States of Matter by Tinybop
Children select materials, raise or lower temperature, and observe changes such as freezing soda, melting gold, or liquefying gases; the store description says they can inspect molecular movement, reversibility, container shape, and melting/freezing points. The product is intentionally open-ended rather than level-based. Common Sense Media independently describes its curiosity-led model as engaging but potentially…
- Route
- Explore
- Ages
- 4+
- Best for
- Experimenting with how temperature changes solids, liquids, and gases
At a glance
- Developer
- Tinybop Inc.
- Platforms
- iOS
- Cost
- Paid
- US App Store
$2.99 US iOS; no third-party ads claimed; in-app purchases not displayed in captured store metadata
The short version
The paid app offers an unusually direct interactive model of phase change: children manipulate temperature and see objects and molecules respond. It has a strong inquiry-led concept, no ads/IAP claimed, and current Apple availability, but the latest recorded iOS update is 2022 and the very small rating sample makes current-device testing essential.
Creative agency: High — the primary loop is changing variables, observing results, and making guesses rather than completing prescribed levels. Learning value: High — state/phase-change concepts are directly represented through interactive experimentation. Age fit: Good for 6–9 with adult conversation; early readers may benefit from the handbook or adult-led vocabulary. Parent view: One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration. No account, camera, microphone, external-link, or social flow has been confirmed in use. Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding. Learning value: High — state/phase-change concepts are directly represented through interactive experimentation. Age fit: Good for 6–9 with adult conversation; early readers may benefit from the handbook or adult-led vocabulary. Parent view: One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration. No account, camera, microphone, external-link, or social flow has been confirmed in use. Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding. Age fit: Good for 6–9 with adult conversation; early readers may benefit from the handbook or adult-led vocabulary. Parent view: One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration. No account, camera, microphone, external-link, or social flow has been confirmed in use. Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding.
What we found
Strengths
- Creative agency: High — the primary loop is changing variables, observing results, and making guesses rather than completing prescribed levels. Learning value: High — state/phase-change concepts are directly represented through interactive experimentation. Age fit: Good for 6–9 with adult conversation; early readers may benefit from the handbook or adult-led vocabulary. Parent view: One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration. No account, camera, microphone, external-link, or social flow has been confirmed in use. Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding.
- Learning value: High — state/phase-change concepts are directly represented through interactive experimentation. Age fit: Good for 6–9 with adult conversation; early readers may benefit from the handbook or adult-led vocabulary. Parent view: One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration. No account, camera, microphone, external-link, or social flow has been confirmed in use. Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding.
- Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding.
Watch-outs
- It has a strong inquiry-led concept, no ads/IAP claimed, and current Apple availability, but the latest recorded iOS update is 2022 and the very small rating sample makes current-device testing essential.
- Parent view: One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration. No account, camera, microphone, external-link, or social flow has been confirmed in use. Staying power: Medium — diverse materials and temperature experiments offer repeat discovery, though open play may need adult prompts and the product’s update cadence is a concern. This is a , not a hands-on finding.
- The Apple privacy label and developer privacy claims are not an independent audit, and possible device-permission behavior remains untested.
Before you download
- Age guidance
- 6–9; Apple labels it 4+ and “Made for Ages 6–8.”. Adult involvement: Low–Medium; children can explore freely, while adults can use the handbook’s prompts to connect play to vocabulary and real-world examples.
- Privacy
- One-time purchase and no ads/IAP claimed; unlinked analytics/diagnostics remain a privacy consideration.