Comparison

Rostlinky 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

Rostlinky

Choose a plant and start growing. Collect bonuses and avoid other plants on the playing field. Can you grow longer than your friends?

Highlights
  • Choose your plant
  • Collect bonuses
  • Avoid other plants
  • Competitive growth
  • Simple controls
Features
Read full description

Vyber si jednu z rostlinek a začni růst. Sbírej bonusy a hlavně se vyhýbej ostatním rostlinkám na hrací ploše. Vydržíš růst déle než tví kamarádi?

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

Rostlinky3 screens
Sonar Islands4 screens

Verdict

The call

The clearest difference is review sentiment: Rostlinky at 100% against Sonar Islands's 60%. Rostlinky also leads on in-app purchases (none vs 5). Sonar Islands's advantage is update cadence (every 2 months vs every 72 months) and iOS requirement (12.5 vs 15.0). On price, 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. Sonar Islands sells 5 in-app purchases, starting at $2.99 per month. Rostlinky asks for nothing beyond the download.

UpkeepUpdate frequency

Rostlinky ships an update every 72 months, Sonar Islands every 2 months. The most recent releases landed on October 15, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Rostlinky versus Sonar Islands: the parameters behind the verdict, then further details
ParameterRostlinkySonar Islands
PriceFreeFree
Rating—3.5 (83 ratings) — better
Positive reviews100.0% of reviews — better60.1% of reviews
Number of ratings—83 — better
Update frequencyEvery 72 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.5 — better
Further details — not scored
Size75 MB288 MB
Age rating4+12+
DeveloperČeská televizeHansjoerg Mikesch

Customer experience

Rostlinky

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sonar Islands

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

Bugs and requests

Rostlinky

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

None

Rostlinky

No in-app purchases

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 Rostlinky free?
Rostlinky is free to download, with no in-app purchases.
Is Sonar Islands free?
Sonar Islands is free to download, with in-app purchases available.
Do Rostlinky or Sonar Islands have ads?
Neither Rostlinky nor Sonar Islands shows ads.
Which is updated more often, Rostlinky or Sonar Islands?
Rostlinky ships an update every 72 months, and Sonar Islands every 2 months. Most recently, Rostlinky was updated on October 15, 2026 and Sonar Islands on October 27, 2026.

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