May I recommend OSS Document Scanner + Syncthing? Both apps are FOSS and it looks to me like that they might be able to replace what Microsoft Lens does for you with the advantage that you are free of Microsoft software.

Glad that it worked out in the end. It’s a pity that different Android versions and custom ROMs have this setting in different places, I guess this is also making it impossible for the developer to put a direct link to this setting in Heliboard that would work for all users.

Found the solution to this some days ago: you need to change your System Spell checker to Heliboard.

Now the developer added it to the FAQ too:

Spell checker is not checking all languages in multilingual typing: Make sure you actually enabled HeliBoard spell checker. Usually it can be found in System Settings -> System -> Languages -> Advanced -> Spell Checker, but this may depend on Android version.

Hi sorry for the late reply. I’m not an expert here but I think I can help you with a couple of things:

I installed HeliBoard_1.2-release.apk

Then you’re fine. That’s the app intended for release. I assume you got the APK from the developers GitHub? I use F-Droid so there’s only option available.

It’s giving me suggestions, but no corrections

You could download that dictionary file that you linked, but I believe that is not necessary if your Android System language is set to English and you’re typing in English too, it should be able to use the System internal dictionary. In my case I have 4 different languages configured in Heliboard and I downloaded dictionaries 3 of them, but I didn’t need to download the one for my system language, it just uses the internal dictionary. For the other 3 languages: I downloaded their dictionary files, saved them in a safe location in my phone (I have a folder for apps Settings and backups, and I created a Heliboard subfolder where I keep my dictionaries and the glide typing library)

Regarding my old issue with changing languages and having the spell check change at the same time: I fixed that by changing the Spell checker app in Android’s System Settings. I found out about this reading a related GitHub issue and I suggested to the developer to add this information to the FAQs, which they quickly did (check the section “Spell checker is not checking all languages in multilingual typing”). You can also activate the Globe icon to Switch languages under Heliboard’s Settings: “Preferences/Additional Keys/Language Switch keys”, but I personally prefer being rid of it and just sliding on the spacebar

Than you very much! I’ve been using this app for moths and I didn’t know this. Cool feature.

I have the same problem. Before the official release as Heliboard, when it still was called OpenBoard (by Helium314), I could change the keyboard languages with the small keyboard icon on the bottom right of my screen and it would change the language AND there spelling dictionary, but by swiping up from the spacebar only the language would change, with the spelling dictionary still on the first language.

Now on Heliboard I don’t even have that possibility, since the small keyboard icon on the bottom right only shows one entry for Heliboard, not several (one for each language) as it used to be before.