Margins vs PlotCatalyst Echo

Margins is a beautifully designed app for people who love books. - App of the Day in 20+ countries - 4.9 rating (40,000+ reviews) - Featured in USA Today, BookRiot, and more TRACK YOUR READING - Log books, series, authors, recommendations, and more - Track Strava-style goals, stats, and streaks - Curate lists of books you care about SEARCH BOOKS BY VIBES - Search books by mood, plot, setting, vibe, and more - Try things like “books like 1920s Paris,” “thriller with a love triangle,” or “indie romantasy” - You can even turn images from Pinterest or your camera roll into book recommendations BLOCK DISTRACTING APPS - Block social media, notifications, and other apps while you read - Use meditation reading timer for soothing rain sounds CHOOSE YOUR COVERS - Pick the cover that matches your version of the book - Curate covers to fit your aesthetic - Sort your library by color CUSTOMIZE YOUR PROFILE - Turn your picture into a sketched portrait you’d see in a book - Show off your favorite books SEE WHAT FRIENDS ARE READING - Find and follow other book lovers - See what they’re reading in Stories - Enjoy gorgeous, hand-illustrated monthly recaps INVITE YOUR BOOK CLUB - Schedule gatherings - Suggest and vote on books - Log your club’s history LEAVE GOODREADS FOR GOOD - Import from Goodreads, StoryGraph, and Fable - Half-star ratings - Support a small, indie team WHAT PEOPLE ARE SAYING “LOVE this app! so easy to import data from goodreads. it excels where others fail. like letterboxd for books. Really glad there’s finally a good book app out there, i’ve been waiting for something like this!” — scruffythejanitor01 “I love the UI of this app, easy to use and aesthetically pleasing. Also, I've been struggling getting back into reading and the screentime feature has helped me loads. I haven't been able to read this much since 4 years ago. Thank you Margins” — mitakaluvr “The search by vibes is so cool. I am a WWII buff, but this search popped up a two-book WWII saga I had never even heard of, much less read. It ended up being my top read of 2025.” —Michigancolt FREE TO USE Almost all features are free to use. An optional subscription unlocks premium features and priority support. FOLLOW US Instagram: @readwithmargins TikTok: @margins TERMS OF USE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Margins Terms of Service: https://margins.app/terms Privacy Policy: https://margins.app/privacy “Without the margins, writing is just words on a page. But with them, each of us is invited to leave our mark in the endless conversation between books and the people that love them.” — Excerpt from the Margins manifesto

PlotCatalyst Echo is a manuscript review and editing companion for novelists, screenwriters, and long-form writers who want to HEAR their work the way a reader will. Pacing problems, awkward dialogue, and overused phrases that hide on the page jump out the moment they're read aloud — capture the reaction in a voice note anchored to the exact paragraph, then come back to act on it. Turn driving, walking, and commuting time into focused editing passes. LISTEN TO YOUR MANUSCRIPT • Live paragraph highlighting that follows the narrator. • Jump between chapters. Tap any paragraph to start there. • Bookmarks save your spot with one tap. CAPTURE NOTES THE MOMENT IT MATTERS • Voice notes with automatic transcription — dictate hands-free, every note anchors to the exact paragraph you were hearing. • Optional auto-stop timer (15s, 30s, 60s, 90s, 2min, or custom up to 5 min) with an animated countdown ring around the mic. • Typed notes, AI-suggestion notes, and bookmarks side-by-side. • Filter and sort by status, kind, chapter, recency, or location. • Search across all your notes; tap to jump to the underlying passage. HANDS-FREE CAR MODE • Large-button interface designed for safe in-vehicle use. • Giant Play/Pause, skip, and chapter buttons sized for glanceable taps. • One-tap voice notes and bookmarks while you listen — playback pauses on the way in, resumes on save. AI CRAFT TOOLS • Writing assistant: Craft Feedback, Pacing Check, Tighter Rewrite, and free-form prompts on any paragraph or chapter. • Apply AI rewrites as edit overlays — your original text is preserved. • Redundancy check scans the whole book and grades overused words by severity (red / orange / yellow / green). Step through each occurrence, edit in place, or Generate Variations to swap in tailored alternatives. • AI metadata assist for title, subtitle, genre, description. • AI cover artwork generation. EDIT WITHOUT FEAR • Paragraph and chapter title edits are stored as overlays — the source is never mutated. Revert anything, any time. • Find & Replace manuscript-wide with case-sensitive and whole-word matching. • Universal search across manuscripts, chapters, paragraphs, and notes. IMPORT & EXPORT • Import .txt and .docx files; chapters detected automatically. • Export notes as Markdown, JSON, CSV, plain text, or annotated alongside their passages. • Export the manuscript as plain text, Markdown, or Word (.docx). DROPBOX BACKUP & RESTORE (Premium) • Per-book or whole-library backup with one tap. • Quiet auto-backup that pushes changes a few seconds after you stop editing. • Versioned snapshots — roll back to any earlier draft. • Books land as folders containing readable .txt / .md / .html files you can open anywhere, plus JSON data files used for full restore. BRING YOUR OWN AI MODEL (Premium) • Plug in your OpenRouter API key and choose from a curated list of frontier models — Claude, GPT-5, Gemini 2.5 Pro, Grok, DeepSeek, Llama, and more. PERSONALIZATION • Dark and light themes with instant re-themeing. • Selectable accent color for highlights, progress, and active controls. • Reorderable, collapsible Settings cards so what you use sits at the top. PRIVACY • Manuscripts, notes, and bookmarks live on-device. • AI and premium narration calls happen only when you trigger them. • No account required to use the core app. FREE TIER • 3 manuscripts, 10 lifetime AI uses, 5 voice notes per manuscript. PREMIUM (monthly or yearly) • Unlimited manuscripts, AI passes, and voice notes. • Dropbox backup with version history. • Bring your own AI model. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/