Comparison

Blindfold Flappy 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 Flappy

An audio-based game designed for the visually impaired community. Navigate a bird through pipe gaps by tapping the screen to control its ascent, using distinct audio cues to guide your flight.

Highlights
  • Fully accessible audio gameplay
  • Tap-to-fly mechanic
  • Spatial audio cues for navigation
  • In-app coin upgrades
  • Designed for visually impaired users
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.  Flappy is an fully accessible audio game, inspired by the mobile game Flappy Bird. The objective is to move your bird so it's flies through the holes in the pipes. Your bird is at the left side of the screen, and falls from the top of the screen to the bottom; your bird pops up a little each time you tap the screen. Constantly moving towards your bird are pipes that run from the top of the screen to the bottom of the screen; each pipe has a gap, or a hole, in it. Your task is to move your bird so that when the pipe is about to hit your bird, your bird is lined up with the hole, and passes through it. This game can be played with or without headphones or earbuds, but when you are starting out, earbuds will make it easier. Once you get the hang of it, you can just listen to the sounds. In your left ear, you hear a tone that indicates where your bird is. As the bird drops, the tone drops in pitch. Each time you tap the screen, the tone increases in pitch. In your right ear, you hear a tone that indicates where the mid-point of the hole in the pipe is. As the pipe gets closer and closer to you, the sound gets louder. To ensure your bird will make it through the hole, you want the tones in both your ears to be as close in pitch as possible. The game comes with coins; you need one coin to play. More coins are available as an in-app upgrade.

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 Flappy3 screens
Sonar Islands4 screens

Verdict

The call

The clearest difference is rating: Blindfold Flappy at 4.4 against Sonar Islands's 3.5. Blindfold Flappy also leads on review sentiment (100% vs 60%) and monetization model (free with in-app purchases vs subscription). Sonar Islands's advantage is ratings volume (83 vs 5) and update cadence (every 2 months vs every 5 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 Flappy sells 2 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

Blindfold Flappy holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Sonar Islands has 83 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Blindfold Flappy's written reviews are positive against 60% of Sonar Islands's.

UpkeepUpdate frequency

Blindfold Flappy ships an update every 5 months, Sonar Islands every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 4 level
Blindfold Flappy versus Sonar Islands: the parameters behind the verdict, then further details
ParameterBlindfold FlappySonar Islands
PriceFreeFree
Rating4.4 (5 ratings) — better3.5 (83 ratings)
Positive reviews100.0% of reviews — better60.1% of reviews
Number of ratings583 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better12.5
Further details — not scored
Size14 MB288 MB
Age rating4+12+
Developermarty schultzHansjoerg Mikesch

Customer experience

Blindfold Flappy

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews1 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

Blindfold Flappy

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

2 purchases

Blindfold Flappy

One-time2
  • 20 Coins$0.99
  • Unlimited Coins$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 Flappy free?
Blindfold Flappy 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 Flappy or Sonar Islands?
Blindfold Flappy is rated higher. Blindfold Flappy averages 4.4 out of 5 from 5 ratings, while Sonar Islands averages 3.5 from 83 ratings.
Do Blindfold Flappy or Sonar Islands have ads?
Neither Blindfold Flappy nor Sonar Islands shows ads.
Which is updated more often, Blindfold Flappy or Sonar Islands?
Blindfold Flappy ships an update every 5 months, and Sonar Islands every 2 months. Most recently, Blindfold Flappy was updated on October 24, 2026 and Sonar Islands on October 27, 2026.

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