
Free
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About
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/
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What's New in PlotCatalyst Echo
1.0.2
May 15, 2026
Minor bug fix and Settings page organization of TTS options.









