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Want to Support DoppelTone?

DoppelTone is free for community use. All proceeds will go towards the continuation of DoppelTone community outreach projects, making improvements to the app, and keeping the app free of charge for all users. If you’d like to make a donation, please click on the PayPal link below, or feel free to contact us to discuss other ways of supporting the project at: doppeltone(at)gmail.com

Thank you for your support!