Comparison

AI Chat vs Second Brain

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

Head to head
About

AI Chat

This AI-powered chatbot provides accurate and comprehensive answers to complex questions. It clarifies details, helps with writing, and can solve math problems, acting as a creative assistant for both personal and professional use. Enjoy an ad-free, intuitive experience for quick information retrieval.

Highlights
  • AI-powered question answering
  • Writing and text improvement
  • Math problem solving
  • Organized and comprehensive responses
  • Ad-free experience
  • Search history log
Features
Read full description

Download the ultimate question-answering companion! With the power of advanced AI technology, Nera AI Chat can provide accurate and reliable answers to the most complicated questions. The main advantage of the Nera AI is that it will clarify all the missing details to make the perfect text or find the right answer. This means you don't have to worry about typos, missed information, or searching for the right answer. With Nera AI, you can simply ask and receive the information you need in a friendly, conversational manner. Whether you're looking to improve your personal or professional texts, Nera AI is the perfect solution! Simply type in your query and get a comprehensive and organized response, perfect for research or everyday use. This is your pocket AI bot, which can help unleash your creativity. It gives you an opportunity to write any essays, solve math tasks, and get the information you need, faster than ever before! Start exploring the world of Artificial Intelligence. Features – Quickly get answers to your questions with the help of AI technology – Organized responses provide comprehensive information – Browse through an extensive database of knowledge – Keep track of your searches with a history log – Enjoy a sleek, intuitive user interface – Meet deadlines using top content – No ADS Discover the limitless potential of Artificial Intelligence with the new AI app. Terms Nera has in-app purchases. Try your first query for free, then purchase a message packs to send new messages. Read our Terms of Service at: https://aiopen.online/privacy For the Privacy Policy, please visit: https://aiopen.online/termsofuse

About

Second Brain

This AI chatbot uses GPT technology to generate creative content like stories and songs, answer questions, and provide entertainment. It offers a premium subscription for enhanced features and a free trial period.

Highlights
  • AI-powered writing assistance
  • Story and song generation
  • Question answering
  • Joke telling
  • GPT technology integration
Features
Read full description

Second Brain is a revolutionary AI chat bot powered by GPT Technology. It can write stories, songs, answer your questions, tell a joke and much more! Privacy Policy: https://sites.google.com/view/ai-app-privacy/home User Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

AI Chat4 screens
Second Brain4 screens

Verdict

The call

The clearest difference is ads: Second Brain at none against AI Chat's shown. AI Chat's advantage is update cadence (weekly vs every 4 weeks). On price, rating, ratings volume 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. AI Chat sells 8 in-app purchases, starting at $5.99 per 7 days and Second Brain sells 3 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for AI Chat against 4.8 for Second Brain. Both are backed by a comparable volume of ratings — 126 and 61 respectively.

UpkeepUpdate frequency

AI Chat ships an update weekly, Second Brain every 4 weeks. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
AI Chat versus Second Brain: the parameters behind the verdict, then further details
ParameterAI ChatSecond Brain
PriceFreeFree
Rating4.7 (126 ratings)4.8 (61 ratings) — better
Positive reviews25.0% of reviews—
Number of ratings126 — better61
Update frequencyWeekly — betterEvery 4 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.4 — better16.6
Further details — not scored
Size40 MB78 MB
Age rating12+17+
DeveloperAirShapeTairs Rzajevs

Customer experience

AI Chat

All ratings126 ratings
Positive91.3%
Neutral2.4%
Negative6.3%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Second Brain

All ratings61 ratings
Positive93.4%
Neutral1.6%
Negative4.9%

In-app purchases

8 purchases

AI Chat

Subscriptions6
  • Nera AI Unlimited Access3 Days trial$5.997 Days
  • Unlimited Monthly Subscription3 Days trial$19.991 Month
  • Unlimited AI Chat$29.991 Month
Show 3 more
  • Nera AI Unlimited Access$44.991 Year
  • Unlimited Annual Subscription7 Days trial$89.991 Year
  • Unlimited AI Chat3 Days trial$129.991 Year
One-time2
  • 20 AI Chat Messages$9.99
  • 100 AI Chat Messages$19.99
3 purchases

Second Brain

Subscriptions3
  • Premium for one Week3 Days trial$5.997 Days
  • Premium for one Month3 Days trial$9.991 Month
  • Premium for one Year3 Days trial$39.991 Year

Questions

Is AI Chat free?
AI Chat is free to download, with in-app purchases available.
Is Second Brain free?
Second Brain is free to download, with in-app purchases available.
Which has better reviews, AI Chat or Second Brain?
Second Brain is rated higher. AI Chat averages 4.7 out of 5 from 126 ratings, while Second Brain averages 4.8 from 61 ratings.
Do AI Chat or Second Brain have ads?
AI Chat shows ads; Second Brain does not.
Which is updated more often, AI Chat or Second Brain?
AI Chat ships an update weekly, and Second Brain every 4 weeks. Most recently, AI Chat was updated on November 3, 2026 and Second Brain on November 3, 2026.

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