Mindrafts vs Sealed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mindrafts
This privacy-focused note-taking app offers an on-device AI assistant for offline writing improvements, summarization, and analysis. It features a rich editor supporting Rich Text and Markdown, with robust organization and export options.
- On-device AI assistant (MindChat)
- Offline AI processing
- Rich Text and Markdown editor
- Note organization (notebooks, tags)
- Import/Export (Markdown, HTML, ZIP)
- Privacy-focused, no tracking
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Mindrafts is a flexible, and privacy-focused note-taking app built with a true local-first design. The app includes an on-device AI (LLM) that runs entirely offline. All data and AI processing stay on your device, with no uploads, no accounts, no syncing, and no tracking. The local AI assistant, MindChat, works without an internet connection. It can improve writing clarity, correct grammar, expand or shorten paragraphs, summarize documents, extract key points, and analyze the content of selected notes. You can get fast, reliable AI assistance anytime, even in airplane mode or with no signal. Mindrafts provides a powerful editor that supports both Rich Text and Markdown. You can create headings, lists, to-dos, code blocks, quotes, formulas, images, and more, making it easy to capture ideas, tasks, writing, and study notes. Notes can be organized using notebooks and tags. You can search titles and content, pin important notes, sort your notes. The mobile experience is designed to be simple and intuitive. Swipe right to open the sidebar, long-press a note for quick actions, and tap the title to add icons or tags. Mindrafts supports importing Markdown, HTML, and ZIP files, and exporting to Markdown, HTML, and TXT. You can also export all notes at once as a ZIP file for backup or migration. If you encounter issues or have suggestions, feel free to email us at mindrafts.ai@gmail.com . Your feedback helps us continue improving the experience.
Sealed
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You think you know what will happen. Sealed makes you find out. Write a prediction, say how sure you are, and pick the date you will know. It seals. Until that date nobody can read it back — not even you. All you see is the label you gave it and a countdown. When the day comes, the seal breaks and you meet your own words: what you said, why you thought it, and how confident you were. Then you mark yourself right or wrong. That is where the interesting part starts. Sealed keeps the one number almost nobody keeps about themselves — how often the things you were 80% sure about actually happened. Say 80% and be right half the time and it will tell you so, level by level, and in plain words: "You say 83% on average and you are right 67% of the time. You run 16 points overconfident." Nothing leaves the phone. There is no account to make, no server holding your predictions, and nothing to subscribe to. It works on a plane. • Seal a prediction until a date you choose — minutes away or ten years away • Six confidence levels, each explained in odds you can feel • A vault of what is sealed, what is ready to open, and what you have judged • Your calibration, level by level, with a chart and a plain-English verdict • Reminders when something is ready to open, naming only the label • Export what you have opened as Markdown; sealed predictions are never in it • Sixteen example predictions to load, so the numbers mean something on day one • Works entirely offline. No account, no analytics, no subscription.
Screenshots
Verdict
The clearest difference is in-app purchases: Sealed at none against Mindrafts's 2. Mindrafts's advantage is iOS requirement (16.6 vs 26.0). On price, ads and device support 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. Mindrafts sells 2 in-app purchases, starting at $0.99 per month. Sealed asks for nothing beyond the download.
| Parameter | Mindrafts | Sealed |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 512 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Shan Chengliang | Jarle Hansen |
In-app purchases
Mindrafts
- Mindrafts Pro - Monthly7 Days trial$0.991 Month
- Mindrafts Pro - Annual7 Days trial$49.991 Year
Sealed
No in-app purchases









