Private on-device AI & PDFs
Your documents. Your phone. Your AI. Now with a cleaner chat, follow-up suggestions, and fully offline answers — nothing leaves your device.
Sigmy is a fully on-device AI assistant. The language model, document search, and every piece of private text stay on your iPhone. No cloud. No account. No tracking. No training on your data. Ever.
WHY SIGMY IS DIFFERENT
• Runs a Google Gemma model locally on your device — no API keys, no subscriptions to external AI services, no network round-trips that can leak your content.
• Works offline, on a plane, in a tunnel, or in a sensitive workplace where cloud AI is banned.
• Your documents, chats, and questions never leave your iPhone. We cannot read them and neither can anyone else.
WHAT YOU CAN DO
• Ask questions about your PDFs, Word docs, text files, Markdown, and scanned images — every answer cites a tappable source passage.
• Import documents by tapping +, scanning with the camera, capturing text from photos, pasting images, or sharing from any other app.
• Compare two or more documents side-by-side — "what's different between these contracts?", "which proposal has better terms?".
• Extract events from any document straight to your Calendar with a single tap — meeting dates, deadlines, travel itineraries.
• Hands-free mode: have Sigmy read answers aloud in your choice of voice — fully on-device, with music/podcasts ducking politely while it speaks.
• Dictate questions by voice and export chats as PDF, Markdown, plain text, RTF, or email.
• Full-text search across every document you've imported, with semantic ranking that actually understands what you meant.
• Quick-prompt templates for executive summaries, action items, study outlines, and timelines.
PRIVACY BY DESIGN
• Optional Face ID / Touch ID unlock for the whole app.
• Optional AES-GCM encryption of the document index at rest, sealed whenever you background the app.
• Privacy manifest declares every iOS API we touch and why.
• PII detection warns you before indexing credit card numbers or other sensitive identifiers.
FREE TRIAL — 7 DAYS OF EVERYTHING
Every new install gets a 7-day free trial with full Pro features: unlimited documents, extended memory window, and all advanced tools. No credit card required. If the trial isn't right for you, just don't subscribe — the app still works for basic answers.
SIGMY PRO
After the trial, Sigmy Pro unlocks:
• Unlimited document imports and queries
• Up to 8K token memory window for very long files
• Priority processing and the largest extract windows
• All future Pro features at no extra cost
THREE WAYS TO SUBSCRIBE
• Pro Monthly — $5.99 / month after a 7-day free trial
• Pro Yearly — $39.99 / year after a 14-day free trial (saves ~50% vs monthly)
• Lifetime Pro — one-time $79.99, permanent access forever, no renewals
SUPPORTED DOCUMENT TYPES
PDF, Word (.docx), plain text (.txt), Markdown (.md), Rich Text (.rtf), HTML, CSV, and images containing text (via on-device OCR).
DEVICE REQUIREMENTS
iPhone with 6 GB RAM or more (iPhone 15 / iPhone 16 family and later work well). The on-device model is ~3.4 GB; you download it once over Wi-Fi on first launch.
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SUBSCRIPTION TERMS
Sigmy Pro is an auto-renewable subscription.
• Pro Monthly: $5.99 per month after a 7-day free trial.
• Pro Yearly: $39.99 per year after a 14-day free trial.
• Lifetime Pro: one-time $79.99 non-renewing purchase.
Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription by going to your Apple Account settings after purchase. No cancellation of the current subscription is allowed during an active subscription period.
Privacy Policy: https://www.sigmygroup.com/privacy
Terms of Use: https://www.sigmygroup.com/terms
Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.