Stories Designer1.3.8 - App Store

Stories Designer is a complete studio for interactive fiction. Write the prose, branch the paths, wire up the game mechanics, and then play the whole thing in an immersive reader - all in one app, all on your device.

WRITE
Chapters, pages, and a rich text editor with formatting, images, and Writer's Notes for the plan behind the plot. Page revisions let one page have several versions, so a reader who loops back finds something new.

BRANCH
Give any page as many choices as it needs. Point a choice at another page, a whole chapter, or a Side Quest that returns where it left off. Add several destinations and the story picks one at random, so no two playthroughs match.

BUILD A GAME, NOT JUST A BOOK
. Inventory: items, stats, quests, and pins the reader carries in a Backpack
. Conditions: show, hide, or unlock choices based on what the reader has done
. An expression language for real arithmetic and logic on stats
. Shortcodes that drop live values straight into your prose
. Conditional prose blocks - If / Else If / Else - so a paragraph rewrites itself

SEE THE WHOLE STORY
The visual Designer lays your story out as a node graph you can drag, auto-arrange, and edit in place, with full undo. The Inspector traces every path, and Debug Mode finds the dead ends, orphan pages, and broken links before a reader does.

READ IT LIKE A GAME
An immersive reader with bookmarks, the Backpack, per-story fonts and colors, images, background music, and video. Have the story read aloud, then answer out loud - say "go left" or "continue" and the story listens. Perfect for the car, a walk, or reading to someone.

AN AI THAT ACTUALLY KNOWS YOUR STORY
Bring your own API key from Anthropic (Claude), Google (Gemini), OpenAI, or xAI (Grok), or use the built-in credits. The assistant reads your pages, drafts new ones, writes options and conditions, wires up inventory, and keeps continuity - it edits your story with you rather than handing back a wall of text. Set its persona and voice per story so a horror novella and a children's tale don't sound the same. Generate illustrations, music, and narration audio to match. Every request's token use and cost is tracked in plain view.

OFFLINE FIRST, YOURS ALWAYS
Everything is stored on your device and everything works with no signal at all. Optional cloud sync keeps your library matched across phone, tablet, and Mac. Back up, restore, and archive whenever you like.

SHARE IT
Export a complete story as a single file - mechanics, media, and all - or as plain text you can edit anywhere. Import what other authors send you and read it the way they built it.

BUILT WITH CARE
Material 3 design that picks up your system colors, light and dark themes, large touch targets, and a layout that opens up on tablets, foldables, and desktop.

An optional subscription unlocks cloud sync, online storage, and a monthly allowance of AI credits. You can skip it entirely: bring your own AI key, or use no AI at all - every authoring and reading feature works offline and unpaid.

Whether you're writing a gamebook, a training scenario, a bedtime adventure, or a sprawling RPG campaign, Stories Designer gives you the whole workshop.

Version History Enhanced & Optimized AI Story Assistant.
AI Story generation improvements.
Better menu for Cloud Sync, AI, Budget, Settings.
More accurate cost tracking.
Fixed Import/Sync issue.
Fixed batch narration generation.
Updated AI model support.
Improved LaText support in chat.
Various enhancements & bugs fixes. 1.3.8 Sep 15 A year of work since 1.1.0 — the biggest release this app has had.

STORY ASSISTANT
The AI no longer just hands back prose for you to paste. It reads your story and edits it alongside you: drafting pages, writing options and conditions, wiring up inventory, creating Side Quests, and keeping your notes in order. Give it a persona per story so a horror novella and a bedtime tale don't sound alike.

ILLUSTRATE AND SCORE YOUR STORY
Generate images, background music, video, and spoken narration without leaving the app, then place any of it on a page. The new Media library keeps everything organised by story.

THE STORY MAP, REBUILT
Your story is now a graph you can drag, auto-arrange, and edit in place, with undo for everything. Dead ends, orphan pages, and broken links are visible at a glance.

REAL LOGIC, REAL MATH
A new expression language does arithmetic and comparisons on your stats, so conditions can weigh a value instead of only checking whether something exists. Conditional prose blocks — If / Else If / Else — let a single paragraph rewrite itself around what the reader has done.

SIDE QUESTS
Send a reader off on a detour that returns them exactly where they left it.

KNOW WHAT THE AI COSTS
Every request's tokens and cost are tracked in plain view, with a monthly spend cap for your own API keys. An optional subscription adds cloud sync, online storage, and a monthly allowance of AI credits.

A REBUILT INTERFACE
A full Material 3 redesign that picks up your system colours, with layouts that open up on tablets, foldables, and desktop.

Plus hundreds of fixes across sync, import and export, and the editor. 1.3.7 Sep 10 Per user request, we added support for multiple conditions in Story Settings.

Also:
Improved autosave for notes.
Added AI chat box within notes.
Improved AI model options.
Updated iOS version supported. 1.1.0 11/06/2025 Fixed AI response time.
Fixed font formatting on Enter.
Revised grammar and spell check.
Added Gemini Pro support.
Improved AI prompts. 1.0.6 03/18/2024 Fixed AI response time.
Fixed font formatting on Enter.
Revised grammar and spell check.
Added Gemini Pro support.
Improved AI prompts. 1.0.5 02/27/2024 Fix font formatting on Enter.
Revised grammar and spell check.
Added Gemini Pro support.
Improved AI prompts. 1.0.4 02/27/2024 upgraded rich text editor, which now retains font on enter 1.0.3 01/01/2024 Editor upgrade and upgrades to improve compatibility for newer devices. 1.0.1 12/18/2023 1.0.0 08/31/2023