mozaik3D vs HMH Science Dimensions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mozaik3D
This app makes learning engaging with over 1300 interactive 3D scenes covering history, science, math, and more. It offers digital lessons, quizzes, and narration to enhance understanding. Explore worlds in walk or VR mode, and practice languages with multi-language support.
- 1300+ interactive 3D scenes
- Digital lessons, images, videos, audio
- Quizzes and activities
- Narrations and animations
- Walk mode & VR mode
- Multi-language support
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Let’s make learning fun! mozaik3D brings learning to life with interactive 3D models and a wide variety of digital resources. Perfect for students, teachers, and anyone curious about the world! - Explore 1300+ interactive 3D scenes across history, science, technology, mathematics, arts and more. - Digital lessons, images, videos, audio, and tools — everything you need for a richer learning experience. - Quizzes and activities to test knowledge in a fun way. - Narrations and animations to guide you through complex topics. - Walk mode & VR mode — step inside ancient cities, explore the human body, or travel to outer space. mozaik3D is available in over 40 languages, making it a perfect companion for both learning and practicing foreign languages. Try the app for free: explore demo scenes without registration, or create a free account and unlock 5 educational 3D scenes every week. Turn learning into an adventure — anytime, anywhere!
HMH Science Dimensions
This augmented reality app transforms book covers into interactive science experiments. Students can scan their textbooks to launch 3D models and explore concepts like weather, solar energy, and the solar system. It's designed to make learning engaging and fun for young students.
- Augmented reality science experiments
- Scan book covers to activate content
- Interactive 3D models
- Explores various science topics
- Engaging learning experience
- Group or pair work friendly
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HMH Science Dimensions AR! (In order to access this app’s content, you will need any Student Edition book cover from HMH’s California Science Dimensions AR program). HMH Science Dimensions AR is an augmented reality tool that turns your students’ book cover into a fun, unique learning experience. To play, open the app and scan the Student Activity Book cover from any grade using a smartphone or tablet. Then watch an augmented reality experiment pop right out of it! HMH Science Dimensions AR gets students out of their seats and thinking about the science they’ll be learning in the coming year. It can also serve as a short, fun homework activity. For target images please go to: https://prod-hmhco-vmg-craftcms-private.s3.amazonaws.com/documents/CA_SD_AR_Covers.pdf Experiments and investigations include… Weather Materials Solar Energy Food Chains Biological Systems Photosynthesis The Solar System Sound Waves How Crystals Form Tips Move your device around the cover and even move the cover itself to get the full experience. The experiments lend themselves well to students working in small groups or pairs. App Info This app does not collect any personally identifiable information. This app contains no social media sharing or links to websites. This app does not track the user’s location. For users age 6 or younger, we recommend child-safe device covers. Avoid pressing buttons or controls outside the main screen area when holding the device as doing so may minimize or close the game.
Screenshots
Verdict
The clearest difference is rating: mozaik3D at 4.2 against HMH Science Dimensions's 2.4. mozaik3D also leads on review sentiment (58% vs 25%) and ratings volume (141 vs 16). HMH Science Dimensions's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 15.0). On price, update cadence, ads 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. mozaik3D sells 2 one-off in-app purchases. HMH Science Dimensions asks for nothing beyond the download.
mozaik3D holds the better App Store score, 4.2 against 2.4. That said, the two scores are not equally well evidenced: mozaik3D has 141 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 58% of mozaik3D's written reviews are positive against 25% of HMH Science Dimensions's.
mozaik3D ships an update every 5 weeks, HMH Science Dimensions every 2 months. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.
| Parameter | mozaik3D | HMH Science Dimensions |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (141 ratings) — better | 2.4 (16 ratings) |
| Positive reviews | 58.3% of reviews — better | 25.0% of reviews |
| Number of ratings | 141 — better | 16 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 447 MB | 227 MB |
| Age rating | 4+ | 4+ |
| Developer | MOZAIK Education Ltd. | Houghton Mifflin Harcourt |
Customer experience
mozaik3D
HMH Science Dimensions
Bugs and requests
mozaik3D
Reported bugs
56 issues- Login fails, password incorrect
- Cannot register, country/data not accepted
- Account not working after registration
- Adrenaline (advanced) scene shows error
- Audio cuts off in Human body (male) scene
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- Opening a book freezes the app
- App says internet connection needed when WiFi is on
- Overlay menu hides 3D animation on iPad
- No sound in animations
- Cannot register on iPhone browser (Safari/Chrome)
- App crashes constantly after update
- App doesn't load
- App doesn't open, internet access issues reported
- Cannot open some 3D scenes or books
- Cannot download videos, most are not free
- Cannot create a new account
- VR headset for phone doesn't work correctly
- Cannot open desired content
- Google and Facebook registration/login fails
- Favorite animation not added to collection
- Cannot make premium account
- VR headset for phone doesn't work correctly
- Cannot open desired content
- Google and Facebook registration/login fails
- Favorite animation not added to collection
- Cannot make premium account
- Cannot zoom
- App doesn't support iPhone 5s, loads forever
- Login cursor jumps to password field
- Constant switching between portrait and landscape
- Loaded 3D animations not opening in app on iPadOS 13
- Error when opening app, cloud symbol loads and errors
- App crashes continuously on iPad 2018
- App crashes on iPad Air 2nd generation
- App freezes on iPhone XR
- App logs out immediately after logging in on iPad
- Login error, incorrect data reported
- Password not accepted during registration
- Authorization error, cannot watch 3D models
- App closes user session
- App keeps kicking user out
- App keeps logging user out
- User login required for every event even after logging in
- App is unusable after password change
- App crashes continuously
- Downloads get stuck around 60%
- App takes a long time to open
- Premium account is a problem to use
- App is not working after update
- App not working on iPad Air and iPhone X
- Cannot open app after installation
- Login issues, password incorrect
- App crashes
- App is slow and lags
- App requires login for most content
- App is not an animation tool, just for watching
Requested features
10 requests- Update lymphatic system scene with 3D cross-sections
- Add 3D scene about domestic cat
- Add 3D scene about digestive system
- Add narration for better understanding
- More topics for small kids (plants, flowers, animals)
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- Allow users to take notes
- More free content or better premium access
- Improve exercises to align with scene content
- Add more subjects/topics
- Improve creative approach and details in animations
HMH Science Dimensions
Not enough reviews yet to summarise bugs or requests.
In-app purchases
mozaik3D
- Mozaik STUDENT - (1 Year)$44.99
- Mozaik TEACHER - (1 Year)$119.99
HMH Science Dimensions
No in-app purchases
Questions
Is mozaik3D free?
Is HMH Science Dimensions free?
Which has better reviews, mozaik3D or HMH Science Dimensions?
Do mozaik3D or HMH Science Dimensions have ads?
Which is updated more often, mozaik3D or HMH Science Dimensions?
Other comparisons
