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72
BU Score
Strong

CollaNote: нотуй, пиши, малюй!

4.7 ✍️ Editor
✍️ BU Analytics Review

CollaNote: нотуй, пиши, малюй! is an iOS app from Zauberberg Lab Company Limited in the Productivity category, currently rated 4.7★ across 13,450 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 72Strong (healthy traction). For a Productivity app, that means healthy traction.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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💰 Forecast Revenue / mo

MODEL
Revenue 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 11 of 11 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (13,450 ratings)METRIC
+$5,500
Excellent rating (4.7★)METRIC
+$2,200
bugsREVIEW
−$1,800
5 starREVIEW
+$1,800
Multilingual (31 languages)METRIC
+$1,500
highly recommendREVIEW
+$1,400
slowREVIEW
−$1,200
support teamREVIEW
+$900
priceyREVIEW
−$800
Established app (5y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 220 MB🔞 4+📱 iOS 18.6+🔖 v4.1.1🔄 updated 5d ago🌐 AR, BN, CA, HR, CS +26📂 Productivity💰 Paid🚀 Launched 2021 (5y old)

📝 About this app

CollaNote: Powerful note-taking app packed with a wide range of tools.
Note-taking, PDF markup, digital planning, and flashcards - all in one place!

BUILT FOR APPLE PENCIL WITH AN ENHANCED WRITING EXPERIENCE:
- 25+ different pens and brushes to transform your notes into artwork.
- Handwriting stabilizer for beautiful, smooth writing.
- Enjoy a calming ASMR note-taking experience.
- Infinite Arc Menu available for both Apple Pencil Pro and Apple Pencil Gen 2.

IMPORT, MARK-UP, AND EXPORT PDF:
- Import and mark up PDFs, PPTs, DOCs, and Images effortlessly.
- In-built scanner to digitize your physical documents.
- Export notes to PDF and share with ease.

POWERFUL TOOLS:
- Translation tool to learn new languages, supporting over 90 languages.
- Create flashcards with audio and images, or use our extensive library.
- Beautiful Planners for tracking tasks, deadlines, and schedules.
- Record and sync audio directly within your notes.

UNLIMITED PAPERS AND NOTEBOOKS:
- Unlimited paper with versatile grids/lines and 150+ colorful templates.
- Keep all your notes organized and easily accessible from anywhere.
- Automatically back up to iCloud and sync across iOS devices.
- Smart Dark Mode for optimal visibility in any lighting.
- Password protection for ultimate note security.

AI POWERED:
- Built-in AI Calculator for complex calculations.
- AI drawing tools for perfect shapes.
- Get intelligent writing and note-taking assistance.
- Generate unique stickers with AI.

ENGAGING CREATIVE COMMUNITY:
- Join the Public Room to connect with creators worldwide.
- Real-time collaboration function (unlimited participants).

CollaNote's journey began with a student at Hamburg University, who now leads a dedicated team of individuals devoted to delivering the finest digital paper experience. We extend our heartfelt gratitude to our users for their unwavering support since the early days of CollaNote.

Download CollaNote now to discover even more surprises!

🆕 What's New · v4.1.1

- Improved Lasso Tool: The Lasso Tool now supports selectable content types: pen strokes, marker strokes, and boxes.
- Improved Translation Tool
+ Added 2 selection modes: rectangular selection and freehand selection.
+ Improved translation quality.
- Hover Support for Pen Tools: Added hover support for all pen tools.
- New Trash Bin UI: Redesigned the Trash Bin with a new interface.
- New Note History Feature: You can now manage the edit history of your notes and restore earlier versions.
- Bug Fixes and Performance Improvements

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
CollaNote: нотуй, пиши, малюй!
Developer
Zauberberg Lab Company Limited
Bundle ID
net.quochuywdm.collanote496
App Store URL
Open in App Store
Category
Productivity
Content rating
4+
Languages
AR, BN, CA, HR, CS, DA, NL, EN, FR, DE, EL, HE, HI, HU, ID, IT, JA, KO, MS, NB, PL, PT, RO, RU, ZH, ES, TH, ZH, TR, UK, VI

Company

Website
www.collanote.com
Tagline
Top Free Note-Taking App for Students
Description
Top Free Note-Taking App for Students Effortless digital notes, infinite creativity, one powerful app.
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
OG image

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$1.8K/mo
Top-grossing rank
Outside top 100 in US Productivity
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
facebook
Email
Not found
Phone
0981151707
Contact page
Not found
About page
Not found
📈Ratings growth13,450 ratings+122% lifetimeShow 3-year history estimate ▾May 2023Jan 2026May 2026
Tracked (42 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
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.

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