Most translations of the bible have a copyright holder. We have to get their permission before we can use their bible texts. That said, please leave us a message which language you would like to find here.
I was not aware of any which easily allows to switch between translations, books and chapters, if offline-capable, ad-free, without cost, user tracking or advertisements.
Definitely, you can help in making this project known, contacting bible copyright holders to get their permissions (especially if you speak a foreign language), translate the app into more languages, translate this website into more languages, create a professional logo, refine the app and this webpage (let us also know if you have ideas).
Not yet, but this is on our to-do-list. Drop us a note if you are interested, this will increase the priority. Update: We have started with open sourcing on GitLab.
For the moment just write an email to info at duobiblo dot com.
We work on other projects, this one is volunteers work.
There is a known problem whit old ressources when we update the app, which currently happens several times a day. When you see this please close the application completely and restart it when you are online. Also the application needs modern browsers to run correctly, you might need to update yours.
The founder of the project was studying Portuguese on Duolingo. As he was reading the bible every day at one point in time he was looking for the possiblity to read the bible in two langugaes side-by-side.
We want to know how the application is used, what works well and what not. We are not interested in personal data, we will not store or sell them. FullStory, one of our trackers allows us to discard user IP addresses, so we discard them.