Rubber Duck Defender vs Deep Blue
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Rubber Duck Defender
Defend yourself as a rubber duck against incoming toy boats by throwing rocks. Enjoy authentic graphics and sounds inspired by bath toys in this endless aquatic adventure.
- Play as a rubber duck
- Defend against toy boats
- Throw rocks at targets
- Authentic bath toy graphics and sounds
- Unlimited levels
- Quick gameplay
Read full descriptionHide full description
Rubber Duck Defender is a great game for kids of all ages! In the game you play the part of a rubber duck going through the water. As you are just minding your own business, toy boats come toward you. Armed with rocks, you must stop them all. Simply touch the screen and the duck will throw the rock in that direction. You have an unlimited number of rocks, but the game does keep track of your misses, so accuracy is a good idea. Features of the game: - Authentic graphics and sounds. All the boats and duck pictures are taken from actual bath toys. The sound effects are recordings of those same toys. - Quick game play - Unlimited levels for never ending fun.
Deep Blue
Guide mantas through underwater obstacle courses with simple one-finger swipes. Enjoy 50 unique stages, each under 20 seconds, with power-up modes and collectible badges. Compete with others for high scores via Game Center.
- One-finger swipe controls
- 50 unique stages
- Obstacle avoidance gameplay
- Power mode for smashing obstacles
- Collectible badges
- Game Center leaderboards
Read full descriptionHide full description
Game description - Mantas swim slowly in oceans like flying in the sky - Avoid mantas colliding with obstacles - 50 unique stages - Swipe with one finger - Each stage is less than 20 seconds - Smash obstacles in power mode - Get badges (Advanced, Superior, Master) - Compete for score and stages with other players through Game Center - Free
Screenshots
Verdict
The clearest difference is price: Deep Blue at Free against Rubber Duck Defender's $1.99. Deep Blue also leads on update cadence (every 16 months vs every 34 months). Rubber Duck Defender's advantage is rating (5.0 vs 4.4) and ads (none vs shown). On ratings volume, in-app purchases, device support and iOS requirement 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
Deep Blue is free to download; Rubber Duck Defender costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Rubber Duck Defender holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 3 and 7 respectively.
Rubber Duck Defender ships an update every 34 months, Deep Blue every 16 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Rubber Duck Defender | Deep Blue |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (3 ratings) — better | 4.4 (7 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 | 7 — better |
| Update frequency | Every 34 months | Every 16 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Ducky Planet LLC | Noriaki Murao |
Customer experience
Rubber Duck Defender
Deep Blue
In-app purchases
Rubber Duck Defender
No in-app purchases
Deep Blue
No in-app purchases
Questions
Is Rubber Duck Defender free?
Is Deep Blue free?
Which has better reviews, Rubber Duck Defender or Deep Blue?
Do Rubber Duck Defender or Deep Blue have ads?
Which is updated more often, Rubber Duck Defender or Deep Blue?
Other comparisons
