3 Answers2026-07-15 07:31:14
I tried BookFusion based on a comment here and… it’s okay. The sync works, but the free tier is quite limited in storage (100MB). If you read mostly text-based EPUBs, that’s a lot of books, but a few PDFs will eat it up. The interface feels a bit slow compared to native apps. It’s a viable option if you’re dedicated to an open, non-corporate platform and don’t mind the limits or potentially paying later. For unlimited free sync, Google Play Books or the Kindle personal document method are still more generous.
2 Answers2026-07-15 11:00:45
Aldiko is a classic, but the older Aldiko Book Reader (not Aldiko Next) doesn't do cloud sync in the free version. You'd need the paid upgrade for that. So, scratch that one off your list if sync is a must-have for no cost.
4 Answers2026-07-15 07:06:10
I wish Goodreads would properly integrate with Kindle or other apps to auto-sync progress. The manual update is a chore. Imagine finishing a chapter on your Kindle and having your Goodreads status auto-update. That's the dream. The technology is obviously there; it's a business deal problem. Until then, our progress exists in separate silos: one for reading, one for social.
2 Answers2026-07-15 08:28:47
For purely organizational syncing—keeping your library and collections the same across devices—Google Play Books and Kindle are top. For progress syncing, they’re also top. But if you want to annotate and highlight, and have those sync too, Kindle is the strongest. My highlights and notes appear on all my devices and are even accessible on the web. Google Play Books does this too, but I find its note-taking interface less polished. If you’re a student or someone who actively engages with text, this is a huge factor. The free app becomes a powerful study tool when all your annotations are always with you.
2 Answers2026-07-15 13:17:28
Finding a truly seamless sync can be a nightmare. From my testing, Kindle's own app remains the king for that specific feature, even if you sideload your own DRM-free EPUBs now. The progress updates almost instantly between my phone and tablet, and it even remembers where you stopped if you switch between the app and a physical Kindle device. The catch, of course, is the ecosystem lock-in, but for a free, reliable sync, it's hard to top.
Google Play Books also does a solid job for uploaded PDFs and EPUBs, though its reading features feel a bit more utilitarian.
If you stick with one of these major platforms, the headache of losing your place disappears.
6 Answers2026-07-15 20:48:31
it works just as well between iOS devices. You can buy books from Kobo or load EPUBs via Adobe Digital Editions, and your place follows you. The app's reading interface is clean and pleasant. It's a strong alternative if you prefer not to feed the Amazon machine and want a bookstore that isn't tied to a specific hardware ecosystem like Apple's.
4 Answers2026-07-15 00:10:16
The frustrating thing is when an app has sync but it’s buried in settings or doesn’t work reliably unless you have a constant internet connection. Good sync should be the default, obvious, and work offline-to-online seamlessly. You should finish a chapter on a plane, land, and have your progress update automatically when you get signal.
Kindle handles this offline gap perfectly. Some other apps I’ve tried require you to manually open the book while online to 'push' your progress. That’s not real sync; that’s a manual backup. Always check reviews for comments on offline sync behavior.
5 Answers2026-07-15 07:18:24
I use Goodreads as my manual sync. Hear me out. I don't rely on app automation. When I stop reading, I quickly update my 'currently reading' progress on Goodreads via the website or app. Since Goodreads is just a website, I can check it on any device to see what page or percentage I was at.
It's not automated, but it's platform-agnostic, works with any reading app or physical book, and creates a nice reading log as a bonus. It adds a 10-second ritual to my reading session that I've come to enjoy. Low-tech, high-reliability.