MARVLS vs SavePals
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MARVLS
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Augmented Reality Models of topics in the first semester of a physics course including vectors, centroids, forces, impulse, momentum, projectiles, circular motion, torque, right-hand rule, and simple harmonic motion. 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.
SavePals
Visualize the growth potential of your regular expenses by investing them instead. This financial companion helps you rethink daily, weekly, monthly, or yearly spending with intuitive charts and insights. Make informed financial decisions to see how your money could grow over time.
- Visualize spending growth
- Investment potential insights
- Daily, weekly, monthly tracking
- Intuitive charts
- Informed financial decisions
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SavePals is your financial companion designed to help you rethink your regular expenses. With intuitive charts and insights, you can visualize how your daily, weekly, monthly, or yearly spending could grow if invested instead. Whether it's your morning coffee or monthly subscriptions, SavePals shows you the potential future value of your money. Start making informed financial decisions today with SavePals!
Screenshots
Verdict
The clearest difference is iOS requirement: SavePals at 16.6 against MARVLS's 18.0. On price, update cadence, 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.
MARVLS ships an update every 4 months, SavePals every 2 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.
| Parameter | MARVLS | SavePals |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 242 MB | 12 MB |
| Age rating | 9+ | 4+ |
| Developer | Michele McColgan | Supparsorn Wantarnagon |
In-app purchases
MARVLS
No in-app purchases
SavePals
No in-app purchases
