Comparison

OThree AI vs microAI

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

Head to head
About

OThree AI

This AI chat application provides instant answers and assistance using advanced language models. It offers both offline and cloud-based access, prioritizing user privacy with a zero-data-storage policy. Enjoy seamless compatibility across Apple devices for a convenient AI experience.

Highlights
  • Offline Large Language Model
  • Ultra-fast Cloud LLM
  • Zero-data storage privacy
  • Universal Apple device compatibility
  • Quick answers and brainstorming
  • Drafting emails and documents
Read full description

Meet OThree AI, the AI chat app that's ready to assist you anytime, anywhere. Experience the power of cutting-edge language models right at your fingertips, completely free and with unwavering privacy. Key Features: Offline Access: No internet? No problem! OThree AI includes a local Large Language Model that works even when you're offline. Perfect for emergencies, travel, or simply when you want to stay private. Get helpful responses and information, regardless of your connection, completely free! Ultra-Fast Cloud LLM: When speed and up-to-date knowledge are crucial, OThree AI's cloud-based LLM delivers lightning-fast, intelligent responses. Stay informed with the latest information and enjoy dynamic, engaging conversations. Privacy First: Your privacy is our top priority. OThree AI is designed with a zero-data-storage policy. We never store your conversations. Chat with confidence, knowing your data remains yours. Universal Compatibility: OThree AI works seamlessly across your Apple devices. Use it on your iPhone, iPad, Mac, and even your Apple Vision Pro. OThree AI is perfect for: • Getting quick answers to your questions (offline & free with Local LLM) • Brainstorming ideas and creative writing • Drafting emails and documents • Learning new things and exploring different topics • Having engaging and informative conversations Download OThree AI today and unlock the potential of AI, with privacy and convenience at its core! Start for free with our Local LLM! Terms of Use: https://othreeai.com/eula Privacy Policy: https://othreeai.com/privacy

About

microAI

This app provides a private, local AI workspace that organizes your thoughts, projects, and files. It allows you to run AI chat on your device, manage AI models, and build a personal memory system for enhanced productivity and offline use.

Highlights
  • Private Memory Map
  • Local AI Chat
  • Long-Term Memory
  • Projects With Context
  • Chat With Local Files
  • Private Journal
  • GGUF Model Management
Features
Read full description

AI ON YOUR PHONE. POWERED BY YOUR DEVICES. Run private AI directly on your phone. Need more power? Connect your own computer and let it handle the heavy AI work while you keep using microAI from your phone. No sign-up. No cloud AI account required. Ask questions. Talk instead of type. Show AI a photo. Read a file. Work on a project. Save something for later. microAI brings local AI, your devices, and your private context together in one workspace. YOUR PHONE. YOUR COMPUTER. YOUR AI. Your phone can run compatible local AI models on its own. When you need more power, connect your own computer. Scan a QR code and your approved Mac or browser can run the model while you continue using microAI from your phone. That means you can move heavier AI work off your phone—reducing the load, heat, and battery use caused by demanding on-device inference. Use your phone when that is enough. Use your computer when you want more power. You choose where your AI runs. NO SIGN-UP. NO CLOUD AI REQUIRED. Local AI should not require another account. microAI can run compatible models directly on your devices without requiring a cloud AI account. Your computer can also become your own AI compute node. Open the microAI website on your computer, load a compatible local model, scan the QR code, and connect. No separate website account is required. DIFFERENT AI FOR DIFFERENT JOBS Not every task needs the same AI. microAI includes task-focused AI helpers: • Private Chat — Ask, write, plan, brainstorm, or talk. • Image Chat — Ask questions about photos and screenshots. • Voice Chat — Talk instead of typing. • Review Writer — Turn your experience into a clear review. • Photo Tagger — Create titles, descriptions, and keywords for photos. Choose which compatible model powers each job. Use a small model for quick everyday tasks, a vision model for images, or a stronger model running on your computer when you need more capability. TALK. SEE. READ. AI should work with more than a text box. Talk naturally with Voice Chat. Add a photo or screenshot and ask questions about what you see. Add a supported PDF, TXT, or Markdown file and ask questions about its contents. Use microAI for writing, research, documents, photos, ideas, and everyday questions. COME BACK WITHOUT STARTING OVER Your useful context should not disappear into old chats. Create Projects to keep related conversations, files, instructions, and context together. Save quick thoughts in Journal. microAI can remember useful context and bring it back when relevant. Memory Map gives you a visual way to explore your conversations, projects, journals, models, and memories. LOCAL AI WITHOUT THE USUAL SETUP You should not need to be an AI engineer to start using local AI. Find a compatible model, download it, and start. microAI keeps model discovery, downloads, switching, and resource management in one place. Advanced users can also import compatible GGUF models. Actual performance depends on your device, model, and connection. YOUR AI. YOUR DEVICES. YOUR DATA. When AI runs on your phone, compatible models process requests directly on your device. When you connect your own computer, the model runs on the computer you approve while you continue using microAI from your phone. Your model files stay on the device running them. You decide when a remote compute node is connected and used. Internet access may still be required for model discovery and downloads, purchases, ratings, app services, and certain system features. RUN AI YOUR WAY. On your phone when you want portability. On your computer when you want more power. No sign-up. No cloud AI account required. Your AI. Your devices. Your choice. Want to use your computer with microAI? Visit: https://linklocalai.com/ By using microAI, you agree to Apple's Standard End User License Agreement (EULA). Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OThree AI3 screens
microAI4 screens

Verdict

The call

The clearest difference is iOS requirement: microAI at 16.4 against OThree AI's 18.0. On price, update cadence, ads and in-app purchases 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. OThree AI sells 1 in-app purchase, starting at $14.99 per month and microAI sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
OThree AI versus microAI: the parameters behind the verdict, then further details
ParameterOThree AImicroAI
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—2 — better
Update frequencyEvery 9 daysEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, Mac
Requires iOS18.016.4 — better
Further details — not scored
Size1.7 GB234 MB
Age rating17+9+
DeveloperSeven Delta Seven LLCgenghong Xie

Customer experience

OThree AI

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

microAI

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

OThree AI

Subscriptions1
  • OThree Premium7 Days trial$14.991 Month
4 purchases

microAI

Subscriptions2
  • microAI Pro – Monthly$0.991 Month
  • microAI Pro – Yearly7 Days trial$5.991 Year
One-time2
  • Remove Ads$4.99
  • microAI Pro – Lifetime$9.99

Questions

Is OThree AI free?
OThree AI is free to download, with in-app purchases available.
Is microAI free?
microAI is free to download, with in-app purchases available.
Do OThree AI or microAI have ads?
Neither OThree AI nor microAI shows ads.
Which is updated more often, OThree AI or microAI?
OThree AI ships an update every 9 days, and microAI every 9 days. Most recently, OThree AI was updated on October 2, 2026 and microAI on October 7, 2026.

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