Customer support
Sigmalert builds mobile apps including SigmaCal. If you have questions, need help with an app, or want to report an issue, our team is here to assist.
Contact us
The fastest way to reach Sigmalert is by email. We aim to respond to legitimate support requests as soon as possible during business days.
[email protected]Send an email
SigmaCal product help
For waitlist signup, product updates, and pre-launch information about SigmaCal, visit the public product site:
Privacy policy and terms for SigmaCal are published at sigmacal.com/legal/privacy and sigmacal.com/legal/terms.
Subscriptions & billing
In-app purchases and subscriptions are processed by the Apple App Store or Google Play Store. For refunds, subscription management, or billing disputes, use the store’s standard support flows or include your store receipt when emailing us so we can help route your request.
- Apple: Report a Problem or App Store account subscriptions
- Google Play: Play Store order history and refund options
What to include
When you write in, please include:
- App name (e.g. SigmaCal)
- Device model and OS version
- A short description of the issue
- Screenshots if relevant