Brain Boost vs Iris
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- AI-powered prompts and templates
- Content generation for letters and videos
- AI chat for brainstorming
- Writer's block assistance
- Idea generation
- Task completion assistance
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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/
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.
- 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
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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
Verdict
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
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.
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.
Brain Boost ships an update every 10 days, Iris fortnightly. The most recent releases landed on September 22, 2026 and October 7, 2026 respectively.
| Parameter | Brain Boost | Iris |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 3.7 (12 ratings) |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | 4 | 12 — better |
| Update frequency | Every 10 days — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 38 MB | 145 MB |
| Age rating | 4+ | 12+ |
| Developer | MobiGlance | Kpaw, LLC |
Customer experience
Brain Boost
Iris
In-app purchases
Brain Boost
- Premium Weekly3 Days trial$2.997 Days
- Premium Weekly3 Days trial$5.997 Days
- Premium Monthly3 Days trial$7.991 Month
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- Premium Monthly3 Days trial$14.991 Month
- Premium Annual2 variants$49.991 Year
Iris
- Premium access3 Days trial$4.991 Month








