RSM vs Kumon vs Kidscient
Three different ways to get a child ahead in math. A fair, sourced comparison of what each one is, what it costs, and who it suits.
Side by side
| RSM | Kumon | Kidscient | |
|---|---|---|---|
| What it is | Weekly small-group math class with homework | Self-paced worksheets, center visits about twice a week | Daily AI math coach and homework helper at home |
| Teaching style | Teacher-led, conceptual, problem solving | Independent practice to mastery; instructor grades | Curio explains on a whiteboard, asks, hints, listens |
| Grouping | By grade, with placement | By level | By level |
| Price, one child | About $228 to $444/month by grade; about $272 for grades 2 to 6 online (Brighterly, RSM cost) | About $130 to $220 per subject/month (ThePricer, Kumon cost) | $29.99/month or $249.99/year, whole family |
| Second child | Billed separately | Billed separately | Included |
| Schedule | Fixed weekly class time | Center hours plus daily sheets | Any time |
| Homework help for school | No (RSM sets its own homework) | No | Yes, every subject, without giving answers |
| Human teacher and classmates | Yes | Instructor, no class | No |
| Ages | K to 12 | Pre-K to 12 | 5 to 13 (K to 8) |
RSM: strengths and trade-offs
Strengths. A deep, demanding curriculum taught by a teacher with classmates. Strong on problem solving and competition math. Over 30,000 students across dozens of branches (Harvard Graduate School of Education).
Trade-offs parents mention. A lot of homework and a high pace for some children; others say their child managed it alone and stayed for years (Berkeley Parents Network, RSM). Fixed class times, driving for in-person branches, and a price that grows with grade. Harvard's Jon Star notes children taught well ahead can become bored in school math (Harvard Graduate School of Education).
Kumon: strengths and trade-offs
Strengths. A daily habit, mastery before moving on, and self-pacing by level. Running since 1958 with close to 1,900 US locations (Kim, Goodman and West, IZA Discussion Paper 17178 (2024)).
Trade-offs parents mention. Repetitive worksheets, little explanation of why, per-subject pricing, and notice periods to cancel (MyEngineeringBuddy, Kumon review).
Kidscient: strengths and trade-offs
Strengths. Daily teaching at home with explanation, at your child's level; homework help in every subject and reading homework help; one price for the whole family; a note for parents after every session. Curio gives hints, not answers, and code checks the math.
Trade-offs. No human teacher and no classmates. It's new: the founding beta starts 2 November 2026, and guided math lessons open level by level. It needs a screen. If your child needs a person to stay motivated, or is preparing for advanced competitions, RSM or a tutor may suit them better.
Which one fits your child?
Choose RSM if
your child loves a challenge and classmates, you can fit a weekly class, and competition math matters to you.
Choose Kumon if
your child needs fluency and a calm routine on paper, and the center is close.
Choose Kidscient if
you want daily teaching and homework help at home, for every child in the family, without the drive or a per-child bill. Or use it alongside RSM or Kumon.
Questions parents ask
What is the difference between RSM and Kumon?
Which is better, RSM or Kumon?
How much do RSM and Kumon cost?
Can Kidscient replace RSM?
Sources
- Brighterly, RSM cost
- Harvard Graduate School of Education
- Berkeley Parents Network, RSM
- ThePricer, Kumon cost
- MyEngineeringBuddy, Kumon review
- Kim, Goodman and West, IZA Discussion Paper 17178 (2024)
Prices checked October 2026. Center prices vary by location; ask your local center for a quote. Kumon is a trademark of Kumon Institute of Education. Russian School of Mathematics and RSM are trademarks of their owner. Kidscient is not affiliated with either.
Join the founding families
Kidscient opens to invited families on 2 November 2026. Founding families pay $19.99 a month or $169.99 a year for the Family plan, locked for 12 months.