Pearstudio vs Kioku
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Pearstudio
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DOCUMENTS AND PROMPTS - Import a document and takes out the names and dates when needed. - Combine it with a prompt and preview the result. - Check the estimated token count. - Bring documents in from this device or another one on your network. PROMPT MANAGEMENT - Save your prompts, then tag and search them. - Give a prompt fill-in fields, and sentences you can switch on or off. - Answer them when you use it. The saved prompt stays as written. - Refine the wording with Apple Intelligence. - Insert a saved prompt into another app with the Pearstudio keyboard. Prompt refinement is available where Apple Intelligence is enabled. PDF TOOLS Merge PDFs or compress them. OFFLINE Documents, prompts, and PDFs are handled on your device. ICLOUD SYNC Sessions and prompts stay in sync over iCloud. Access them on Mac, iPhone, and iPad.
Kioku
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Kioku is a personal knowledge library for Mac. Save articles, PDFs, websites, and your own Markdown notes into organized vaults you can read, search, annotate, and keep with you offline. Use Kioku to turn scattered research into a calm, durable library. Paste a URL to archive a single page, save a PDF from your Mac, or crawl more of a site when you want a deeper reference vault. Kioku stores your content as Markdown with downloaded assets, so your library stays portable and readable outside the app. Write your own notes with a focused Markdown editor, add images, create internal links, and keep authored notes separate from saved web pages. While reading, select passages to save excerpts and notes so important ideas do not disappear after the first pass. Kioku also includes optional local AI features for summaries, retrieval, chat, and study cards. Supported models run on your Mac, keeping those experiences local to your device. Features: Save articles, PDFs, pages, and websites into Markdown vaults Read saved content offline in a native Mac interface Write and edit Markdown notes Organize saved pages into vaults Search your library Annotate passages and save excerpts Generate summaries with optional on-device AI Create study cards from saved pages and notes Store content in a local or iCloud Drive-backed folder Keep your library portable with Markdown files and assets Kioku is for readers, researchers, students, builders, and anyone who wants a quieter place to collect what matters.
Screenshots
Verdict
The clearest difference is update cadence: Kioku at every 2 days against Pearstudio's every 2 weeks. Pearstudio's advantage is device support (3 vs 1) and iOS requirement (17.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Pearstudio ships an update every 2 weeks, Kioku every 2 days. Both last shipped on October 31, 2026.
| Parameter | Pearstudio | Kioku |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac โ better | iPhone |
| Requires iOS | 17.6 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 5 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Braveyo LLC | Kai Kang |
In-app purchases
Pearstudio
No in-app purchases
Kioku
No in-app purchases









