Read the documentation
The Multitac documentation covers calculation syntax, built-in functions, units, equations, dates, cards, TIQs, Memory, Insights, documents, and current limits.
Before reporting a calculation
- Copy the smallest TAC excerpt that reproduces the result.
- Include the displayed result or diagnostic.
- Say what you expected and why.
- Include your Multitac version, product, and system version.
Please remove private names, notes, or values before sharing a TAC excerpt.
Portable documents
Multitac opens Markdown, Calca, and Numi files as UTF-8 text. Rich cards, pins, stable line metadata, Memory preferences, and TIQ history are native .mtac features and are not embedded into portable formats.
Known boundaries
- Currency and cryptocurrency calculations are unsupported.
- Insights and model-driven TIQs require an available Apple on-device model.
- Memory Review proposes candidates only from TACs opened on the current device; pending candidates are not used until approved.
- Cross-device document transport depends on iCloud Drive and your Apple Account settings.
Report a problem
For an incorrect calculation, harmful AI suggestion, document-loss concern, privacy or security issue, accessibility barrier, or intellectual-property concern, include the app version and build, platform, a minimal redacted example, the result you expected, and what occurred. About in the app shows the version and build.
Share only the smallest excerpt needed to reproduce a problem. Do not send a complete private notebook when a redacted expression or screenshot is sufficient.
Contact
Email support@multitac.app. Do not attach a private notebook unless you have removed information you do not want to share.