Get in touch
Contact
Suggestions, bugs, partnerships or just want to say hi — every message is read personally by Renato Freitas, the developer of CalcSim AI.
General email
admin@rbfsoftware.com.br
For suggestions, questions, partnerships and any other subject.
Report a bug
admin@rbfsoftware.com.br
Found an error in the app or portal? Describe what happened and on which screen.
Rate on Play Store
Google Play · Android
Your review helps other users find the app and motivates us to keep improving.
Who responds
Renato Freitas
Founder & developer
CalcSim AI is an independent project developed and maintained by me. Every message received is read and, whenever possible, replied to. There is no support team — it is just me, so I respond with best effort within my available time.
Average response time: 1–3 business days.
This site does not use forms that collect personal data beyond what is necessary for contact. For more details, see our privacy policy.