math.now vs Rubii

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

math.now compared with Rubii
Detail	math.now	Rubii
What it does	Free AI-powered math solver with step-by-step solutions	Free AI character chat, roleplay and interactive stories
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Not given	Freemium
Pricing	Free plan: $0 per month with 5 credits per day and basic model access. Pro plan: $6.9 per month (or save 30% on annual billing) with 3000 credits per month (100 credits per day), advanced step-by-step AI homework help, 24/7 AI tutor support, AI chat with web access, priority response times, advanced	Free plan available. Plus: $7.99/month (800 Rubies, about 1,600 messages and 400 images). Pro: $14.99/month (3,000 Rubies, about 6,000 messages and 1,500 images). Premium: $29.99/month (6,600 Rubies, about 13,000 messages and 3,300 images).
Key features	Upload photos of math problems with OCR technology Step-by-step solution explanations Real-time assistance with math AI bot Support for multiple math topics Personalized learning adapted to skill level Interactive practice problems Voice input support Text input for math problems Access to advanced AI models Web access for AI chat	Long character memory that persists across conversations Character creation with detailed settings Browse community-created characters Cross-platform access on web and mobile Memory editing and boost features with Rubii+
What makes it different	Powered by GPT-4o for accurate mathematical solutions Upload math problems from photos using OCR technology Completely free to use with no login required Personalized learning experience adapted to skill level 24/7 AI tutor support in premium plan	Long-form story-driven chat built for novel-length conversations, not one-line replies Persistent character memory that recalls details across weeks of chats Complete creator toolkit combining character design, image generation and video in one workflow Multiple AI model options for different writing styles Active community where creators can share and earn
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	22 −1 (down) since last check	39 +1 (up) since last check
Trust Flow (Majestic)	11	27
Citation Flow (Majestic)	32	32
Referring domains (Majestic)	174	293

4 details filled in for both companies.

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