Plane Notes vs PaperBrain AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Plane Notes
An intuitive notebook app featuring an infinite canvas for note-taking and idea organization. It allows for seamless creation and management of notes without page limitations.
- Infinite canvas
- Intuitive interface
- Note organization
- Idea management
- Seamless note creation
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This is an intuitive infinite canvas notebook app.
PaperBrain AI
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PaperBrain AI is the personal AI assistant that actually remembers you. Most AI apps start fresh every conversation. PaperBrain builds a memory of who you are, what you care about, and how you think. Then uses it to give you smarter, more personal responses every time you open the app. Record your meetings. Keep what matters. Start a recording, go run your meeting, and come back to a full transcript with a summary, key points, and speaker labels. Audio stays on your account. Replay any moment, word for word. Voice notes that go somewhere. Capture an idea the moment you have it. PaperBrain transcribes your voice, summarizes it, and stores it in memory, so you can ask about it later without digging through files. Your library, read aloud. Access over 70,000 free books from Project Gutenberg, read in a natural AI voice. Turn a commute into a chapter. Your data is yours. Your memories, recordings, and notes belong to you, not us. We store them securely and never train on your data. Terms of Use: https://paperbrainai.com/terms
Screenshots
Verdict
The clearest difference is ads: PaperBrain AI at none against Plane Notes's shown. Plane Notes's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement 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. Plane Notes sells 1 one-off in-app purchase and PaperBrain AI sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
Plane Notes ships an update every 2 days, PaperBrain AI every 2 weeks. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.
| Parameter | Plane Notes | PaperBrain AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (93 ratings) — better | — |
| Positive reviews | 43.5% of reviews | — |
| Number of ratings | 93 — better | — |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 8 MB | 27 MB |
| Age rating | 4+ | 17+ |
| Developer | Jumpei Adachi | Bowen Craft |
In-app purchases
Plane Notes
- Paid Version$5.99
PaperBrain AI
- PaperBrain Standard Monthly$7.991 Month
- PaperBrain Pro Monthly$9.991 Month
- PaperBrain Max Monthly$19.991 Month
