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Best Book Writing Apps for iPhone (2026)
Quick answer
Werdsmith: Writing App is the top-ranked of the 9 tiered book writing apps on iPhone, at S tier with 4.6/5 from 11,741 ratings.
Tier list
Top 5
- 1
- 2
Ulysses: Writing AppS tier★ 4.6 · 3.4K ratings · Free + IAP - 3
Book Creator: Author AIS tier★ 4.5 · 4.3K ratings · Free + IAP - 4
★ 4.5 · 3.2K ratings · Free + IAP - 5
★ 4.5 · 1.0K ratings · Free + IAP
Key takeaways
- Werdsmith ranks #1 of the 9 tiered book writing apps, S tier with a score of 93 out of 100.
- Werdsmith has the most App Store ratings here: 11,741, averaging 4.6/5.
- 4 of the 9 tiered apps reach S or A tier.
- Ulysses carries Apple's Editors' Choice badge.
What belongs in this list
Write a whole book, with outline and chapters, using drafting tools or AI help.
Not here: a novel-only story writer alone; an essay writer alone; a general chatbot that could be prompted to write a book alone; writing lessons alone; a template or cover pack alone
More lists: Best Novel Writing Apps
How we pick
For this list we ask the App Store the same searches a person would, in several countries, and keep every app it returns. A model reads each app's listing and rejects the ones that only mention the use case. Every app that stays is scored out of 100 from four parts, each 0 to 100 and averaged: its App Store rating, how many people rated it, where the App Store itself ranks it for this list's searches, and how recently its current version shipped. An app showing Apple's Editors' Choice badge gets a fifth part of 100, which can only lift its score. Apps whose maker has verified ownership get a small score component, because an active maker is a sign the app is kept up to date. It never decides a tier on its own. Updated daily. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. Read the full method →
Compare every app
| # | App | Tier | Score | Rating | Ratings | Price | Updated |
|---|---|---|---|---|---|---|---|
| 1 | Werdsmith: Writing AppBest overall | S | 92.8 | 4.6 | 11,741 | Free + IAP | |
| 2 | S | 92.3 | 4.6 | 3,378 | Free + IAP | ||
| 3 | S | 91.4 | 4.5 | 4,280 | Free + IAP | ||
| 4 | A | 86.1 | 4.5 | 3,174 | Free + IAP | ||
| 5 | Fortelling - Story Writingprovisional | C | 62.8 | 4.5 | 1,044 | Free + IAP | |
| 6 | C | 62.0 | 4.3 | 2,351 | Free + IAP | ||
| 7 |  AI Story Generator - InkPalprovisional | C | 60.5 | 4.2 | 373 | Free + IAP | |
| 8 | D | 56.1 | 4.2 | 5,390 | $23.99 | ||
| 9 |  Big Lemon: Novel Writerprovisional | F | 24.1 | n/a | 0 | Free + IAP |
New in the last 30 days
Questions people ask
What is the best book writing app for iPhone?
Werdsmith: Writing App, S tier, ranked #1 of 9, rated 4.6 by 11,741 people.
Which book writing apps are free?
8 of 9 are free to download: Werdsmith: Writing App (S), Ulysses: Writing App (S), Book Creator: Author AI (S), MyStory.today: Write a Book (A) and more. 8 of them sell in-app purchases.
Which book writing app has the best App Store rating?
Werdsmith: Writing App at 4.6 from 11,741 ratings.
How many book writing apps reach S or A tier?
4 of 9.