Comparison

Sea Boom vs Case Closed

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

Head to head
About

Sea Boom

Defend a vibrant sea reef from an onslaught of monstrous invaders. Guide exiled sea people in their fight to reclaim their home and restore peace to their underwater kingdom.

Highlights
  • Reef defense gameplay
  • Fight sea monsters
  • Help exiled sea people
  • Restore underwater kingdom
  • Engaging storyline
Features
Read full description

Once upon a time a sea reef was inhabited with good people. But the dark times came to their lands. The reef was attacked by sea monsters and those people were exiled. However, they didn't mean to give up. Help these sea people in defending their reef.

About

Case Closed

Engage in a spy-themed puzzle adventure without time limits or in-app purchases. Guide your hero through challenging missions to collect points and close dossiers, ensuring global safety. The game offers a progressive difficulty curve with tutorials for new elements.

Highlights
  • Addictive puzzle gameplay
  • No time stress or lives system
  • Completely free with no ads
  • Progressive difficulty levels
  • Tutorials for new items
  • Walkthrough videos accessible
Read full description

Case Closed is an addictive puzzle game from 2020, designed to play in waiting rooms and other places, without any time stress or 'out of lives' messages or having to spend money on power-ups. The game is completely free with no advertisements, no banners, nothing. Our hero Casey, having completed 'Spy School' (see Case Open) is now a spy on a mission. His objective is to solve puzzles and close each dossier to help the world stay safe. He will encounter many difficulties and sometime these seem impossible to solve. Whereas in 'Spy School' the problems were static (no moving objects), in real life there are all sorts of things to interact with, and the mission space is often larger than the classroom settings from before. Goal: Solve 20 dossiers with each a number of missions In each mission guide Casey to the exit by collecting all required points. The game starts with easy levels and builds up to much more difficult levels. Every time a new item is introduced you'll get some tutorial missions. If you register you get 5 skip options which allows you to skip 5 missions of your choice, when you solve a previously skipped mission, you regain the skip. There are several walkthrough videos available on our website, accessable directly from the app by using the pause screen (click on the exit button in the right top when playing a mission). Every mission has been fully tested and can be solved, we guarantee it. We hope you enjoy the game, Jake Solutions

Screenshots

Sea Boom4 screens
Case Closed3 screens

Verdict

The call

The clearest difference is rating: Case Closed at 5.0 against Sea Boom's 4.0. Case Closed also leads on in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 15 months). Sea Boom's advantage is iOS requirement (9.0 vs 11.0). On price, ratings volume, ads 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. Sea Boom sells 3 one-off in-app purchases. Case Closed asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Case Closed holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Sea Boom ships an update every 15 months, Case Closed every 2 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Sea Boom versus Case Closed: the parameters behind the verdict, then further details
ParameterSea BoomCase Closed
PriceFreeFree
Rating4.0 (2 ratings)5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings22
Update frequencyEvery 15 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better11.0
Further details — not scored
Size68 MB52 MB
Age rating4+4+
DeveloperDenis SokolovCornelis Aerts

Customer experience

Sea Boom

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%

Case Closed

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Sea Boom

One-time3
  • Disable Ads$0.99
  • Unlock All Levels$0.99
  • Unlock All Reefs$0.99
None

Case Closed

No in-app purchases

Questions

Is Sea Boom free?
Sea Boom is free to download, with in-app purchases available.
Is Case Closed free?
Case Closed is free to download, with no in-app purchases.
Which has better reviews, Sea Boom or Case Closed?
Case Closed is rated higher. Sea Boom averages 4.0 out of 5 from 2 ratings, while Case Closed averages 5.0 from 2 ratings.
Do Sea Boom or Case Closed have ads?
Neither Sea Boom nor Case Closed shows ads.
Which is updated more often, Sea Boom or Case Closed?
Sea Boom ships an update every 15 months, and Case Closed every 2 weeks. Most recently, Sea Boom was updated on October 22, 2026 and Case Closed on October 24, 2026.

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