Marvin Side-by-Side is a special version of Marvin that helps you manage a second library, and read or study two books at the same time (1). SxS works great with devices that support Split View and Slide over.

- Includes all the features in the regular version of Marvin.
- Keep a second library, great for shared devices in the family (1).
- Read or study two books side-by-side using Slide Over and Split View (1, 2).
- SxS libraries can be protected using a password and Touch ID.
- Easily transfer books to and from Marvin.

Here are a few highlights of this release:

- Built from scratch with a brand new interface.
- Opens DRM-free EPUB books, CBX, and CBR comics.
- Supports all the latest iOS technologies including Split View, Slide Over, Spotlight, Touch ID, Today Widgets, iCloud, and iPad Pro.
- High-fidelity rendering with the most comprehensive set of customization options you're likely to use.
- Multi-theme UI with optional automatic light/dark switching.
- Vertical scrolling with auto scroll, guide bars, and edge tapping.
- Goodreads integration.
- Text-to-speech.
- Karaoke (speed reading).
- External Bluetooth keyboard and remote control support including customizable key commands for in-book navigation and control.
- Side-load your own fonts.
- Reading statistics.
- New library viewing modes and management tools.
- Quick launch panel on iPad.
- Fully customizable, independent, portrait and landscape multi column modes.
- Whole book page numbering.
- Substantially improved highlighting.
- Footnote popups.
- Photo exporer.
- Reading journal with photos, tags, and maps.
- Extensive import and export tools.

(1) the second library and side-by-side reading requires the corresponding Marvin 3 app.
(2) works best on devices that support Split View and Slide Over.

Visit for a complete and impressive feature list.

Marvin SxS opens DRM-free EPUB books (basic support for 3.0), and CBZ/CBR comics.

If you're into DRM-free books, we worked hard to make Marvin the best way to enjoy them.

What's New

Version 3.1.2

This update includes:

* New: Improved compatibility with iOS 11 and latest devices.
* Fixed: Dropbox connectivity problems.
* Updated: Improved Dropbox sync performance.
* Updated: Improved performance of image effects in comic viewer.
* Fixed: Display artefacts on latest devices and system software.
* Updated: Twitter and Facebook share sheets replaced by system share sheet +++
* Miscellaneous performance improvements and fixes.

+++ From iOS 11 onwards, native Twitter and Facebook share sheets need to be replaced with the standard system share sheet. To post you will need the official Twitter and/or Facebook apps installed.

Thanks a lot to everyone who took the time to submit a bug report and provide feedback.

Ratings and Reviews

3.9 out of 5

11 Ratings

11 Ratings

The best ebook reader available


I've been a big Marvin fan done the last version, and this version is much better than its predecessor. The SxS version is an interesting twist — basically a second copy of the same app so that you can have totally separate libraries under separate icons. I use the second copy for my technical books, while the main copy of Marvin holds my pleasure reading fiction and nonfiction.

I was disappointed by the lackluster support for ePub 3 files. Specifically I have some video epubs from A Book Apart that don't render well at all — the video shots bleed over onto the next page and aren't usable, while actually blocking pages. For those few books I have to use iBooks, which I would otherwise be perfectly happy to get rid of.

Also, a nicer page turn animation would be nice, but that's a minor complaint.



Marvin SxS is not complicated. It is sophisticated, flexible, customizable, and beautiful. One reviewer complained about being “required” to pay extra for color schemes. How much were you gouged? About the price of a cup of coffee? The custom themes are not required to use Marvin SxS. However they do add a nice touch. I have zero connection with the developer and I would have gladly paid triple for this app and its themes. Developers who produce elegant and powerful apps (like Marvin SxS) deserve to be supported. Look at the current state of apps in the app store. So many are for children and suckers. When an app like Marvin SxS appears, where it is clear the developer put his/her soul into it, I am grateful. …..If you appreciate a digital book beautifully displayed no app currently does it better then Marvin SxS.



Update: In my initial review I mistakenly believed the in-app-purchase color scheme was for the actual reading, but it turns out it's only for the UI, which I couldn't care less about, so the rating has been adjusted accordingly. Still one point deducted for the "tip", which is something people give to show their appreciation, no strings attached. A payment to unlock functionality in a paid App is NOT that...

So I thought I'd actually spend some money to get a really good ebook reader rather than a crippled "free" one and I ended up with this. It's late, I install a couple of books to read, want to tweak the color scheme a bit and instead am sent to a "tip jar" to PAY EXTRA to enable this AFTER I paid for what I thought was a full-priced app...

If you want more money, be honest and charge an extra buck upfront, but to play this ridiculous nickel & diming game in a paid "pro" app is frankly pathetic, whatever its other merits may be. I was going to give it 1 star for this behaviour but since it may turn out to have benefits over store apps (Kindle, Nook etc.) I'll raise it by 1...

At least anybody else who feels similarly about these practices deserves a heads-up before plunking down their money to support this.


Appstafarian Limited
86.4 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
You must be at least 17 years old to download this app.
Unrestricted Web Access
© 2013-2016 Appstafarian Limited
In-App Purchases
  1. Fabulous Tip $4.99
  2. Generous Tip $0.99
  3. Amazing Tip $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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