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Features, pricing and Editor Score side by side — to help you pick the right education & research tool in 2026.
Quick verdict
On our Editor Score, Consensus and Flexi land almost level. Pick Consensus if you want research search; choose Flexi for photo-based math problem solving. On pricing, each has a free or freemium plan, so cost isn't the deciding factor here.
| Rating | 4.4 / 5 | 4.5 / 5 |
| Pricing | Freemium | Free |
| Free tier | ||
| Best for | research search | photo-based math problem solving |
AInexfinder Editor Score — our editorial rating from features, value and pricing, blended with verified user reviews where a tool has them.
AI search engine for research papers
Free AI math and science tutor from CK-12
Choose Consensus if…
Choose Flexi if…
Your use case decides this one: Consensus leans into research search, while Flexi is built for photo-based math problem solving. Our Editor Score can't separate them (4.4 vs 4.5), so let pricing and feature fit break the tie. Both have a free or freemium tier, so spin up each and keep the one that clicks.
Flexi has the higher AInexfinder Editor Score (our editorial rating from features, value and pricing, blended with verified user reviews where a tool has them), but "better" depends on your needs — compare features, pricing and the pros & cons above to decide.
Consensus (freemium) is best for research search, while Flexi (free) is best for photo-based math problem solving. See the full feature and pricing comparison above.
Both have paid plans — pricing depends on your usage tier. Open each tool's review for current prices, and watch for free trials.
Consensus is usually the easier starting point thanks to a lower barrier to entry. Beginners should favour a free tier and a simple interface over raw power.
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Last updated June 2026. Comparisons are ranked by our Editor Score (features, value and pricing, blended with verified user reviews where a tool has them) — see our methodology.