#science 2
2 services tagged "science" — each with a free tier or trial. Limits and card requirements are in the cards.
- Khan Academy Математика и науки · без лимитов · бессрочно
- arXiv Препринты науки · без лимитов · бессрочно
See also
free-tier.hub · snapshot 2026-11-05 · limits change — check the provider's official page