nook: second brain

Cara Rosengard Productivity iPhoneiPadiPod touch

nook: second brain is a free Productivity app for iPhone and iPad by Cara Rosengard. Rated 5.0/5 from 3 ratings. Requires iOS 15.1. Updated August 31, 2026.

Rating: 5.0; 3 ratings
Price: Free; on the App Store
Size: 54 MB; Age 4+
Updated: Aug 31; 2026 · v1.5

Download on theApp Store See alternatives

Screenshots

About nook: second brain

Nook — Your Second Brain for Everything You Discover Ever see a coffee shop on TikTok and never find it again? Screenshot a product on Instagram and lose it in your camera roll? Nook fixes that. Nook is a save-anything app that turns scattered screenshots, DMs, and browser tabs into one organized, searchable space. Save it once, find it forever.

What’s new

Version 1.5 · Updated August 31, 2026

New: Product Discovery Finding what you saved just got smarter. With Product Discovery, Nook now recognizes products the moment you save them — pulling in prices, availability, and similar options automatically, so you can compare and decide without leaving the app. Auto-detects products from saved links, screenshots, and social posts Surfaces similar or better options you might've missed Price and availability at a glance, no extra searching

App privacy

The developer, Cara Rosengard, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

User Content: Other User Content
Contact Info: Email Address, Name
Search History: Search History
Identifiers: User ID
Usage Data: Product Interaction
Diagnostics: Crash Data, Performance Data, Other Diagnostic Data

Used for: Product Personalization, App Functionality

App details

nook: second brain is a free Productivity app for iPhone, iPad and iPod touch, developed by Cara Rosengard. It is rated 5.0 out of 5 from 3 ratings on the App Store, requires iOS 15.1 or later and is 54 MB to download. It was first released on June 30, 2026 and last updated on August 31, 2026.

Category: Productivity
Rating: 5.0 / 5 (3 ratings)
Price: Free
Version: 1.5
Size: 54 MB
Requires: iOS 15.1 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: June 30, 2026
Last updated: August 31, 2026
Developer: Cara Rosengard

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Alternatives to nook: second brain

Looking for apps like nook: second brain? Here are 6 similar apps on the App Store. The highest rated is Nooklo — Deep Work (5.0/5), and all 6 are free to download.

nook: second brain vs. alternatives
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