Trace: Unofficial AO3 Reader
Fanfiction EPUBs, read offline
About
This app allows users to privately read and organize EPUB files downloaded from AO3 offline. It offers customizable reading settings, library management with personal tags and notes, and robust search and filtering capabilities for fanfiction.
What's New in Trace
1.0.9
August 26, 2026
Improved metadata recovery for older and modified AO3 EPUBs, including more reliable completion status, tags and story details. You can now share EPUB files directly from Trace Reader. This update also improves linked-folder scanning, import summaries and library layout.
MoreSubscription plans
Trace Unlimited Yearly
Unlimited library size and reading stats
Developer apps
FAQ
Does Trace have ads?
Trace is ad-free, allowing for an uninterrupted reading experience. This is a key benefit for users who prefer to focus on their reading without distractions.
What devices does Trace support?
Trace is available for iPhone and iPad, offering a seamless reading experience across Apple devices. This ensures accessibility for a wide range of mobile users.
How much does Trace cost?
Trace is free to download and use for reading, importing, and organizing EPUBs on your device. Optional subscription plans are available for advanced features like unlimited cloud sync.
What are the subscription options for Trace?
Trace offers 'Trace Unlimited Monthly' for $3.99 and 'Trace Unlimited Yearly' for $39.99, providing unlimited reader sync and reading statistics. These subscriptions enhance the cloud-based features of the app.
Is Trace safe to use with AO3 accounts?
Trace is an unofficial, independent app and does not require your AO3 login details. It prioritizes user privacy by keeping account information secure and never asking for credentials.
How often is Trace updated?
The latest version of Trace is 1.0.2, and it was last updated on August 8, 2026. This indicates a recent update, suggesting ongoing development and support for the application.
What is the age rating for Trace?
Trace has an age rating of 12+, making it suitable for a young adult audience. This rating suggests content and features appropriate for users aged 12 and above.
Can I sync my reading progress with Trace?
Yes, Trace offers an optional sync feature with a free Trace account to sync up to 100 stories and restore library details and reading progress on new devices. Trace Unlimited provides unlimited sync capabilities.