Quarked! Mass Matters vs Owlet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quarked! Mass Matters
Engage in a physics-based adventure to discover particle mass by shooting them through the Higgs field. Then, explore underwater challenges involving density, time limits, and avoiding sea creatures.
- Particle mass determination
- Higgs field interaction
- Underwater density challenges
- Time-based gameplay
- Sea creature avoidance
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Shoot particles through the Higgs field and determine the mass of the particles. With three of these particles, we will then dive underwater to beat the clock, avoid sea creatures, and learn about density. From the Quarked! Adventures in the Subatomic Universe project: www.quarked.org
Owlet
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Owlet: Cube6 is an app that uses two Owlet CubeTower manipulatives. This app builds on the Cube3 app by enabling students to create six-digit numbers by stacking small cubes in the columns of two CubeTowers. Cube6 has three modes. Each corresponds to a different topic in place value: Thousands, Money, and Decimals. For each topic, there are five different activities. - Explore: Students place cubes in the CubeTowers to create numbers that are shown on the tablet. - Make: Students are prompted to make a target number by placing cubes in the CubeTowers. - Build: Students solve number puzzles. For example, students might be asked to build a number between 200,000 and 300,000 using 15 cubes. - Compare: Students create a number in the CubeTowers and then compare it to a number generated by the app. - Round: Students use the CubeTowers to round a number to a specified place.
Screenshots
Verdict
The clearest difference is update cadence: Owlet at every 5 months against Quarked! Mass Matters's every 49 months. Quarked! Mass Matters's advantage is iOS requirement (10.0 vs 12.0). 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. Neither carries in-app purchases, so what you see is what you pay.
Quarked! Mass Matters ships an update every 49 months, Owlet every 5 months. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.
| Parameter | Quarked! Mass Matters | Owlet |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 49 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPad, Mac |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 73 MB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | The University of Kansas | BirdBrain Technologies LLC |
In-app purchases
Quarked! Mass Matters
No in-app purchases
Owlet
No in-app purchases
Questions
Is Quarked! Mass Matters free?
Is Owlet free?
Do Quarked! Mass Matters or Owlet have ads?
Which is updated more often, Quarked! Mass Matters or Owlet?
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