2023-11
🚀
First tracked snapshot — initial data captured
→ 30 days after: rating −0.75★ medium · co-occurring
2023-11
⭐
Rating ↑ 1.00 → 2.50 (improved 1.50★)
→ 30 days after: rating −0.75★ medium · co-occurring
2023-11
🚀
First tracked snapshot — initial data captured
→ 30 days after: rating −0.75★ medium · co-occurring
🗣
Voice of Customer
Based on 236 reviews across 9 markets● 52% positive · ● 20% neutral · ● 29% negative · Rating drift: -1.92★ (declining — recent 50: 2.78★ 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
+0.53
🇨🇦 CA
+0.32
🇦🇺 AU
+0.25
🇺🇸 US
+0.11
🇯🇵 JP
+0.09
🇫🇷 FR
+0.05
🇩🇪 DE
+0.04
🇧🇷 BR
+0.01
🇬🇧 GB
-0.07
Top praise themes
excellent ×13 work ×9 one ×9 english ×8 helps ×8 grammar ×8 helpful ×8 help ×7
Top complaint themes
waste money ×9 customer service ×7 doesn work ×5 give money ×4 please fix ×4 customer support ×4 full access ×4 pas français ×4
Risk signals
Refund mentions: 4.2% Subscription complaints: 7% Bug mentions: 4% Fraud / scam mentions: 2.1%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.69313★ | 3,011 | 4.69313★ this version |
| 🇬🇧 GB | 4.74268★ | 1,232 | 4.74268★ this version |
| 🇩🇪 DE | 4.17391★ | 69 | 4.17391★ this version |
| 🇫🇷 FR | 4.31148★ | 61 | 4.31148★ this version |
| 🇯🇵 JP | 4.34544★ | 55 | 4.34544★ this version |
| 🇨🇦 CA | 4.70693★ | 563 | 4.70693★ this version |
| 🇦🇺 AU | 4.69207★ | 328 | 4.69207★ this version |
| 🇧🇷 BR | 4.44118★ | 68 | 4.44118★ this version |
| 🇮🇳 IN | 4.70946★ | 1,480 | 4.70946★ this version |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 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.
About this analysis
Why medium confidence: 2,630 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 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 $5.0K/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.
Is QuillBot profitable?▴
With estimated build cost $115K and monthly revenue $5.0K, QuillBot looks break-even-grade — payback period sits around 1.9 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does QuillBot have?▴
Estimated audience: ~165K lifetime downloads, ~46K monthly active users, and ~20K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
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.
What is QuillBot built with?▴
Our heuristic places QuillBot on the Native iOS (SwiftUI) stack (Medium confidence, 60%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is QuillBot still actively maintained?▴
Maintenance status: Active (5% abandonment risk). Last shipped version was 8 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would QuillBot sell for?▴
Estimated acquisition value: $100K (marketplace range $75K – $150K). Calculated as 21× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was QuillBot last updated?▴
QuillBot last shipped a new version on 2026-09-17 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
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 74/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.