The supported version is always the currently available App Store version, currently being 2.0.0.

Make sure to read the Terms of Service of Bubble+ before buying the said product. Read it here:
apps.lumaa.fr/legal/bubble/tos (PDF Version)

The ToS applies for all versions after 1.4.1, and only applies to Bubble+ and NOT the app in itself.

To report a vulnerability, open an issue, send an email to lumaa@lumaa.fr, send a private message on Mastodon or on Discord in the #app-feedback channel.

Explain clearly the vulnerability and how to reproduce the vulnerability, by providing a step-by-step guide. If it is not correctly explained or cannot be reproduced, your issue will be dismissed as "cannot reproduce".