MathZoo Junior vs LORE Crystal & Rock Identifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MathZoo Junior
Read full descriptionHide full description
MathZoo Junior - Where Kids Go Wild for Math! Is your child struggling with math? Or maybe they just need a reason to love it? MathZoo Junior turns everyday math practice into an exciting world adventure where kids explore Math, rescue animals, and level up their skills along the way. AN ADVENTURE ACROSS THREE CONTINENTS Each grade is a new expedition! Journey through Africa with zebras and giraffes, discover pandas and tigers across Asia, then explore Europe with rabbits, otters, and bears. Every level unlocked is a new animal friend earned. CURRICULUM-ALIGNED MATH FOR AGES 6–10 MathZoo Junior covers the full primary school math curriculum: • Addition & Subtraction • Multiplication & Division • Fractions • Word Problems Three difficulty levels per grade: Easy, Medium, and Hard, so every child is challenged at exactly the right pace. A LIVES SYSTEM THAT BUILDS RESILIENCE Children get second chances on wrong answers before losing a life just like their favourite games. This teaches kids to think carefully, stay calm under pressure, and keep trying. Lives restore automatically over time, encouraging healthy play habits. 6 LANGUAGES FULLY SUPPORTED Play in English, Dutch, German, Spanish, Bulgarian, or Russian switch anytime from the profile screen. Perfect for multilingual families and international classrooms. SAFE, AD-FREE & CHILD-FIRST • Zero advertisements • No links to external websites • No social media • No personal data collected from children • Fully COPPA-compliant Parents stay in control. Children stay safe. FREE TO PLAY (EXPERT UPGRADE AVAILABLE) The free version gives full access to all 3 grades, 9 difficulty levels, and 90 math questions - no credit card required. Unlock Expert Mode for a one-time fee (no subscription, ever) and get: • 450+ questions (5× more content) • access to Parent Analytics Dashboard • Adaptive learning that adjusts to your child • Full Global Leaderboard access • Unlimited Practice Math and Kid's Portfolio Analysis One payment. Lifetime access. Worth every cent. BUILT FOR PARENTS TOO Track your child's progress, see where they're excelling, and understand where they need more practice all from the Parent Analytics Dashboard (Expert). Progress syncs across devices via the cloud, so learning continues wherever you are. Download MathZoo Junior today the math adventure your child will actually ask to play.
LORE Crystal & Rock Identifier
Read full descriptionHide full description
LORE is a field guide to stones, crystals, and minerals — the natural history of what you find, and what people have believed about it. Know what you find. Discover what it means. IDENTIFY WHAT YOU'RE HOLDING Photograph a stone and LORE gives you the closest matches from its 78-entry guide, along with what it actually observed in your photograph: colour, transparency, surface. It does not pretend to certainty it doesn't have. Most minerals cannot be settled from a photograph alone — colour shifts with the light, and polishing removes the crystal form that would decide it. So when LORE is confident it names one stone, and when it isn't it gives you a ranked shortlist and a physical test that separates them. "Hold a thin edge up to the light. If it stays fully opaque, that supports red jasper. If it glows orange-red, it's more likely carnelian." That's what a field guide does. It's the part the app can be honest about. IDENTIFY BY FEATURES — WORKS OFFLINE No signal, or would rather not send a photo? Answer what you can see — colour, surface, how light behaves on it, optionally a scratch or streak test — and LORE narrows the guide from your own observations. It runs entirely on your phone, and it's free and unlimited. NATURAL HISTORY AND FOLKLORE, KEPT APART Every entry covers how a stone forms, where it's found, how to recognise it, and its hardness on the Mohs scale. Alongside that: what people have traditionally associated with it, recorded as history rather than as effect. Roman soldiers carried engraved tiger's eye. Lodestone made the compass. Hertfordshire puddingstone was set into church walls against witchcraft. Where a stone has little folklore, LORE says so instead of inventing some. BUILD YOUR COLLECTION Save what you find. Your own photographs, not stock imagery — your collection is a record of your specimens, alongside a guide of 78 to discover. Got one wrong? Change the identification any time. Your photograph is kept. PRIVACY Your collection, notes, and settings never leave your phone. A photograph you submit for identification does: it's resized on your device — which strips the location and camera data — sent over an encrypted connection, identified, and not stored by anyone. Identify by Features sends nothing at all. Anonymous analytics can be switched off in Preferences. They never include your photographs, your collection, or anything that identifies you. LORE+ Three identifications are free. LORE+ makes them unlimited. Everything else is free forever: the full guide, Explore, Stone of the Day, your collection, and Identify by Features. An identification only counts when LORE actually names a stone. If it can't, that one is on us. LORE is a field guide, not an appraisal. For valuation, or where safety matters, consult a gemologist or a local geological society. Symbolic and traditional associations are presented for educational and cultural interest. They are not scientifically established and are not health advice.
Screenshots
Verdict
The clearest difference is update cadence: MathZoo Junior at weekly against LORE Crystal & Rock Identifier's monthly. 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. MathZoo Junior sells 1 one-off in-app purchase and LORE Crystal & Rock Identifier sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
MathZoo Junior ships an update weekly, LORE Crystal & Rock Identifier monthly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.
| Parameter | MathZoo Junior | LORE Crystal & Rock Identifier |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 18.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Fusion Atelier B.V. | ELU Labs, LLC |
In-app purchases
MathZoo Junior
- MathZoo Expert - Lifetime Access$3.99
LORE Crystal & Rock Identifier
- LORE+ Unlimited$9.99
Questions
Is MathZoo Junior free?
Is LORE Crystal & Rock Identifier free?
Do MathZoo Junior or LORE Crystal & Rock Identifier have ads?
Which is updated more often, MathZoo Junior or LORE Crystal & Rock Identifier?
Other comparisons















