Comparison

Cortex | Online & Offline AI vs Second Eye

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

Head to head
About

Cortex | Online & Offline AI

An advanced AI platform offering a hub for powerful models, with offline capabilities and extensive customization. Features dynamic chat, advanced tools, voice interaction, and specialized AI assistants. It's an open-source solution prioritizing user privacy.

Highlights
  • Dynamic AI model selection
  • Offline AI functionality
  • Advanced tool integration
  • Real-time voice chat
  • Flow Mode for AI debates
  • Customizable AI personalities
  • Open-source platform
Read full description

Welcome to the core of artificial intelligence! Cortex is an advanced AI platform that brings together hundreds of the world’s most powerful models into a single hub. It works even without an internet connection so you're never left stranded, collects zero chat data, and is completely customizable. Think that's all? • Dynamic Chat: Stop wasting time choosing an AI. Cortex automatically selects the best model for every single prompt, perfecting the responses you get. • Advanced Tools: Weather, code execution, calendar, crypto data, global stock markets, and much more. Cortex's AIs are fully equipped! • Voice Chat: Stop typing. Talk to your AIs as fluently and naturally as you would with a human, using real-time voice chat—even in offline mode. • Flow Mode: Watch different AI models debate among themselves and solve complex problems autonomously. Or, jump into the discussion yourself and let the chaos begin! • Personal Assistants: Bored of standard AIs? Have deep conversations with specialized characters like a teacher, doctor, lawyer, or even an anime girl. Don't worry—if you get bored of them too, creating your very own AI is just a few clicks away. • Limitless Customization: Shape the interface to match your style and mood with modern, aesthetic themes. • Transparency: Beyond keeping your data private, Cortex is a fully open-source platform. Anyone can inspect our code, or even build their own Cortex. It's STILL not over, but if we tried to explain everything, we’d run out of characters. To experience the rest yourself, download Cortex right now and join the core of AI! Terms of Use: https://vertexishere.com/cortex-terms-of-use/ Privacy Policy: https://vertexishere.com/cortex-privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Second Eye

Features
Read full description

Stop guessing which AI is best - just see for yourself. 2nd Eye runs your question across multiple AI models at the same time and shows you the answers side by side. Compare Claude, Gemini, DeepSeek, and more leading AI models in seconds. WHY 2ND EYE? • Ask once, get answers from multiple AIs instantly • Compare text responses and AI-generated images • Vote on the best answer and build your personal leaderboard • Daily question mode to make AI part of your routine • See response time and cost per model (Pro) FREE PLAN 29 credits/month with 3 top AI models - no credit card needed. PRO PLAN 300 credits/month, choose your own models, unlock runtime and cost display. Expand your credits anytime with the Expand Pack. Whether you're a professional, student, or just curious - 2nd Eye helps you get the best answer, not just an answer. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cortex | Online & Offline AI4 screens
Second Eye4 screens

Verdict

The call

The clearest difference is update cadence: Second Eye at every 2 weeks against Cortex | Online & Offline AI's every 2 months. On price, ads, in-app purchases and device support 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. Cortex | Online & Offline AI sells 10 in-app purchases, starting at $3.99 per month and Second Eye sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cortex | Online & Offline AI ships an update every 2 months, Second Eye every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Cortex | Online & Offline AI versus Second Eye: the parameters behind the verdict, then further details
ParameterCortex | Online & Offline AISecond Eye
PriceFreeFree
Rating5.0 (13 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings13 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size85 MB51 MB
Age rating12+9+
DeveloperYasin CAKIPRAGMATIC TECH INNOVATIONS LTD

In-app purchases

10 purchases

Cortex | Online & Offline AI

Subscriptions5
  • Cortex Monthly Plus$3.991 Month
  • Cortex Monthly Ultra$7.991 Month
  • Cortex Annual Plus$39.991 Year
Show 2 more
  • Cortex Annual Pro3 Days trial$59.991 Year
  • Cortex Annual Ultra$79.991 Year
One-time5
  • 250 Credits$0.49
  • 500 Credits$0.99
  • 1000 Credits$1.99
Show 2 more
  • 2500 Credits$2.99
  • 5000 Credits$3.99
2 purchases

Second Eye

Subscriptions1
  • Pro Monthly$3.991 Month
One-time1
  • Expand Pack$1.99

Questions

Is Cortex | Online & Offline AI free?
Cortex | Online & Offline AI is free to download, with in-app purchases available.
Is Second Eye free?
Second Eye is free to download, with in-app purchases available.
Do Cortex | Online & Offline AI or Second Eye have ads?
Neither Cortex | Online & Offline AI nor Second Eye shows ads.
Which is updated more often, Cortex | Online & Offline AI or Second Eye?
Cortex | Online & Offline AI ships an update every 2 months, and Second Eye every 2 weeks. Most recently, Cortex | Online & Offline AI was updated on November 5, 2026 and Second Eye on October 31, 2026.

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