3D Magic Ruler vs Little Why?
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Magic Ruler
Engage in a magical puzzle experience with this application. It offers an entertaining and captivating way to interact with puzzles, making them more enjoyable.
- 3D magic puzzle gameplay
- Enhanced puzzle fun
- Interactive puzzle experience
- Educational entertainment
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3D Magic Puzzle, make the magic puzzle more fun and more interesting
Little Why?
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“Why is the sky blue?” “Where does rain come from?” The questions never stop - and now you’ll always have a calm, clear answer. Little Why? is a gentle companion for parents of curious kids aged 3–12. Ask any question your child dreams up and get a warm, age-appropriate answer you can share together - plus a surprising fun fact and whole worlds to explore. Every answer is: Made for their age - the same question, explained just right for a 4-year-old or a 10-year-old, so it actually lands. Safe and kind - designed to be gentle, appropriate, and suitable for young minds. Full of wonder - every answer comes with a surprising fun fact that keeps the curiosity going. Little ideas, big moments Get simple activity ideas tailored to what your child is curious about right now - turning a quick question into an afternoon of discovery. Little Why? isn’t about handing your child a screen. It’s about turning “why?” - the question that used to stump you at bedtime - into your favorite moment of the day. Little Why? - Time together. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Little Why? at every 3 weeks against 3D Magic Ruler's every 2 months. 3D Magic Ruler's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 3D Magic Ruler sells 6 one-off in-app purchases and Little Why? sells 2 in-app purchases, starting at $1.49 per 7 days. Whichever you choose, the download price is not the number that matters.
3D Magic Ruler ships an update every 2 months, Little Why? every 3 weeks. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.
| Parameter | 3D Magic Ruler | Little Why? |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (7 ratings) — better | — |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 79 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | 广东群宇互动科技有限公司 | Iana Lando |
In-app purchases
3D Magic Ruler
- 500beans$0.99
- 1000beans$1.99
- 1500beans$2.99
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- 2500beans$4.99
- 5000beans$9.99
- 25000beans$49.99
Little Why?
- Weekly$1.497 Days
- Yearly$24.991 Year
Questions
Is 3D Magic Ruler free?
Is Little Why? free?
Do 3D Magic Ruler or Little Why? have ads?
Which is updated more often, 3D Magic Ruler or Little Why??
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