4i Author
A novel writer. Get it?
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Write the prompt, read the chapter as it lands. Story Writer drafts long fiction chapter by chapter and keeps your characters, timeline and facts straight the whole way.
Story Writer writes long fiction with you, one prompt at a time. You say what happens next; it writes the chapter — and it keeps writing, chapter after chapter, without losing track of who your characters are or what has already happened.
HOW IT WORKS
Set up a story with a background and a style guide. Past tense, close third, no em-dashes — whatever you want held to. Both are sent with every turn, so a change is felt from the next prompt onwards.
Then write a prompt. The chapter arrives a paragraph at a time as it is written, so you can read it as it lands or put the phone down and come back to it finished.
WHILE IT IS WRITING
• Steer — add an instruction to the turn already running.
• Stop — everything written so far is kept.
• Queue — write your next prompts without waiting. They run in the order you put them in, you can reorder them, and nothing is ever discarded on your behalf.
KEEPING A LONG STORY STRAIGHT
• Facts — names, places and what is already true, carried into every turn.
• Review — a pass that reads the whole story and reports contradictions in names, timeline and detail, then rewrites the parts you approve.
• Chapters — jump anywhere in the story, with a running word count.
ALSO
• Attach photos to a prompt and have them placed in the story.
• Brainstorm — give it a handful of words and it sketches three ways in.
• Share the whole story as a text file whenever you want it out of the app.
• A warm paper theme and a dark one, or follow the system.
WHAT IT COSTS
Five turns every day are free. After that a turn costs 0.001 credits and a whole-story review costs 0.02, so the smallest credit pack — 3.5 credits, about 3,500 turns — is probably enough for at least ten full stories of fifty chapters each, including the reviews and rewrites along the way.
Credits never expire and there is no subscription. They belong to your 4i account rather than to this app, so they also work in the other 4i apps, and credits bought elsewhere are already here.
THE ACCOUNT
The writing runs on 4i's servers, so a free 4i account is needed and your stories live on it.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Niels Brinch, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Niels Brinch
- Size
- 38.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Cartoon or Fantasy Violence
Mature or Suggestive Themes
- In-App Purchases
Yes
- 12 credits $14.99
- 26 credits $29.99
- 3.5 credits $4.99
- Copyright
- © 2026 Gyxi