Support
Need help with Signopedia? Write to support@d4u.store. Telling us your phone model and the app version helps us answer sooner. For anything else, the general contact is signopedia@d4u.store.
Signopedia works offline and has no accounts: there is no login to recover and nothing stored on our servers to reset. Everything lives on your phone.
Frequently asked questions
Is it free?
Downloading the app is free, and so are several of its packages; others are paid. The catalog shows which packages are free and the price of the others before you add them.
Does it work without internet?
Yes. The packages come inside the app: once added, they work without a connection. You only need a connection to buy or restore a paid package and to open the links to the sources.
What data does the app keep?
Only on your phone: the packages you added, your favorites and your progress in the game. There are no accounts, no ads and no tracking tools, the app does not use your location and it sends nothing on its own. It only uses the phone’s light if you turn it on in the Morse translator.
Is it an official source?
No. Signopedia is an educational app: it explains signs from the official standards and cites the source of every package, but it does not represent any entity or replace the standard in force. If in doubt, check the official source linked in the package credits.
How is the challenge unlocked?
By training. Each correct answer adds a point to that sign and each mistake takes one away; with 3 points the sign is marked as learned. When you have learned 80% of the signs in a package, its challenge is unlocked. Each package’s dashboard shows your progress.
Why isn’t my country here?
We only publish signs whose official source allows us to use them and that pass our review. We keep adding packages; new ones will appear in the catalog.
How do I remove a package?
In Packages, swipe its row to the left and tap Remove. Only free packages can be removed, and your progress in the game is kept.
How do I restore a purchase?
In Settings › Restore purchases. Purchases are kept in your store account (App Store or Google Play), so they come back on another phone or after reinstalling the app. Free packages are added again from the catalog. Your progress in the game is kept only on your phone: if you uninstall the app, it is lost.
How do I erase my progress?
In Settings › Erase progress, choose what to erase: statistics, learned signs, trainings, challenges, favorites or everything. At the top, choose which packages: all, one or several. It cannot be undone.