Comparison

Brain Boost vs Iris

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

Head to head
About

Brain Boost

This AI-powered productivity tool offers a suite of prompts and templates to help users generate content, brainstorm ideas, and streamline tasks. It features AI chat capabilities for instant feedback and inspiration, assisting with everything from writing letters to scripting videos.

Highlights
  • AI-powered prompts and templates
  • Content generation for letters and videos
  • AI chat for brainstorming
  • Writer's block assistance
  • Idea generation
  • Task completion assistance
Features
Read full description

Welcome to Brain Boost (previously GPTalk) - the ultimate productivity app powered by ChatGPT, that will help you achieve your daily goals and unleash your creativity! With Brain Boost, you'll have access to dozens of AI-powered prompts and templates designed to make your life easier. From crafting the perfect letter to generating travel ideas, Brain Boost's AI prompts will help you complete tasks with ease. Say goodbye to writer's block and hello to flawless communication. Need help with video content? Brain Boost's AI video scripting templates will help you create engaging and high-quality videos that your audience will love. But that's not all - Brain Boost also includes a chat feature that allows you to brainstorm ideas and chat with our smart AI. Get instant feedback and inspiration and take your creativity to the next level. With Brain Boost, you'll never have to worry about coming up with ideas or starting from scratch. Download Brain Boost today and unlock your full potential! Brain Boost's state of the art AI is powered by ChatGPT and GPT-3 APIs from OpenAI. Disclaimer: Please note that the AI model used in this app is a custom built language model that is designed to respond to user input in a conversational format. This app is not affiliated with any external entities or companies, and the language model used in this app is not owned or developed by the creators of this application. While the AI model was trained on a large dataset of human language, it is not perfect and may not always provide accurate or appropriate responses. Users should exercise caution and discretion when using this app, as the responses generated by the AI model may not always reflect the views or opinions of the creators of this application. Privacy Policy: http://tikhunt.app/gptalk-privacy-policy/ Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Iris

This app leverages voice commands to help you draft messages, take notes, engage in conversations, and ask questions. It aims to streamline daily tasks and information retrieval through intuitive voice interaction.

Highlights
  • Draft messages with voice
  • Take and recall voice notes
  • Engage in long conversations
  • Ask knowledge-based questions
  • Iterate and rewrite messages
  • Syncs across Apple devices
Features
Read full description

Iris is here to assist you with everyday tasks: • Have Long Conversations: Use Iris to brainstorm, chat through your day, or explore ideas in depth. Just say what's on your mind and let Iris help guide the conversation. • Take Notes: Tell Iris to save to memory anything you want it to remember later—just say, e.g. 'Iris, remember this,’ or ‘make a note of this’, followed by what you’d like Iris to remember. Need to recall it later? Simply ask, e.g. 'What do you remember about this?’, 'Can you remind me about...’, to retrieve it instantly. • Ask Knowledge-Based Questions: Literally, ask Iris anything! ----------- Privacy & Terms of Service: https://voice.computer/privacypolicy

Screenshots

Brain Boost4 screens

Verdict

The call

The clearest difference is rating: Brain Boost at 4.8 against Iris's 3.7. Brain Boost also leads on iOS requirement (16.0 vs 26.0). Iris's advantage is ads (none vs shown) and ratings volume (12 vs 4). On price, update cadence, in-app purchases and monetization model 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. Brain Boost sells 5 in-app purchases, starting at $2.99 per 7 days and Iris sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Brain Boost holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 4 and 12 respectively.

UpkeepUpdate frequency

Brain Boost ships an update every 10 days, Iris fortnightly. The most recent releases landed on September 22, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Brain Boost versus Iris: the parameters behind the verdict, then further details
ParameterBrain BoostIris
PriceFreeFree
Rating4.8 (4 ratings) — better3.7 (12 ratings)
Positive reviews—33.3% of reviews
Number of ratings412 — better
Update frequencyEvery 10 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS16.0 — better26.0
Further details — not scored
Size38 MB145 MB
Age rating4+12+
DeveloperMobiGlanceKpaw, LLC

Customer experience

Brain Boost

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Iris

All ratings12 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews12 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

In-app purchases

5 purchases

Brain Boost

Subscriptions5
  • Premium Weekly3 Days trial$2.997 Days
  • Premium Weekly3 Days trial$5.997 Days
  • Premium Monthly3 Days trial$7.991 Month
Show 2 more
  • Premium Monthly3 Days trial$14.991 Month
  • Premium Annual2 variants$49.991 Year
1 purchases

Iris

Subscriptions1
  • Premium access3 Days trial$4.991 Month

Questions

Is Brain Boost free?
Brain Boost is free to download, with in-app purchases available.
Is Iris free?
Iris is free to download, with in-app purchases available.
Which has better reviews, Brain Boost or Iris?
Brain Boost is rated higher. Brain Boost averages 4.8 out of 5 from 4 ratings, while Iris averages 3.7 from 12 ratings.
Do Brain Boost or Iris have ads?
Brain Boost shows ads; Iris does not.
Which is updated more often, Brain Boost or Iris?
Brain Boost ships an update every 10 days, and Iris fortnightly. Most recently, Brain Boost was updated on September 22, 2026 and Iris on October 7, 2026.

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