Comparison

Crab Castles vs Tentacles Attack

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Crab Castles

Build sandcastles with crab helpers on a tropical island, overcoming obstacles like gulls and earthquakes. Earn in-game currency to upgrade your crabs and explore beaches while learning marine life facts. A portion of in-app purchases supports ocean conservation.

Highlights
  • Sandcastle building with crab helpers
  • Obstacle challenges (gulls, earthquakes)
  • In-game currency for upgrades
  • Marine conservation education
  • Creative sandbox mode
  • Trash cleanup missions
Features
Read full description

Welcome to Fiddler Island, a tropical paradise where you can play and support Marine Conservation, and a day at the beach becomes a full-on sandcastle building challenge! With feisty crabs as your helpers, build your blocks to the goal lines before time runs out; but beware, "pirate" gulls & baby sea turtles will try to stop you. You will also need to deal with earthquakes, giant beach balls and strong winds! Use logic and skill to win doubloons and pearls used in the store for upgrades, colorful crab body art and more. Challenge Levels and awards also await our top competitors. As part of your marine mission, you’ll have to explore Tropical Beach and clean up trash while collecting doubloons, taking cover behind trees from attacking gulls and searching for pearl targets. While you take a breath between building, enjoy marine life fun facts. And, a portion of in app purchases revenue goes to help our oceans and support marine conservation programs. So, Congratulations- just by playing this game you are a Player in Making a Better World! True sandcastle artists will love Sandbox Beach, which is a creative space. Here you can build to your heart’s content without interruptions or time constraints using many different block shapes, flags, seashells, sea stars, doors and shutters. When your own unique masterpiece is completed, save a picture, or share an image of it with friends on Facebook, Instagram and other social media...or destroy it with a bang and start again! Our original soundtrack, the Crab Castles Surf Shop, captivating 3-D graphics and original ocean characters make your escape to Fiddler Island marine magic! Go to CrabCastles.com and look for Game Tips! Crab Castles takes a different approach to the classic block building puzzle genre. The goal of this game is not only to reach and maintain a certain height in a specified amount of time, but also to use action strategies. Build Levels have four goal lines and a Challenge level. If the block tower is built and is standing at or above the first green goal line when the timer goes to zero, you can move on to the next level. When all four goal lines in a level are achieved, the challenge level for that level will open. Special Levels introduce new game play: here you must control your crab’s speed and direction while it runs around Tropical Beach. Your primary goal is to pick up the trash items before the time runs out. That wins the level. Along the way pickup doubloons (win points) and win pearls by hitting pearl targets by tapping on the screen. Once you collect all the pearl targets in level 30, the doubloons on the beach turn to Platinum and are worth double points. If you can collect all the trash and all the platinum doubloons in one gameplay, you will reset the pearl targets! The platinum doubloons will turn back to gold. Under our Terms of Service and Privacy Policy, you must be at least 13 years of age to download Crab Castles.

About

Tentacles Attack

Control a creature with tentacles to grab enemies and grow larger. Conquer the entire city by expanding your reach and overwhelming your opponents.

Highlights
  • Tentacle grabbing mechanics
  • Grow in size
  • City takeover gameplay
  • Enemy conquest
Features
Read full description

Grab your enemies with your tentacles, grow in size, take over the city!

Screenshots

Crab Castles1 screens
Tentacles Attack4 screens

Verdict

The call

The clearest difference is review sentiment: Crab Castles at 80% against Tentacles Attack's 3%. Crab Castles also leads on rating (4.5 vs 2.0) and ads (none vs shown). Tentacles Attack's advantage is in-app purchases (none vs 10) and update cadence (every 10 days vs every 6 weeks). On price and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Crab Castles sells 10 one-off in-app purchases. Tentacles Attack asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Crab Castles holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: Tentacles Attack has 39 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of Crab Castles's written reviews are positive against 3% of Tentacles Attack's.

UpkeepUpdate frequency

Crab Castles ships an update every 6 weeks, Tentacles Attack every 10 days. The most recent releases landed on June 11, 2026 and September 4, 2026 respectively.

Scorecard8 real differences · 2 level
Crab Castles versus Tentacles Attack: the parameters behind the verdict, then further details
ParameterCrab CastlesTentacles Attack
PriceFreeFree
Rating4.5 (2 ratings) — better2.0 (39 ratings)
Positive reviews80.0% of reviews — better3.2% of reviews
Number of ratings239 — better
Update frequencyEvery 6 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better11.0
Further details — not scored
Size150 MB277 MB
Age rating4+4+
DeveloperArtsTechLabYso Corp

Customer experience

Crab Castles

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive80.0%
Neutral6.7%
Negative13.3%

Tentacles Attack

All ratings39 ratings
Positive23.1%
Neutral2.6%
Negative74.4%
Written reviews31 reviews
Positive3.2%
Neutral16.1%
Negative80.6%

In-app purchases

10 purchases

Crab Castles

One-time10
  • RemoveAds_U1M changed$0.99
  • GuidedSandDollar_PU1M Changed$0.99
  • StopGulls.PU2M Changed$0.99
Show 7 more
  • StopTurtles_PU3M changed$0.99
  • Guided Sand Dollar Pack Of Ten$0.99
  • Stop Gulls Pack Of Ten$0.99
  • Stop Turtles Pack Of Ten$0.99
  • Guided Sand Dollar Consumable$0.99
  • Stop Gulls Consumable$0.99
  • Stop Turtles Consumable$0.99
None

Tentacles Attack

No in-app purchases

Questions

Is Crab Castles free?
Crab Castles is free to download, with in-app purchases available.
Is Tentacles Attack free?
Tentacles Attack is free to download, with no in-app purchases.
Which has better reviews, Crab Castles or Tentacles Attack?
Crab Castles is rated higher. Crab Castles averages 4.5 out of 5 from 2 ratings, while Tentacles Attack averages 2.0 from 39 ratings.
Do Crab Castles or Tentacles Attack have ads?
Tentacles Attack shows ads; Crab Castles does not.
Which is updated more often, Crab Castles or Tentacles Attack?
Crab Castles ships an update every 6 weeks, and Tentacles Attack every 10 days. Most recently, Crab Castles was updated on June 11, 2026 and Tentacles Attack on September 4, 2026.

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