Comparison

Submarine Sonar Multiplayer vs Sonar Islands

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

Head to head
About

Submarine Sonar Multiplayer

Engage in intense multiplayer submarine combat. Hunt down opponents with torpedoes and mines, or utilize stealth to evade detection. Compete in large-scale battles or quick deathmatches.

Highlights
  • Multiplayer submarine combat
  • Online battles with up to 32 players
  • Stealth mode for evasion
  • Sonar detection
  • Torpedo and mine deployment
  • Deathmatch and endless game modes
Features
Read full description

Multiplayer submarine combat simulator. Play online against other players. Search for other submarines, fire torpedoes, drop mines, hide in stealth mode, dominate the sea. The games plays online with 32 players per session and in never ending game in the battlefield or in 5 minute death matches. When your submarine travels with a speed less than stealth threshold it is only visible to those who use their sonar to find it. Using the sonar or firing a torpedo or a mine will reveal your position to other player. Tap to control speed and rudder. Watch out for islands and land.

About

Sonar Islands

Embark on an audio-driven multiplayer adventure across 14 unique islands. Build your empire, explore diverse environments from ancient temples to volcanic landscapes, and engage in various challenges. Full game access requires a subscription.

Highlights
  • Multiplayer online gameplay
  • Audio-driven events
  • Empire building
  • Island exploration and development
  • Diverse island themes
  • Tutorial and story modes
Read full description

Sonar Islands is a MULTIPLAYER ONLINE game, where all relevant events happen in your ears. Build up your empire, explore and develop 14 different islands with this award winning GAME OF THE DAY 2021. Visit an ancient TEMPLE, the ancestors built, where snakes are biting. Take a trip to the JUNGLE, watch abandoned lions on your way Have a merry-go-round on the FUN FAIR and shoot all toys Feel the terraforming heat of the VOLCANO island Short-circuit their brain of the robots from Feer in the MACHINE HALL Get lost in the labyrinth of the PING Island Deal with wind and mosquitos high up on the TREETOP Face the invisible power o ELECTRO. Dance on a ViNYL Record and collect treasures hold by little creatures, Fear the zombies on the GRAVEYARD, Skate on a WINTER LAKE, Visit the monks in their MONASTERY, climb up to HIMALAYA Or decide between HEAVEN or HELL Happy vacation on the islands! Sonar Islands comes with a tutorial, a training island and a story island. To get full access to the game, Sonar Islands offers a monthly and a yearly subscription. When you purchase a subscription, payments will be charged to your App Store account at the confirmation of purchase and will automatically renew unless canceled within 24-hours before the end of the current period. For more information, see our Terms of Use (https://www.mentalhome.eu/terms-of-use/) and our Privacy Policy (https://www.mentalhome.eu/privacy-policy/).

Screenshots

Submarine Sonar Multiplayer3 screens
Sonar Islands4 screens

Verdict

The call

The clearest difference is rating: Sonar Islands at 3.5 against Submarine Sonar Multiplayer's 2.8. Sonar Islands also leads on review sentiment (60% vs 43%) and ratings volume (83 vs 4). Submarine Sonar Multiplayer's advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (9.0 vs 12.5). On price, update cadence, ads and in-app purchases 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. Submarine Sonar Multiplayer sells 1 one-off in-app purchase and Sonar Islands sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sonar Islands holds the better App Store score, 3.5 against 2.8. That said, the two scores are not equally well evidenced: Sonar Islands has 83 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 43% of Submarine Sonar Multiplayer's written reviews are positive against 60% of Sonar Islands's.

UpkeepUpdate frequency

Submarine Sonar Multiplayer ships an update monthly, Sonar Islands every 2 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Submarine Sonar Multiplayer versus Sonar Islands: the parameters behind the verdict, then further details
ParameterSubmarine Sonar MultiplayerSonar Islands
PriceFreeFree
Rating2.8 (4 ratings)3.5 (83 ratings) — better
Positive reviews42.9% of reviews60.1% of reviews — better
Number of ratings483 — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.5
Further details — not scored
Size59 MB288 MB
Age rating4+12+
DeveloperSundqvist Konsult i Umea ABHansjoerg Mikesch

Customer experience

Submarine Sonar Multiplayer

All ratings3 ratings
Positive33.3%
Neutral66.7%
Negative0.0%
Written reviews7 reviews
Positive42.9%
Neutral28.6%
Negative28.6%

Sonar Islands

All ratings83 ratings
Positive56.6%
Neutral13.3%
Negative30.1%
Written reviews143 reviews
Positive60.1%
Neutral10.5%
Negative29.4%

Bugs and requests

Submarine Sonar Multiplayer

Not enough reviews yet to summarise bugs or requests.

Sonar Islands

Reported bugs

4 issues
  • Crashes and freezes on certain devices
  • Compass and navigation issues with iOS 16
  • Incorrect Morse code in tutorial
  • Inconsistent audio cues

Requested features

5 requests
  • Additional free islands to explore
  • Option to purchase game outright instead of subscription
  • More varied event types and challenges
  • Ability to customize islands
  • Support for multiple languages

In-app purchases

1 purchases

Submarine Sonar Multiplayer

One-time1
  • Remove Ads$0.99
5 purchases

Sonar Islands

Subscriptions2
  • Full Access - monthly$2.991 Month
  • Full Access - yearly$29.491 Year
One-time3
  • 100 Diamonds$0.99
  • 500 Diamonds$3.99
  • 1000 Diamonds$5.99

Questions

Is Submarine Sonar Multiplayer free?
Submarine Sonar Multiplayer is free to download, with in-app purchases available.
Is Sonar Islands free?
Sonar Islands is free to download, with in-app purchases available.
Which has better reviews, Submarine Sonar Multiplayer or Sonar Islands?
Sonar Islands is rated higher. Submarine Sonar Multiplayer averages 2.8 out of 5 from 4 ratings, while Sonar Islands averages 3.5 from 83 ratings.
Do Submarine Sonar Multiplayer or Sonar Islands have ads?
Neither Submarine Sonar Multiplayer nor Sonar Islands shows ads.
Which is updated more often, Submarine Sonar Multiplayer or Sonar Islands?
Submarine Sonar Multiplayer ships an update monthly, and Sonar Islands every 2 months. Most recently, Submarine Sonar Multiplayer was updated on November 11, 2026 and Sonar Islands on November 3, 2026.

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