SmartTub vs Gachakon3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartTub
Experience a playful virtual bath with floating ducks. Interact with them by tilting your device, shaking to add more, flicking them around, or tapping to hear them quack. Enjoy a simple, interactive entertainment experience.
- Tilt to move ducks
- Shake to add ducks
- Flick ducks
- Tap ducks to quack
- Force Touch on Apple Watch to reset
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Replicate the bath by SmartTub and enjoy swinging ducks! How to (iPad) - Tilt Device : move ducks - Shake Device : add ducks - Flick ducks : move ducks - Touch a duck : quack How to (AppleWatch) - Tilt Watch : move ducks - Shake Watch : add ducks - Flick ducks : move ducks - Force Touch : revert to the original number of ducks # To show add-on dialog, please turn "Show add-on" on in the Setting.app. # Demo video : http://www.youtube.com/watch?v=HsD4jtvstL8 Sound Effect ・OtoLogic(https://otologic.jp) ・WEB WAVE LIB(http://www.s-t-t.com/wwl)
Gachakon3D
Experience a virtual toy capsule machine with a variety of collectible 3D figures, robots, and dinosaur skeletons. Discover games and toys, and use AR to view items in real size or control RC robots.
- Virtual toy capsule machine
- Collect 3D figures and models
- AR viewing and interaction
- RC robot control with AR
- Collect dinosaur bones
- Play mini-games and toys
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Gachakon3D is a virtual toy capsule machine app. You can get a coin each 15 minutes and enjoy it completely for free. This app does not contain any purchase items. Let's complete all prizes! PrizeList: Figure：32 unique figures. Because they are 3D, you can rotate them. Moreover, it can display with the real size by AR. Beat Figure: 16 beat Figures. You can enjoy the session by collecting it. ButuTank: 11 Robot parts. By collecting all the parts you can play as a RC with AR. T-Rex: 14 Bones of Tyrannosaurus. By collecting all the parts you can display with real size in AR. Mammoth: 14 Bones of Mammoth. By collecting all the parts you can display with real size in AR. Toy: 7 games and toys.
Screenshots
Verdict
The clearest difference is ads: SmartTub at none against Gachakon3D's shown. Gachakon3D's advantage is review sentiment (96% vs 67%) and rating (5.0 vs 4.7). On price, ratings volume, in-app purchases and monetization model 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. SmartTub sells 1 one-off in-app purchase and Gachakon3D sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Gachakon3D holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews point the same way: 67% of SmartTub's written reviews are positive against 96% of Gachakon3D's.
SmartTub ships an update every 5 months, Gachakon3D every 6 weeks. The most recent releases landed on August 27, 2026 and September 22, 2026 respectively.
| Parameter | SmartTub | Gachakon3D |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (13 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 67.0% of reviews | 95.7% of reviews — better |
| Number of ratings | 13 — better | 5 |
| Update frequency | Every 5 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 77 MB | 294 MB |
| Age rating | 4+ | 9+ |
| Developer | sorakaze Inc. | STUDIO-KURA |
Customer experience
SmartTub
Gachakon3D
In-app purchases
SmartTub
- Extension Pack$1.99
Gachakon3D
- Bid Daddy$0.99
- Big Mammy$0.99
