Clew vs RetroStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clew
Capture and organize quotes, notes, and highlights from books, articles, films, and podcasts. Discover connections between your saved content through powerful tagging and intelligent recommendations. This app acts as a digital commonplace book, synced across all your devices.
- Save highlights from books, web, film, TV, and podcasts
- Organize and search saved content
- Discover connections between saved items
- Tagging and intelligent recommendations
- Syncs across all devices
- Camera scanning for book pages
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Clew is the fastest, easiest way to save passages, quotes, and notes from the things you read, watch, and listen to, so you can start discovering connections between everything you save. Remember the last time you wrote in the margin of a novel, only to finish the book and never see that thought again? How many times have you clipped parts of articles, songs, and podcasts and saved them to a note somewhere, hidden and forgotten? Clew is a single place for all your highlights, clips, and favorite lines—stored, organized, and searchable in one place. It's a commonplace book that you'll always have with you, easily searchable and synced between all your devices. Clew helps you connect thoughts across sources, centuries, and media types through powerful tagging and intelligent recommendations. Start discovering connections between everything you've saved from: - Books and poems you read - Movies and TV shows you watch - Podcasts and audiobooks you listen to - Songs you love - Articles you read online or on paper Simply copy-and-paste text into the app, use the Share extension, or scan book pages and documents with your device's camera to save a new highlight. Clew makes it easy to sort and search your highlights by source (author, website, etc.), date saved, publication year, genre, keywords, and more. Build your collection, and watch as you start finding connections and patterns across books, artists, decades, genres, languages, and more. This is your new favorite place to store, sort, and share clippings from all your favorite media, whether it's a mind-blowing plot twist in a novel, a hilarious quote in a movie or play, a devastating song lyric, a grand discovery in an article, or simply a quirky adjective you can't wait to use in your own writing. This is Clew. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
RetroStack
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RetroStack is a modern, collaborative board application designed for teams to conduct effective retrospectives, brainstorming sessions, and collaborative planning. Built with a focus on real-time collaboration and user experience, RetroStack transforms the way teams reflect and plan together. Key Features: • Real-Time Collaboration – Work together with your team in real-time with instant updates • Multiple Board Templates – Choose from Classic Retrospective, Star Fish, Six Thinking Hats, Pros & Cons, and more • Sticky Notes & Voting – Add colorful sticky notes and vote on ideas with customizable voting limits • AI-Powered Analysis – Get intelligent insights and sentiment analysis from your retrospectives (FREE BETA) • Cross-Platform Support – Works seamlessly on iPhone, iPad, Mac, and web browsers • Flexible Authentication – Sign in with Apple, Google, email, or use anonymously • Easy Sharing – Share boards with team members via secure links or access codes • Export & Import – Save your boards as PDF or JSON files for documentation and backup Team Collaboration: • Anonymous participation for honest feedback • Configurable voting systems (1-10 votes per section) • Real-time updates across all connected devices • Responsive design that works on any screen size • Secure board sharing with expiring access tokens • Board history tracking for easy access to previous sessions AI-Powered Insights: • Team sentiment analysis to understand team mood and dynamics • Automatic action item generation from retrospective feedback • Meeting summaries and key theme identification • Trend analysis across multiple retrospectives • Emotion distribution analysis for team health monitoring Professional Features: • Multiple board templates for different meeting types • Customizable sections (2-6 sections per board) • Advanced export options (PDF with visual layouts, JSON for data) • Import existing boards from JSON files • Board settings and access control • Local storage for offline access to your boards Perfect for: • Agile teams conducting sprint retrospectives • Remote teams needing collaborative planning tools • Brainstorming sessions and ideation workshops • Decision-making meetings with pros/cons analysis • Team building and feedback sessions • Project post-mortems and lessons learned Security & Privacy: • Secure authentication with Firebase • Data encryption in transit and at rest • Anonymous usage option for privacy-conscious teams • GDPR compliant data handling • Local data storage with cloud sync • Secure board sharing with access control RetroStack combines the simplicity of sticky note boards with the power of modern collaboration technology. Whether you're running sprint retrospectives, brainstorming new ideas, or making team decisions, RetroStack provides the tools you need to collaborate effectively and drive meaningful outcomes. Start your next retrospective with RetroStack and experience the future of team collaboration.
Screenshots
Verdict
The clearest difference is in-app purchases: RetroStack at none against Clew's 3. RetroStack also leads on iOS requirement (15.6 vs 18.0). On price, ads 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
Both are free to download. Clew sells 3 one-off in-app purchases. RetroStack asks for nothing beyond the download.
| Parameter | Clew | RetroStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 36 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Twardzik | Clifton Hatfield |
In-app purchases
Clew
- Small Tip - $0.99$0.99
- Generous Tip - $2.99$2.99
- Super Tip - $9.99$9.99
RetroStack
No in-app purchases









