Nature's Notebook vs MARVLS AR for Physics 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nature's Notebook
Record observations of plant and animal life cycles, such as flowering and migration. Mark observation sites, create species lists, and log seasonal changes in nature.
- Record plant and animal life cycle events
- Mark observation sites
- Create species lists
- Log seasonal observations
- Citizen science program
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Nature's Notebook is a program for observing and recording plant and animal life cycle events, like flowering and bird migration. Use this app to mark your sites, create a list of plants and animals, and going into the field to record observations throughout the seasons. Find out more at www.usanpn.org/nn/guidelines.
MARVLS AR for Physics 2
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This App provides students with augmented reality visualizations of abstract and 3D concepts in electric fields, magnetism, right-hand-rules, circuits, electromagnets, motors, and generators, optics, 3D integration, nuclear magnetic resonance, and neuroscience. You'll need a Merge Cube ( link included to download from the internet). Click on different button to navigate to different topics. Click on View in AR to view the model. Hold the Merge cube so that your camera can see it well. Move the cube around until you see the model. Click on the buttons to interact with the model. Click the back button to get back to the info screens or to the main screen.
Screenshots
Verdict
The clearest difference is update cadence: Nature's Notebook at every 3 weeks against MARVLS AR for Physics 2's every 4 months. Nature's Notebook also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.0). On price, ads and in-app purchases 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.
Nature's Notebook ships an update every 3 weeks, MARVLS AR for Physics 2 every 4 months. The most recent releases landed on July 7, 2026 and September 8, 2026 respectively.
| Parameter | Nature's Notebook | MARVLS AR for Physics 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (26 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 26 — better | — |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 47 MB | 247 MB |
| Age rating | 4+ | 4+ |
| Developer | National Phenology Network | Michele McColgan |
In-app purchases
Nature's Notebook
No in-app purchases
MARVLS AR for Physics 2
No in-app purchases
Questions
Is Nature's Notebook free?
Is MARVLS AR for Physics 2 free?
Do Nature's Notebook or MARVLS AR for Physics 2 have ads?
Which is updated more often, Nature's Notebook or MARVLS AR for Physics 2?
Other comparisons
