Rebound Invaders vs "21 With Dice"
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Rebound Invaders
Experience a retro arcade space shooter where your plasma ball bounces off walls and enemies. Dodge your own ricocheting projectiles and alien counter-attacks to survive. Features tilt or on-screen controls for classic shoot'em up action.
- Bouncing plasma ball weapon
- Ricocheting projectiles
- Alien force field defense
- Tilt or on-screen controls
- Fast-paced arcade action
- Retro graphics
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Rebound Invaders from Outer Space Back from the arcade days when classic arcade games ruled we bring you Rebound Invaders from Outer Space. Your ship is equipped with the latest high energy weapon - The Lightening Plasma Ball. Lightening plasma balls are great, they bounce everywhere until they destroy a ship or fall off the bottom of the screen. Great, you can shoot around corners and have lots of bullets in action at the same time, one small design flaw though ... they will also destroy your ship! The aliens are fighting back: They have developed a light saber force field to bounce your plasma balls right back at you - take care not to shoot yourself in the foot! So there's lots of action in this arcade style shoot'em up. You'll need fast reactions, and lots of skill to defeat the "Rebound Invaders from Outer Space". Tilt your screen to move, touch the screen anywhere to fire. If you're not a fan of tilt controls, pop in to the setting and you've find an option to enable on screen controls. Download Rebound Invaders now, its Free.
"21 With Dice"
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The excitement of rolling dice combines with blackjack strategies to beat the dealer. Roll up to 4 times to get closer to 21 without going over. Roll 1, 2, or 3 dice at a time. Roll 3 sixes on your first roll to win instantly! Once your hand is 10 or greater, the computer displays the odds that you will hit 21, improve to 18 or better, or bust. Use that information to help you decide to roll 1, 2, or 3 dice -- but watch out, if you go over 21, you LOSE. Play against your friends (locally) to advance on the leaderboard or play on Game Center to advance on the global leaderboard.
Screenshots
Verdict
The clearest difference is ads: "21 With Dice" at none against Rebound Invaders's shown. "21 With Dice" also leads on update cadence (every 3 weeks vs every 18 months). Rebound Invaders's advantage is iOS requirement (13.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rebound Invaders ships an update every 18 months, "21 With Dice" every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Rebound Invaders | "21 With Dice" |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | โ |
| Update frequency | Every 18 months | Every 3 weeks โ better |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Monetization | Ad-supported | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 13.0 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 46 MB | 5 MB |
| Age rating | +9 | 4+ |
| Developer | Galatic Droids | Thomas Timberlake |
In-app purchases
Rebound Invaders
No in-app purchases
"21 With Dice"
No in-app purchases
Questions
Is Rebound Invaders free?
Is "21 With Dice" free?
Do Rebound Invaders or "21 With Dice" have ads?
Which is updated more often, Rebound Invaders or "21 With Dice"?
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