Knowledge Twin

Knowledge Twin Knowledge Twin is your personal working memory for projects, contacts, decisions and knowledge. Every entry has a source, a review date and links, so you can see which knowledge is backed up, current and still usable. Search, linking and hints are computed entirely on your device – no language model, no server. HIGHLIGHTS • Full-text search with BM25 ranking, synonyms per workspace, prefix and typo-tolerant matching, plus queries such as "phrase", -term, type:, tag: and status: • Knowledge entries (note, fact, how-to, meeting, idea, lesson learned, reference) with confidence level and review cycle – outdated knowledge becomes visible • Projects with goal, status workflow, health score 0–100 with reasons, progress and a suggested next step • Decisions with options, pros and cons, rationale, evidence strength from sources, two-person approval for high-impact calls and a review date • Sources with reliability and review status; evidence as photo, document or note with SHA-256 checksum, encrypted with AES-256-GCM • 15 rule-based hints, e.g. review due, duplicate, open contradiction, retracted source still in use or decision without evidence – each rule shows its reason • Link graph with neighborhood and path between two items, [[references]] right in the text • Extractive project summary built from original sentences with their source • Tasks with checklist, blocked reason, escalation and local reminders; contacts with areas of expertise and follow-up date • Project report as PDF or JSON, lists as CSV with field selection, name masking and a manifest with SHA-256 per file ALSO INCLUDED Up to 5 workspaces, roles (owner, manager, contributor, reader) with PIN on a shared device, activity log as a SHA-256 hash chain with verification, encrypted full backup, project packages with one-time code and conflict resolution, templates, tags, trash, 7 languages, light and dark theme, iPhone and iPad. PRIVACY Your data stays on your device: no account, no tracking, no ads. The only network connection is to the store for the subscription. SUBSCRIPTION Free: 1 active project plus sample data. The monthly “Knowledge Twin Pro” subscription unlocks unlimited active projects. Reading, searching, exporting, backing up and deleting your data always remain available. The subscription renews automatically each month unless cancelled at least 24 hours before the end of the current period; cancel anytime in Google Play under Subscriptions. Privacy Policy: https://tonke.de/data-protection-en.html