KudoKids vs RULER / Mood Meter (Yale)
RULER is a school program kids see once a week in a classroom. KudoKids is what kids and parents do together at home every day — growing responsibility, emotional skills, creativity, and confidence in one safe place.
Growth areas covered
3/8
RULER / Mood Meter (Yale) covers 3 areas · KudoKids covers all 8
Price
Free tier; paid plans vary — see their site
KudoKids: Free to start; Premium $11.99/mo, $99.99/yr, or $249.99 lifetime
Public rating
★ 4.9 / 5
App Store · 29,768 reviews · as of September 2026
KudoKids is built for the whole child at home — parents can see their child's growth, kids engage through fun and play, and the app grows with them from ages 3 to 12. RULER teaches emotion vocabulary once a week at school; KudoKids builds habits across the whole child every single day at home.
Everything we found on RULER / Mood Meter (Yale)
Open any section below for the detail — pricing, real reviews, the eight growth areas, and our sources.
THE REAL DIFFERENCEWhat RULER / Mood Meter (Yale) does vs. what KudoKids does
What RULER / Mood Meter (Yale) does best
Yale name and peer-reviewed research give RULER unmatched credibility. The free How We Feel app earns parent trust by having zero ads and no paywalls. CASEL SELect designation is the gold standard in school SEL.
Where it stops short
Built for schools and teens, not young kids at home. No parent dashboard, no child accounts, no gamification — a 6-year-old cannot use it independently. The school program costs thousands of dollars and requires district buy-in. The consumer app is not designed for children under 13.
See our sourcesWhere KudoKids wins
KudoKids is built for the whole child at home — parents can see their child's growth, kids engage through fun and play, and the app grows with them from ages 3 to 12. RULER teaches emotion vocabulary once a week at school; KudoKids builds habits across the whole child every single day at home.
Parents who love what RULER does at school but want something their young child can actually use at home without a teacher guiding every session.
THE EIGHT WAYS KIDS GROWGrowth coverage, side by side
KudoKids — the whole child
RULER / Mood Meter (Yale) — focused on its lane
Coverage reflects each app's focus as of June 2026. ✓ = covered · ½ = partly · · = not a focus.
AT A GLANCEKudoKids vs RULER / Mood Meter (Yale), side by side
RULER / Mood Meter (Yale) details reflect public information as of June 2026 and may change — check their site for current plans.
WHAT PARENTS SAYWhat public reviews say about RULER / Mood Meter (Yale)
What people say about KudoKids
Recommended by child-development experts. Early families say it's become their kids' favorite.
Our summary of public reviews of RULER / Mood Meter (Yale) as of June 2026 — from app-store, Trustpilot, and editorial reviews, in our words unless quoted. We show the good and the bad.
Parents like
- Completely free with no ads or paywalls — widely praised for the nonprofit approach
- Broad, nuanced emotion vocabulary far beyond what other apps offer
- Helps users understand their emotional patterns over time
- Strongest academic credibility and evidence base in the SEL category
Common complaints
- No automatic data backup — users lose history if phone is lost or replaced
- No cross-device sync — data does not carry across multiple devices
- Abstract 2D grid is confusing for young children; designed for teens and adults
- Some emotion placements on the grid feel wrong and cannot be customized
“Students in grades 1 to 5 can develop social and emotional skills while they learn to analyze data through graphing using the Mood Meter.” — Edutopia
PRICINGRULER / Mood Meter (Yale) pricing vs KudoKids
KudoKids plans
| Explorer (Free) | $0 | 10 child profiles, unlimited routines & rewards, one themed world, wellness tools (meditation, affirmations, check-ins), stories, games, speech-sound and learn-to-read practice you switch on, the drawing & art studio, and the full parent dashboard — no credit card required. |
| Premium | $11.99/mo · $99.99/yr · $249.99 lifetime | Everything in Explorer, plus every themed world, the full companion roster with skins and customization, exclusive backgrounds and music, and KudoKids AI (the parent-only setup assistant — it drafts, you approve). |
RULER / Mood Meter (Yale) plans
| Plan | Price | What you get |
|---|---|---|
| How We Feel (consumer app) | $0/free | Full mood grid, emotion check-ins, journaling, regulation strategies, pattern reports, mini emotion course — no paywall, no ads, funded by donations |
| RULER School Subscription | $1000/yr per school | RULER Online platform access for school staff, virtual group coaching sessions, newsletters, support webinars, conference discounts |
| RULER Institute Training (initial onboarding) | $7500/one-time per cohort (3 participants) | In-person RULER training for 3 school staff at Yale; $9,000 for 4 participants |
RULER / Mood Meter (Yale) paid plan prices as of June 2026 — check their site for current plans.
One KudoKids subscription covers chores, routines, rewards, learning, and play — not just kids' wellness.
WHICH IS RIGHT FOR YOUWho should choose which
Choose KudoKids if…
- You want screen time your kids earn, not screen time that just keeps them busy.
- Your child is 3–12 and you want one app, not a pile of apps.
- You want to try it free before paying anything.
- An app that never shows ads in the app or sells child data matters to you.
Choose RULER / Mood Meter (Yale) if…
- Whole-school SEL program implementation: educator professional development, common emotional language across staff and students, improving school climate and student outcomes
- You want what RULER / Mood Meter (Yale) is best at: Yale name and peer-reviewed research give RULER unmatched credibility. The free How We Feel app earns parent trust by having zero ads and no paywalls. CASEL SELect designation is the gold standard in school SEL.
THE WHOLE-CHILD OPTIONWhat you get with KudoKids
One app for ages 3–12 where kids earn coins for chores and routines, then spend them on games, rewards, and the screen time you price — recommended by child-development experts.
- Responsibility and good habits
- Money sense — earn, save, and spend with virtual Kudo Coins
- Emotional skills — calm-down tools, mood check-ins
- Curiosity and learning through a growing library of games, plus practice saying sounds and learning to read
- Kindness and social skills
- Online safety built in
- Imagination across themed worlds, animated companions, and a full drawing studio
- Active, playful screen time — companion-led movement sessions and device time kids earn
See full plans on our pricing page, or compare more tools on our comparison hub.
We wrote this comparison about our own product, so judge the source too — who builds KudoKids and why.
OUR SOURCESWhere this RULER / Mood Meter (Yale) research comes from
Public reviews, official policies, and news coverage as of June 2026. Some details above (marked in our research as unconfirmed or disputed) may have changed — check RULER / Mood Meter (Yale)'s own site for the current word.
- YCEI About page — Yale School of Medicine
- YCEI Our History
- RULER program — Yale School of Medicine
- Mood Meter — HopeLab collaboration
- How We Feel app — Marc Brackett
- YCEI 2023-2024 Research Year in Review — Yale School of Medicine
- How We Feel — App Store
- How We Feel — Google Play
- How We Feel for Android — AppBrain
- How We Feel — Yale School of Medicine article
- Common Sense Media — The Mood Meter app review
- Common Sense Education — The Mood Meter teacher review
- Edutopia — Using the Mood Meter in Elementary Math
- Education Week — Emotional Intelligence for Principals (June 2025)
- New England Psychologist — Yale psychologists launch Mood Meter app
- Heart-Mind Online — Boost Emotional Intelligence with the Mood Meter
- RULER Approach official site
- RULER FAQ — How much does the RULER Institute cost?
- RULER Subscription page
- How We Feel — official site
- CASEL Program Guide — RULER Approach
- Mood Meter — App Store (original Yale app)
- HopeLab — Mood Meter case study
Questions parents ask
Is KudoKids a good alternative to RULER / Mood Meter (Yale)?
KudoKids is built for the whole child at home — parents can see their child's growth, kids engage through fun and play, and the app grows with them from ages 3 to 12. RULER teaches emotion vocabulary once a week at school; KudoKids builds habits across the whole child every single day at home. It is free to start and built for ages 3–12.
What does RULER / Mood Meter (Yale) do that KudoKids doesn't?
Yale name and peer-reviewed research give RULER unmatched credibility. The free How We Feel app earns parent trust by having zero ads and no paywalls. CASEL SELect designation is the gold standard in school SEL.
Should I use KudoKids or RULER / Mood Meter (Yale)?
Parents who love what RULER does at school but want something their young child can actually use at home without a teacher guiding every session.
What does KudoKids cost compared to RULER / Mood Meter (Yale)?
KudoKids is free to start; premium $11.99/mo, $99.99/yr, or $249.99 lifetime. RULER / Mood Meter (Yale): Free tier; paid plans vary — see their site (public pricing as of June 2026 — check their site for current plans).
Screen time your kids earn — beyond what RULER / Mood Meter (Yale) does
KudoKids is free to start, no credit card required. One app for ages 3–12 where chores and routines earn coins, and coins buy the games, rewards, and screen time you price.
No credit card required. Set up in five minutes.