Comparison

Offline AI Lite vs Chatagi

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

Head to head
About

Offline AI Lite

Features
Read full description

Offline AI Lite is a private AI chat app designed for fast everyday help on your iPhone. After the local model is ready, prompts, answers, files, and chat history stay on-device so you can write, plan, summarize, brainstorm, and ask questions without a cloud AI relay. Why it is lightweight: - Smaller on-device model for lower storage needs - Fast everyday replies for writing, planning, and private notes - Offline-first chat after the model is ready - Local chat history stored on your iPhone - Simple controls for focused, balanced, or creative replies Offline AI Lite Pro unlocks more control for deeper private work: - Thinking Mode for more structured answers - Larger context for longer conversations - Reusable system prompt for personalized offline replies - Steady and Fast performance modes when available Offline AI Lite is built for people who want a practical private assistant that keeps their work local. Use it for drafting, task planning, study notes, technical questions, summaries, and private thinking sessions where your content should stay on your iPhone. Offline AI Lite Pro Weekly is an auto-renewable subscription. A 3-day free trial may be available once, then the subscription renews at $4.99 per week unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account at confirmation of purchase. You can manage or cancel your subscription in App Store account settings. Privacy Policy: https://fonovapplab.com/privacy Terms of Use: https://fonovapplab.com/terms

About

Chatagi

Features
Read full description

Own your thoughts. Own your AI. Chatagi is an on-device AI chat app designed for privacy, control, and local intelligence. Instead of sending every conversation to the cloud, Chatagi runs supported AI models directly on your device, giving you a more private space to think, write, explore ideas, and ask questions. Why Chatagi? Private by Design Chatagi is built around local AI. Your conversations stay on your device, and no account or login is required to start chatting. On-Device Intelligence Download a supported model, set it as your default, and chat directly from your device. After setup, Chatagi can run without relying on a constant internet connection. Fast Mode and Thinking Mode Use Fast Mode when you want quicker responses. Switch to Thinking Mode when you want the model to reason more deeply and show a more thoughtful response style. Choose Your Model Chatagi lets you choose the model size that fits your device: Nano: Optimized for efficiency and faster local use. Small: A balanced option for everyday private AI chat. Large: A more capable local model designed for higher-performance devices. A Note on Performance Local AI depends on your device’s hardware. Larger models may respond more slowly because they require more memory and processing power. If a model feels slow or the app becomes unresponsive, switch to a smaller model for a smoother experience. Your thoughts. Your device. Your AI. Note: AI responses are for informational purposes only and do not constitute professional, legal, medical, financial, or other expert advice.

Screenshots

Offline AI Lite4 screens
Chatagi4 screens

Verdict

The call

The clearest difference is in-app purchases: Chatagi at none against Offline AI Lite's 1. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Offline AI Lite sells 1 in-app purchase, starting at $4.99 per 7 days. Chatagi asks for nothing beyond the download.

Scorecard1 real difference Β· 5 level
Offline AI Lite versus Chatagi: the parameters behind the verdict, then further details
ParameterOffline AI LiteChatagi
PriceFreeFree
Update frequencyEvery 3 monthsβ€”
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone
Requires iOS17.0 β€” better17.6
Further details β€” not scored
Size2.5 GB11 MB
Age rating4+12+
DeveloperSergey FONOVAudienceagi LLC.

In-app purchases

1 purchases

Offline AI Lite

Subscriptions1
  • Offline AI Lite Pro Weekly3 Days trial$4.997 Days
None

Chatagi

No in-app purchases

Questions

Is Offline AI Lite free?
Offline AI Lite is free to download, with in-app purchases available.
Is Chatagi free?
Chatagi is free to download, with no in-app purchases.
Do Offline AI Lite or Chatagi have ads?
Neither Offline AI Lite nor Chatagi shows ads.

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