First of all try to use swatches from "Skin Tones" group.
To do it open Colors panel, tap "swatches" icon in the bottom bar, then scroll to "Skin Tones" and tap group title (Skin Tones) or pick any swatch from this group

We are updating Mac version together with iOS version, we add each feature (except of UI changes) in both iOS and Mac version.

I think it is not needed because if you create a new layer it will copy Pigment button state from the active layer

Could you export your Preferences using Artstudio > Preferences > ... > Export and send me them to [email protected]

Please also tell me which brush were you using when it happened?

??

Version 5.1.3 is available. App now saves Full Version state in its own cache and uses it when offline. It stores cached state for two weeks.

No, i really updated the bug, not changed the "offline" window. Unfortunately the source code from Apple that shows how to manage iap has this bug so i think many apps has similar problem.

I think I know how to solve this issue, so please just give us one more chance - it will be done in version 5.1.3.

To refund - you have to contact apple, app/developers don't have any access to user account.

From previous posts I've already mentioned that I just recently purchased the iPad from Apple new. It's fully updated and yours is the only app I've purchased. I think it's clear at this point that as some kind of security measure your software is requiring an active internet connection in order to verify valididity of an existing license. I think what you're alluding to is that this is somehow common practice amongst IOS apps and that you didn't so much "fix a bug" as merely extended the window between authentication checks.

Like I mentioned before, I have no use for software I can't use offline indefinitely. To me, this is a digital canvas. This iPad has no need to be online to serve that function. It could go weeks or even potentially months without an active internet connection because I have other devices that fulfill that requirement. At this point it's fairly clear the licensing issue is a "feature", not a bug. To resolve this, I would appreciate a refund as I purchased your software in good faith and nowhere is it mentioned an active internet connection will be required for continued authentication of ownership. Had it been so, I certainly wouldn't have bought it. I would like to be done with this entirely. Please issue my refund. As a credit to the Apple app store, you should have my email address on file abbas is the same one associated to my account there. In the meantime I will uninstall your software.