Comparison

Blindfold Bobsled 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

Blindfold Bobsled

An audio-based game where players steer a bobsled down an ice track using sound cues. It offers practice modes and various upgradeable game types for an accessible entertainment experience.

Highlights
  • Audio-based gameplay
  • Steer a bobsled
  • Practice and timed games
  • Adjustable difficulty
  • High score posting
  • Snowball power-up
Features
Read full description

Blindfold Games are entertainment apps provided as a service to the visually impaired community by Objective Ed. Your in-app upgrades pay for the development and support of these games. Bobsled is an fully accessible audio game where you steer a bobsled down an ice-track. In Bobsled, you first learn how to steer and how to speed up or slow down. The game requires the use of headphones or earbuds, so you can keep your bobsled on the track. Then you can play several practice games - timed or not-timed - to help you master controlling your sled. You can change the track width and difficulty of the game. There are several timed games, several untimed games, and an endless game available as upgrades. And there's a snowball feature that lets you collect snowballs to power-up your game. Like the other Blindfold Games, you can post your high scores to Facebook or Twitter.

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

Blindfold Bobsled3 screens
Sonar Islands4 screens

Verdict

The call

The clearest difference is review sentiment: Sonar Islands at 60% against Blindfold Bobsled's 0%. Sonar Islands also leads on rating (3.5 vs 3.0) and ratings volume (83 vs 6). Blindfold Bobsled's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases 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. Blindfold Bobsled sells 5 one-off in-app purchases 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 3.0. That said, the two scores are not equally well evidenced: Sonar Islands has 83 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 0% of Blindfold Bobsled's written reviews are positive against 60% of Sonar Islands's.

UpkeepUpdate frequency

Blindfold Bobsled ships an update fortnightly, Sonar Islands every 2 months. Both last shipped on October 22, 2026.

Scorecard6 real differences · 4 level
Blindfold Bobsled versus Sonar Islands: the parameters behind the verdict, then further details
ParameterBlindfold BobsledSonar Islands
PriceFreeFree
Rating3.0 (6 ratings)3.5 (83 ratings) — better
Positive reviews0.0% of reviews60.1% of reviews — better
Number of ratings683 — better
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better12.5
Further details — not scored
Size17 MB288 MB
Age rating4+12+
Developermarty schultzHansjoerg Mikesch

Customer experience

Blindfold Bobsled

All ratings5 ratings
Positive20.0%
Neutral40.0%
Negative40.0%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

Sonar Islands

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

Bugs and requests

Blindfold Bobsled

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

5 purchases

Blindfold Bobsled

One-time5
  • Short Games$0.99
  • Snowball$0.99
  • Endless Game$1.99
Show 2 more
  • Long Games$1.99
  • Bundle$4.99
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 Blindfold Bobsled free?
Blindfold Bobsled 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, Blindfold Bobsled or Sonar Islands?
Sonar Islands is rated higher. Blindfold Bobsled averages 3.0 out of 5 from 6 ratings, while Sonar Islands averages 3.5 from 83 ratings.
Do Blindfold Bobsled or Sonar Islands have ads?
Neither Blindfold Bobsled nor Sonar Islands shows ads.
Which is updated more often, Blindfold Bobsled or Sonar Islands?
Blindfold Bobsled ships an update fortnightly, and Sonar Islands every 2 months. Most recently, Blindfold Bobsled was updated on October 22, 2026 and Sonar Islands on October 22, 2026.

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