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Lumi Math Planet Review — Is This the Best Kids Math App for iPhone?
★★★★½ 4.7/5
Lumi Math Planet takes a sandbox approach to early arithmetic. Children build their own planet while practising addition, subtraction, multiplication and division through games. It works offline and uses a one-time purchase rather than a subscription.
Pros
- Sandbox planet-building mechanic keeps children motivated to keep practising
- Covers addition, subtraction, multiplication and division in age-appropriate stages
- One-time purchase — no subscription required
- Fully offline — no internet needed during play
- Friendly Lumi character design consistent across the app series
Cons
- English and Traditional Chinese interfaces only (Japanese/Korean not yet available)
- No adaptive difficulty based on individual child progress (uses fixed stage progression)
Who is it for?
Children aged 5–8 working on core arithmetic skills. Parents who prefer a one-time purchase over recurring subscription math apps.
Who is it NOT for?
Children already comfortable with multi-digit arithmetic or word problems.
Download Lumi Math Planet on the App Store →
Frequently asked questions
What math topics does Lumi Math Planet cover?
Addition, subtraction, multiplication and division — introduced progressively across different planet stages.
How is Lumi Math Planet different from subscription math apps?
Lumi Math Planet is a one-time purchase. You pay once and own the full content permanently, with no monthly fees.
Is Lumi Math Planet suitable for kindergarten children?
Yes. The early stages start with simple counting and single-digit addition, which is appropriate for kindergarten (age 5–6).
Does the app track my child's progress?
Yes. Planet-building progress is saved locally so children can continue where they left off each session.
This review is written by the developer of the app. We aim for honest, balanced coverage.