Comparison

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.

Head to head
About

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.

Highlights
  • Bouncing plasma ball weapon
  • Ricocheting projectiles
  • Alien force field defense
  • Tilt or on-screen controls
  • Fast-paced arcade action
  • Retro graphics
Features
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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.

About

"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

Rebound Invaders4 screens
"21 With Dice"4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard3 real differences ยท 5 level
Rebound Invaders versus "21 With Dice": the parameters behind the verdict, then further details
ParameterRebound Invaders"21 With Dice"
PriceFreeFree
Positive reviews0.0% of reviewsโ€”
Update frequencyEvery 18 monthsEvery 3 weeks โ€” better
AdsYesNo โ€” better
In-app purchasesNoNo
MonetizationAd-supportedโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better17.6
Further details โ€” not scored
Size46 MB5 MB
Age rating+94+
DeveloperGalatic DroidsThomas Timberlake

In-app purchases

None

Rebound Invaders

No in-app purchases

None

"21 With Dice"

No in-app purchases

Questions

Is Rebound Invaders free?
Rebound Invaders is free to download, with no in-app purchases.
Is "21 With Dice" free?
"21 With Dice" is free to download, with no in-app purchases.
Do Rebound Invaders or "21 With Dice" have ads?
Rebound Invaders shows ads; "21 With Dice" does not.
Which is updated more often, Rebound Invaders or "21 With Dice"?
Rebound Invaders ships an update every 18 months, and "21 With Dice" every 3 weeks. Most recently, Rebound Invaders was updated on November 1, 2026 and "21 With Dice" on October 31, 2026.

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