Epub Fixer is an offline utility for repairing EPUB formatting, encoding, and hyperlink errors on iOS and Android.

The App DNA

What makes this app unique?

The app removes the friction of failed e-reader imports, displacing manual file-editing workflows that require technical expertise.

For E-book readers who encounter formatting or import errors when transferring files to Kindle and other e-readers.

What does it look like?

Key features

EPUB Repair Engineedge

Automated correction of internal hyperlinks, language tags, and UTF-8 encoding.

Offline Processingedge

Local file modification without server uploads or cloud dependency.

Unlimited Fixesstandard

Premium-tier gate via one-time purchase.

How much does it cost?

freemiumFree tier: one EPUB fix per dayPro tier: unlimited fixes via one-time purchase

The freemium model uses a daily usage cap to gate utility, converting power users via a single one-time purchase.

Velocity

Maintenance developmentperformanceopaqueShow more...

Epub Fixer is currently in a maintenance phase, having shipped only two minor updates in the last 207 days. The development cadence is infrequent, averaging roughly one release every three to four months. All recent activity has been restricted to generic bug fixes, with no new features or functional improvements introduced to the platform. The lack of recent updates suggests a focus on stability rather than active product evolution.

See all version history

Who built it?

Athanasios Dogrammatzis

2 apps tracked · Utilities

Fishing GPS NavigationFishing GPS Navigation
Explore the full publisher profile

User Sentiment

What do users think recently?

The recent review mood reads thrilled. Users appreciate the latest update successfully resolves indexing errors for epub files, improving the core reading experience.

How are ratings & reviews evolving?

App Store
0.00 · 0
Google Play
0.00 · 0

What users say, by theme

What Users Love
  • The latest update successfully resolves indexing errors for epub files, improving the core reading experience

1 of 1 recent reviews analyzed · limited sample

Read the full review analysis

Competition

Competitive landscape for Epub Fixer

How's the Utilities market?

Epub Fixer occupies the niche for privacy-conscious, offline-first e-book repair. The lack of recent feature updates relative to the utility category suggests a stable but stagnant market position.

Read the market outlook

The rivals identified

Unlock the deeper market read.

Access the full report for free

The Analyst's Read

Key takeaways for Epub Fixer

Where is it heading?

The e-book utility market is consolidating around native platform tools, leaving Epub Fixer in a stable but vulnerable position. Continued reliance on manual file repair without feature evolution will likely lead to a slow decline in relevance as Kindle and other e-readers simplify their import logic.

  • The maintenance-only release cadence indicates the developer is prioritizing stability over new feature expansion, which limits growth potential.

The SWOT

Core Strengths
  • Offline-first architecture eliminates connectivity dependencies
Critical Frictions 1 weakness inside
Growth Levers
  • Localized pricing could capture high-ARPU international markets
Market Threats 1 threat identified

Next best moves

1 Maintain

Audit Kindle import logs because native platform updates threaten the core value proposition → protect user retention

The counter-intuitive read

The lack of cloud-sync is not a limitation but a competitive advantage…

Read the full take

Since the last report: The competitive outlook shifted from a focus on feature stagnation to an existential concern regarding native platform improvements on Kindle. The app's core utility is now framed as vulnerable to platform-level updates rather than just web-based competition.

Bottom line

Epub Fixer provides a reliable, privacy-centric solution for e-book formatting, but the current maintenance-only cadence risks obsolescence as e-reader platforms improve native file handling.

Unlock 1 critical friction, 1 market threat and the analyst’s take.

Access the full report for free

FAQ

Is Epub Fixer safe for my personal e-book library?
Yes, Epub Fixer operates entirely offline, meaning your files never leave your device and are not tracked or uploaded to any server.
How many EPUB files can I fix for free?
Free users can fix one EPUB file per day. Unlimited fixes are available through a one-time Pro purchase.
Does Epub Fixer work with Kindle?
Yes, Epub Fixer is specifically designed to repair formatting and encoding issues that often cause EPUB files to fail when imported into Kindle.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Epub Fixer, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The competitive outlook shifted from a focus on feature stagnation to an existential concern regarding native platform improvements on Kindle. The app's core utility is now framed as vulnerable to platform-level updates rather than just web-based competition.

added

New existential threat identified

shifted

Outlook narrative pivot

declined

Feature position downgrade

Cite this report

Marlvel.ai. “Epub Fixer Intelligence Report.” Updated Aug 21, 2026. https://marlvel.ai/apps/epub-fixer

Agent Markdown (.md)See methodologyContact support

Data licensed under CC-BY-NC 4.0