Comparison

Teti vs Personal.AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Teti

This AI assistant offers private conversations that never train models or sell your data. It can answer questions, conduct deep research with sources, assist with writing, generate images and videos, and summarize documents. Enjoy hands-free interaction via voice and camera.

Highlights
  • Private AI conversations
  • Deep research with sources
  • AI writing assistance
  • Image and video generation
  • PDF summarization and quizzes
  • Voice and camera interaction
  • Temporary chats
Features
Read full description

Teti is the private AI assistant that works for you, not on you. Chat, write, research and create with powerful AI, knowing your conversations never train a model, never feed ads and are never sold. Ask anything. It stays private. WHY TETI IS DIFFERENT Most AI chat apps run on your data. Teti runs on subscriptions, so it has no reason to watch you. • Your chats never train AI models • No ads and no ad networks • No behavioral tracking or profiling • Your data is never sold • Your data stays in Europe • Delete your chats and account whenever you want ASK ANYTHING Clear answers to everyday questions, complex problems and demanding tasks. When it needs fresh information, Teti searches the web and shows its sources, so you can check every answer. DEEP RESEARCH IN MINUTES Give Teti a real question and let it dig. Deep research reads across many sources, compares them and brings back a structured answer with citations: hours of research, done in minutes. A WRITING ASSISTANT THAT SOUNDS LIKE YOU Emails, posts, reports, resumes, stories. Teti drafts, rewrites, shortens and polishes in your own tone, and translates with real context across 100+ languages. POINT YOUR CAMERA. ASK OUT LOUD. Talk to Teti with your voice, or show it what you see. Point your camera at a landmark, a plant, a menu or a label and just ask, hands-free. AI IMAGE GENERATOR AND PHOTO EDITOR Describe an image and Teti creates it. Upload a photo and edit it just by asking: a new background, a new style, a different light. AI VIDEO GENERATOR Turn a single sentence into a short video. Your prompts and results stay in your account, never in a public dataset. PDFS, FILES AND STUDY Drop in a PDF, a document or a screenshot. Teti summarizes it, pulls out the key points, reads charts and can turn any PDF into a quiz to help you study. TEMPORARY CHATS Need a conversation that leaves no trace? Start a temporary chat and nothing stays behind when you are done. SHARED PROJECTS, PRIVATE CHATS Plan a trip, a launch or a group project together. Share a project with others while your own chats stay private. MEMORY THAT STAYS YOURS Teti remembers what matters to you, so you don't have to repeat yourself. That memory lives in your account and is never used to train anything. WHAT YOU CAN DO WITH TETI • Chat about anything with a smart AI • Write and rewrite emails, posts and reports • Run deep research with sources you can verify • Summarize PDFs and turn them into quizzes • Generate images and edit photos with words • Create short AI videos from a sentence • Talk to AI with your voice and your camera • Translate across 100+ languages • Plan projects together with others PRIVACY ISN'T A FEATURE. IT'S THE FOUNDATION. We are funded by subscriptions, not by harvesting data. That is not a marketing line, it is our business model: we don't need your conversations to grow. If you pay for an AI assistant, you shouldn't also be the product. START FREE Chat with Teti, your private AI assistant, for free. Optional plans unlock more advanced features, and privacy is the same on every plan. There is no "premium privacy". Teti. Think freely.

About

Personal.AI

An on-device AI assistant that processes information locally for enhanced privacy and structured understanding. It offers web search, local document querying, and agent mode for complex reasoning, all without sending data to external servers.

Highlights
  • On-device AI processing
  • Web search integration
  • Local RAG for document querying
  • Agent mode for multi-step reasoning
  • Offline AI experience
  • Support for quantized models
Features
Read full description

Personal.AI is an on-device AI assistant designed for reading and exploring AI-generated knowledge in a clear, structured, and private way. • All AI runs directly on your device • Interact with powerful models without sending data to external servers • Designed for privacy, readability, and simplicity • Structured answers that make complex topics easy to understand Key Features • On-Device AI Processing All AI runs locally. Your prompts and responses stay private. • Web Search Get real-time answers from the web, even for complex questions. • Local RAG Ask questions using your documents and saved content. • Agent Mode Get smarter answers with multi-step reasoning. • Support for Quantized Models Supports GGUF models for efficient on-device performance. • Offline AI Experience Works fully offline once a model is downloaded. • Model Switching Choose smaller models for speed or larger models for deeper answers. • Structured Reading Interface Clean, layered responses designed for easy reading. • Privacy-First Design No tracking. No data collection. Your data stays with you. Privacy • AI processing happens entirely on your device • No personal data is collected • No data is sent to external servers • No analytics or tracking Our Goal • A non-profit project focused on on-device AI • Built for privacy, readability, and user-first design

Screenshots

Teti4 screens
Personal.AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Personal.AI at none against Teti's 1. Personal.AI also leads on rating (5.0 vs 4.8). Teti's advantage is iOS requirement (15.1 vs 17.0). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Teti sells 1 in-app purchase, starting at $11.99 per month. Personal.AI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Personal.AI holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 3 respectively.

UpkeepUpdate frequency

Teti ships an update every 10 days, Personal.AI weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 5 level
Teti versus Personal.AI: the parameters behind the verdict, then further details
ParameterTetiPersonal.AI
PriceFreeFree
Rating4.8 (6 ratings)5.0 (3 ratings) — better
Number of ratings6 — better3
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size72 MB15 MB
Age rating17+4+
DeveloperTetiAI LLCJagadeesh Raghu

Customer experience

Teti

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Personal.AI

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Teti

Subscriptions1
  • Teti Pro$11.991 Month
None

Personal.AI

No in-app purchases

Questions

Is Teti free?
Teti is free to download, with in-app purchases available.
Is Personal.AI free?
Personal.AI is free to download, with no in-app purchases.
Which has better reviews, Teti or Personal.AI?
Personal.AI is rated higher. Teti averages 4.8 out of 5 from 6 ratings, while Personal.AI averages 5.0 from 3 ratings.
Do Teti or Personal.AI have ads?
Neither Teti nor Personal.AI shows ads.
Which is updated more often, Teti or Personal.AI?
Teti ships an update every 10 days, and Personal.AI weekly. Most recently, Teti was updated on November 5, 2026 and Personal.AI on October 31, 2026.

Other comparisons