Notes Writer vs Write in Chaos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Notes Writer
This app is a comprehensive note-taking and PDF editing solution for mobile devices. It allows users to write, format, and organize notes, annotate PDFs, fill forms, and scan documents. The app offers advanced editing tools, powerful search, and seamless sharing and export options.
- Write and format notes
- Annotate PDFs and fill forms
- Organize with unlimited notebooks
- Powerful full-text search
- Document scanning
- Sync with cloud services
- Export to multiple formats
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Notes Writer brings handwriting, PDF annotation, rich text, Math Notebooks, voice recordings and AI writing tools into one workspace for iPad and iPhone. Capture a lecture, mark up a paper, plan a project or turn a rough draft into something ready to share. WRITE AND MAKE IT YOURS Create beautifully formatted notes with headings, lists, colors and highlights. Work with Word documents, RTF, Markdown and plain text. Open documents in tabs and move between your ideas and reference material without losing your place. WRITE ON PDFs WITH APPLE PENCIL Take handwritten notes, sketch in the margins and highlight what matters. Choose from pens, pencils, markers, fountain pens and watercolor tools. Use the eraser, lasso and ruler to refine your work. Add text, shapes, images, signatures and audio to PDF notes. Fill forms, organize pages and keep your reading and annotations together. Measure distances and areas on scaled drawings, and apply text redactions in supported PDFs. GIVE YOUR WRITING AN AI ASSIST Rewrite a passage, simplify difficult language, fix spelling and grammar, or adjust the tone. Summarize, translate and explore ideas with AI tools and chat. Keep control of what goes into your notes and documents. CAPTURE VOICE, FIND THE WORDS Record lectures, meetings and ideas while they are fresh. Play recordings back at your pace and generate transcripts to revisit the details. Add recordings to your PDF notes and whiteboards for more context. THINK BEYOND THE PAGE Build visual whiteboards with notes, images and recordings. Capture quick thoughts on sticky notes. Structure ideas in Outline Notes with nested branches, rich text and images. Collapse sections, rearrange your thinking, and import or export outlines in OPML format. WORK THROUGH THE NUMBERS Combine explanations and calculations in Math Notebooks. Explore formulas with the built-in calculation tools and run Python cells when you need more. Create charts, write LaTeX documents and preview the finished PDF alongside your source. ORGANIZE YOUR STUDY AND RESEARCH Bring your notes, readings and research together in Study Projects. Organize subjects, lectures and sources in the Binder, plan ideas on the Corkboard and keep reference material beside your notes. Study Projects give everything a place as your understanding grows. TAKE BIG WRITING PROJECTS FURTHER Organize writing projects into sections in the Binder, plan with a Corkboard and review your writing as a manuscript. Keep research beside your draft, save snapshots and compile your work into a finished document or ebook. ORGANIZE, SCAN AND SHARE Keep notes and documents in folders with recognizable covers. Scan paper documents, import files and find what you need with search. Export supported documents to formats including PDF, DOCX, RTF, HTML and EPUB. Use the Files app and supported cloud locations to bring your work with you. LOOK AFTER YOUR WORK Autosave, document recovery and automatic backups help protect your progress. Use app and folder passcodes for an extra layer of privacy. Continue opening your existing Notes Writer PDF notes and outlines as you move to the new workspace. From your first handwritten idea to your final document, make room for the way you think. Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Write in Chaos
Quickly capture and organize your thoughts with a simple note-taking app. Easily search, sort, and filter your entries by date, time, or keywords to find what you need, when you need it.
- Quick note capture
- Searchable notes
- Sort by date and time
- Filter by note length
- Keyword search
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Sick of scrambling to scribble something down in your notes app, only to be unable to find said scribble when you need it days, weeks or months down the line? Samesies. That’s why KFX Tech has developed Write Chaos, a sleak, simple to use app which allows you to quickly find specific notes based on when you wrote them and which words you used. Whether it's a genius business idea or a wild dream you need to remember, jot it down in seconds and let Write Chaos worry about keeping your notes organised. Write Chaos allows you to sort & filter your text by the date, time and length of the note, as well as the giving you the ability to search through all of your notes for specific phrases. This means you can easily find that half asleep screenplay idea you had and the killer app idea you wrote down that will probably end up netting you about $5 in revenue... d'oh! Anyway... as someone who loves to make too many notes I often finding myself searching back through weeks, months and years worth of notes to find the idea or important piece of information I'm thinking of. This app lets you add notes quickly and chaotically, safe in the knowledge that you can search, sort and filter at any later date when you need it. I basically made this app for myself, but hopefully it's of use to you too! Download for free today and never lose a note again. Credits: Phone Icon made by Freepik from www.flaticon.com Plane Icon made by Freepik from www.flaticon.com
Screenshots
Verdict
The clearest difference is review sentiment: Write in Chaos at 100% against Notes Writer's 45%. Write in Chaos also leads on iOS requirement (15.0 vs 26.0). Notes Writer's advantage is update cadence (every 4 days vs monthly). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Notes Writer sells 8 in-app purchases, starting at $1.99 per 7 days and Write in Chaos sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Notes Writer ships an update every 4 days, Write in Chaos monthly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Notes Writer | Write in Chaos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (7.3K ratings) — better | — |
| Positive reviews | 45.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7.3K — better | — |
| Update frequency | Every 4 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 659 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Kairoos Solutions SL | KFX Tech LTD |
Customer experience
Notes Writer
Write in Chaos
Bugs and requests
Notes Writer
Reported bugs
4 issues- Notes randomly disappearing or getting corrupted
- Inability to recover deleted documents
- Unexpected behavior when adding/deleting pages
- Syncing issues and broken links between documents
Requested features
4 requests- Add more brushes and pen customization options
- Improve the clipping/selection tool
- Implement OCR and handwriting search
- Provide a Mac version
Write in Chaos
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Notes Writer
- Weekly$1.997 Days
- Notes Writer Unlock All and AI3 Days trial$3.991 Month
- Notes Writer Unlock All and AI3 Days trial$14.991 Year
- Full Version Unlock Pro$3.99
- Full Version Unlock Pro$4.99
- Full Version Unlock Pro2 variants$5.99
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- Full Version Unlock Pro$6.99
- Lifetime Pro Full Unlock$14.99
Write in Chaos
- Unlimited Notes$3.99









