Kakidoc vs Spark Memo
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Kakidoc
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You think things through with AI. The thinking never becomes a document. KakiDoc is built to close that gap. A GOOD CONVERSATION, AND NOTHING TO SHOW FOR IT You talked it through. It got clearer. But the conversation only scrolls away โ hard to read back, harder to hand to anyone. Copy it out, redo the headings, reorder the parts... and that is usually where it stops. WHEN IT'S READY, ONE BUTTON A new document opens as a chat-only screen. Throw in whatever you have, bullet fragments are fine. The AI fills the gaps with suggestions, and asks with options when it needs a decision. When the shape is right, press Turn into a document. You get a few ways it could be structured. Swipe through them and read exactly what each one would write. Pick one, press Create the document, and that is the moment it is created. AN AI THAT DOESN'T WRITE UNTIL YOU SAY SO If the list looks wrong, go back and keep talking. Nothing is written behind your back. Thinking and drafting are separate here, so you never get a finished piece handed to you while you are still working out what you mean. THEN REVISE, ONE SENTENCE AT A TIME Once the document exists, tap the sentence or block you want to change and ask: "shorten this", "make it more formal". Undo is one tap, and around 100 versions of history are kept. A PREVIEW WORTH READING Tables, code blocks, Mermaid diagrams, maths, callouts, images and video are all rendered as you write. WHAT YOU WRITE STAYS YOURS Nothing is locked inside a chat. Documents are stored in your own iCloud (CloudKit). The developer cannot access them. The format is plain Markdown, so other apps can open it. Export to Markdown, HTML, PDF or PNG, or send everything including images as a transfer pack (.mdpack). PRICING Creating, editing, previewing, iCloud sync and export are free, with no sign-in. AI features (chat, AI editing, web research) need an Apple Account sign-in and come with a free allowance to try. That allowance is one-time and does not reset monthly. A subscription is required to keep using AI. REQUIREMENTS iPhone and iPad. All AI processing runs in the cloud (Google Gemini). Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kakidoc.com/privacy
Spark Memo
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Spark Memo is for the thought you will lose if you stop to file it. NO TITLES, NO FOLDERS, NOTHING TO ORGANIZE Open the app and the cursor is already waiting. Type, save, done. There is nothing to name, nothing to sort into, and nothing to tidy up later. YOU KNOW IT SAVED BECAUSE IT EXPLODES Every save detonates on screen. It is deliberately, uselessly spectacular, and it means you never have to check whether the note actually went in. FIND IT AGAIN LATER Search digs through everything you have written. That is the whole filing system, and it is enough. Free, no ads, no in-app purchases, no account required. Your notes stay on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Spark Memo at none against Kakidoc's 1. Kakidoc's advantage is update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement 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. Kakidoc sells 1 in-app purchase, starting at $5.99 per month. Spark Memo asks for nothing beyond the download.
Kakidoc ships an update fortnightly, Spark Memo every 3 months. Both last shipped on October 31, 2026.
| Parameter | Kakidoc | Spark Memo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly โ better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 18.0 |
| Further details โ not scored | ||
| Size | 52 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Daisuke Kijihana | YOSHIKI ASAMI |
In-app purchases
Kakidoc
- AI Plan(Monthly)$5.991 Month
Spark Memo
No in-app purchases









