تحديث في 08/11/2026
New: Lifetime Pro. Pay once and keep Pro for good, with no subscription. Monthly and yearly plans are still available.
Fixes:
• Cancelling a purchase no longer shows an error.
• If you already own Lifetime Pro (after reinstalling, for example), choosing it again restores it instead of failing.
• The experimental GPU renderer now draws every surface in a family, like z = x² + {0, 2}.
• Feature requests: votes count straight away, even offline.
