BookFusion User Reviews

Customer Experience

Positive experience76.1% of reviews
Neutral9.9% of reviews
Negative experience14.1% of reviews

~ Based on 213 written reviews from the US App Store.

What users say

Is BookFusion Safe?

BookFusion appears safe based on user ratings. AppsHunter Safety Score for BookFusion is 93/100.

This assessment is based on 487 user ratings, with an App Store average of 4.7/5.

Safety Analysis

92.2% of ratings point to a safe experience
2.9% of ratings suggest some concerns
4.9% of ratings point to a risky experience

~ Based on 487 App Store ratings for BookFusion.

Is BookFusion Legit?

BookFusion appears legitimate, with a few gaps. AppsHunter Legitimacy Score for BookFusion is 78/100.

Based on 78 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Perfeito

Testei (juro) mais de 10 APPS similares e este é o melhor que eu encontrei. Têm inúmeras configurações, para agradar a todos. Opções de tipos de rolagem de tela, margem, visual limpo na leitura. Simplesmente perfeito.

Needs attention

Needs attention on the ai reading out loud
The ai stops at certain pages. All the time. And you have to skip 2 pages at a time to pick up the reading.
So it takes your attention off what you’re doing. Driving or working machinery.
Needs look at asap
I paid for it to. But the potential is huge for the company 🌞❤️🌱🏴󠁧󠁢󠁳󠁣󠁴󠁿🙏
Show more

Response from developer

Hi Tomtom81974, It would be better for you to reach out to us at support@bookfusion.com to resolve this issue with your particular case. There might be an issue with that particular book/file that we need to investigate and resolve. Please reach out to us so that we can further assist

The best Cross Plattform reader including PDFs with sync of read position!

I was looking a long time for a cross platform (iOS and Android) reader especially for PDFs. I prefer reading on my Boox e-paper reader which is android based but also want the option to open the same book or PDF on my iPhone or iPad. This does that perfectly. In case of questions the support is reactive with real solutions (not just the AI support circle of doom). I played around a bit with the TTS function. It is quite good but I prefer real audio books read by professional speakers. But if you like that kind of function it is well implemented and works surprisingly well.
I have been using book fusion now for over three years and couldn’t be happier.
Pricing is very reasonable and has not been increased while I was using the service. So another plus.
Show more

Heating issue

The app is great, but the tts makes my iPhone heat up like crazy. I hope that future updates will solve this problem.

Response from developer

Hey BarracudaFickle, You are using the free Local TTS voices. Local TTS voices download the model directly to your phone and processes generating the audio for your book on your phone. Local models will work best for mostly the higher end devices. We suggest you use the Advanced voices that are streamed to your device with realistic and high quality(requires the Advanced plan and above). Alternatively you can use the TTS voices provided by Apple which are not ideal in quality but will also not result in your device getting hot.

Best reading app

I’ve been using this app for years on my devices. It has every QoL features I need, such as auto scrolling, tts at ridiculous speeds and ridiculous horizontal margins (which I use for reading faster on my ipad without having to move my eyes across the screen).

It also has some new TTS voices that work locally and sound amazing.

My only gripe is I need to import my files inside BookFusion instead of keeping them in a folder, such as iCloud or Obsidian. But, no other app has done this well yet (some such as Documents allow this, but the reader is awful and crashes on large books).
Show more

Great service

I love BookFusion. The devs are very responsive in their discord and subreddit as well.

And you can’t beat the price!

This is an amazing app for those who want to read books across different platforms and keep the highlights synced. The best part is the Obsidian plug-in, which imports all of your highlights in a neat fashion and is fully customizable. Wait, I lied. The best part is the monthly subscription price. They’ve made it extremely affordable for people to use unlike those other ridiculous apps that you see a $10 monthly subscription. At 1.99 a month it’s excellent.
Show more

Love it until...

I discovered only 10 books...back to looking for another reader.
But I have to say, it’s really very well done.

One of the best study apps on the market

This is one of the best apps I’ve used for organizing my digital textbooks for study. If you need an app to organize your digital textbooks and read them from any device, this is that app. The website and app integration is seamless. It’s totally free to use, and I don’t need to have a subscription, but I chose to just because I love the developers of this app so much. It makes studying the most convenient thing from anywhere. The interface is clean and simple and the features synergize nicely.
Show more

worth it

if ure looking for an app u can use to have a shared library between ios and windows (what i was desperately looking for lol) this is it.


the library and bookshelf functionality is intuitive and seamless in terms of organizing ur stuff.

the reader is solid and nice to use, i like the warm, paper-ish theme the best for appearance

i have nothing negative to say which is rare for me, well worth the premium sub
Show more

good for grinding books

autoscrolling is a goated feature

Best book reader available

I was a long time user of Marvin app, but after it was shut down it took a long time to find a good replacement. Apple’s books app is okay but doesn’t have enough options to customise. When I found this app it was perfect, I can change the fonts sync my books between my iPhone and iPad, it just does exactly what I want it to do. Five stars.
Show more

Great app

I was looking for a replacement for Marvin as the recent iOS update broke it. This one is almost perfect, and I’d have given 4.5 stars were I able. I have a weak right hand and wanted to be able to swap left and right side tap to advance the page. I also really wanted an app that has autoscroll, that’s my favorite way to read now. BookFusion lets me do these,and autoscroll doesn’t stop at chapter breaks, which I love. It would be the perfect app for me if it had Dropbox integration. I know it’s just a few clicks to open Dropbox and download my files, but I’m lazy.

Thank you for a great reading experience!
Show more

Easy to use reading app

One of the easiest and simple apps with numerous functions and integration. Love how after highlighting you can review all your highlights, comments and has the function to import to obsidian as well, absolutely love this functionality.
Only recommendation would be to annotate the book using Apple Pencil, with this feature, this app could just be a top book reading apps.
Show more

Lovely

It’s an excellent app, you will get everything you need, highlighting, concise notes of the highlights and update across all device and systems. Visual options are also great. I am loving it.

Perfeito

Melhor aplicativo de leitura. Funciona perfeitamente no iOS, Android e pc, com sincronização do progresso.

There is no TTS but it was promised

I downloaded to test TTS implementation (Apple Books works very bad last 3 years) but couldn't find a way to run it. It's simply not exist or hidden too deep.
UPD 28.01.2026: thanks for replying, I've found it!
Unfortunately available TTS models are from like a decade ago - there is no even Siri TTS model :(
Can I use a model from Google / ElevenLabs / Microsoft or a custom local model I trained myself?
Show more

Response from developer

TTS is present and used by many readers. You can enable it by doing the following: 1. Open the book you want to read 2. Click on A at the top right 3. Go to the Advanced Tab 4. Select Audio, enable it and select your voice

Hands Down the BEST EBook Reader App

I was looking for an option that synced all my books between Calibre, Web, IOS and Android; and Book Fusion hits it on the nail. I have raved about this app to all my bookworm friends. Worth every penny and I can’t wait to see their future updates and integration.

So close!

This has everything I need, except decent translation. Apple translate is miserably bad. (Why is it so bad?!) If I could opt for Google translate instead, or really anything else, this app would be perfect for what I want to do. I love that you can bulk download highlights as a .csv. Everything else about this app seems great.
Show more

Absolutely top tier

Outstandingly good. Spiffing