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Best free AI math help for elementary kids

Reviewed 2026-10-15 from the same public pages as the directory. If a tool page says a price or a privacy claim is unverified, this guide does not fill it in.

A search for free AI math help turns up two different kinds of products. One is a chatbot or a camera. The other is a lesson or a game that happens to be free. In this directory, the free products that clearly fit elementary school are mostly the second kind.

Khanmigo is the AI tutor built to ask questions instead of handing over the answer. Khan Academy lists the parent plan at $4 a month or $44 a year. It is not free. The regular Khan Academy library underneath it is free, and that library is lessons and practice, not the chatbot.

The free AI tutor is not confirmed for elementary

CK-12 Flexi is a free AI tutor for math and science. CK-12 says the site, including its AI tools, is free, and the Play listing says there are no ads and no in-app purchases. The student-tutor page we read called out math grades 6, 7, and 8. Younger than 6th grade was not established, and the app listing also mentions high school and college. Treat Flexi as a middle-school option until a public page says otherwise. It can also photograph a problem and return a solution, so it is labeled mixed, not “teaches only.”

Free math that teaches, and is not a chatbot

These are the free elementary fits we could verify. None of them is a chat tutor.

  • Khan Academy lessons, videos, and exercises are free for K–8. The youngest kids are often better served by the separate kids app below.
  • Khan Academy Kids is free for ages 2–8, with no ads and no subscriptions on the store listings we read. It includes early math. It is not Khanmigo.
  • Zearn is free K–8 digital lessons from a nonprofit: short videos, models, and problems with feedback. A free individual account includes the math materials. It is a lesson, not an answer lookup. A parent-facing COPPA statement was not on the account pages we read.
  • Boddle keeps the K–6 math questions free. Premium ($9.99 a month or $69.99 a year) adds rewards. The “AI” line on Boddle’s subscription page describes adaptive practice. We did not find a chat tutor.
  • Prodigy says the math curriculum for grades 1–8 is free. Memberships are optional. Kindergarten is not clearly covered. It is a game of questions, not a photo solver.

Free tools that still give the answer

Photomath’s core solver is free. It scans a problem, including elementary arithmetic, and shows the solution with steps. That is why it can show up for young grades, and also why it is a rough fit if the goal is learning. Plus prices in dollars were not on the help page we read.

Google Lens homework help, which is what the old Socratic address now describes, does not list a price. It is not listed for kindergarten through 2nd grade, and it is not a kids’ tutor. It can point at an explanation or be used to grab a solution.

Paid AI tutors, so you can tell them apart

Synthesis Tutor is an AI math tutor for ages 5–11 and grades K–5. It is paid, with a 7-day trial. The App Store and the marketing site have shown different prices at the same time, so this directory does not pick one. Khanmigo covers elementary in Khan Academy’s own description, but a minimum grade inside elementary school was not stated, and a child under 18 needs a parent on the account.

Start with grades K–2 or grades 3–5, filter to Math and Free, and open the tool page before you install anything. The teaches versus gives answers guide is the next stop if a camera app is already on the phone.