Castiel pricing
3 plans read from castiel.dmkilab.com
Free tierFree No time limit for Simple and School; advanced modes limited to about 30 minutes per session.Simple and School · paper tape · advanced modes about 30 minutes/session Read 14 Nov 2026 · castiel.dmkilab.com
LinuxFree Free in full; no session timer.Linux · every mode · Debian, Flatpak, AppImage, tarball Read 14 Nov 2026 · castiel.dmkilab.com
Windows full version$2, paid once One-time purchase; removes the session limit on advanced modes.Windows · all modes · editable tape Read 14 Nov 2026 · castiel.dmkilab.com
In short
- Castiel has a free plan (Free tier).
- A free trial is offered.
- Paid plans published: 1.
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| GeoGebra | — | Yes | No |
| Avidemux | — | Yes | No |
| Calcrivo Scientific Calculator | — | Yes | No |
| AlexCalc | — | Yes | No |
| Alcula Scientific Calculator | — | Yes | No |
| CalcTastic | — | Yes | No |
| Ans Scientific Calculator | — | No | No |
| Desmos Scientific Calculator | — | Yes | No |