You can purchase the DroidCam OBS app directly, for use on Android phones without the Play Store and GMS. Android 6.0 or above is required.

• The app license will be tied to an email account which must be present on the phone (phone Settings > Accounts).
  You will be prompted to pick the account to activate the app, so please make sure to specify the correct email address when making the purchase. This can be any email (POP3/IMAP/..).
• Payment is automatically processed by Stripe, which is similar to PayPal. Some country-specific payment options are also supported, eg. Giropay (DE), AliPay (CN). It is recommended you turn off VPNs to get the correct purchase options for you country.
• You can download and install the app APK package immediately after purchase.
• Contact support@dev47apps.com if you have any questions or experience any issues.