Comparison

Blindfold Sudoku vs SoundEcho

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

Head to head
About

Blindfold Sudoku

This game offers an accessible Sudoku experience for both sighted and visually impaired players. It uses audio cues and gestures for rapid gameplay, allowing you to play without seeing the board. Customize audio feedback and purchase additional puzzles.

Highlights
  • Audio-based gameplay
  • Gesture controls
  • VoiceOver compatibility
  • Customizable audio cues
  • Multiple difficulty levels
  • In-app puzzle purchases
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.  Sudoku is a fully accessible Sudoku game for both sighted and visually impaired people, designed for rapid audio play. Sudoku comes with 5 Sudoku 9-by-9 puzzles - easy, medium and difficult - and is controlled through gestures. It doesn't require voice-over but is fully compatible with voice-over. The Sudoku puzzle board is not visible; instead, you play by listening. Tap on a cell to hear what's in the cell, swipe right to hear the row, swipe down to hear the column and swipe up to hear the square. Sudoku gives you audio cues to tell the difference between the initial puzzle cells and the cells you fill in, and it lets you set multiple candidates for a cell. You can customize the game to your liking: how much extra information is spoken and how quickly it is spoken. Additional Sudoku puzzles are available as an in-app upgrade.

About

SoundEcho

A fun and accessible memory game using sound cues. Players match pairs of buttons that produce the same sound to clear the board. Supports multiple sound themes and player counts, with Game Center integration.

Highlights
  • Sound-based memory matching
  • VoiceOver accessibility
  • Animal and computer sound themes
  • Multiple difficulty levels (10, 15, 20 sounds)
  • 2-4 player real-time multiplayer
  • Game Center integration
Features
Read full description

SoundEcho is a memory game with sounds that is easy to play and fully accessible with VoiceOver. SoundEcho is enjoyable for blind, low vision and sighted players alike. The gameplay is simple. Buttons showing a letter, number or smiley are spread across the screen. Tap a button to hear a sound. If two different buttons produce the same sound, they disappear. Find all matching sounds as quickly as possible with as few taps as you can. Choose from 4 sound categories: the classic animal and computer sounds, or the alternative traffic and musical instrument sounds. Each game contains 10, 15 or 20 sound pairs. SoundEcho integrates Game Center so you can compare scores, track achievements and play real-time matches with 2 to 4 players. SoundEcho was nominated for the 2023 Golden Apple Awards by the AppleVis website. Try SoundEcho for free today.

Screenshots

Blindfold Sudoku2 screens
SoundEcho3 screens

Verdict

The call

The clearest difference is rating: SoundEcho at 4.3 against Blindfold Sudoku's 3.7. SoundEcho also leads on monetization model (free vs free with in-app purchases). Blindfold Sudoku's advantage is iOS requirement (8.0 vs 17.0). On price, review sentiment, ratings volume and update cadence 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 Sudoku sells 9 one-off in-app purchases and SoundEcho sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SoundEcho holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Blindfold Sudoku ships an update every 3 weeks, SoundEcho every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Blindfold Sudoku versus SoundEcho: the parameters behind the verdict, then further details
ParameterBlindfold SudokuSoundEcho
PriceFreeFree
Rating3.7 (3 ratings)4.3 (3 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings33
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better17.0
Further details — not scored
Size10 MB7 MB
Age rating4+12+
Developermarty schultzKristof Nijs

Customer experience

Blindfold Sudoku

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SoundEcho

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

Blindfold Sudoku

One-time9
  • Easy Pack #1, 25 Puzzles$1.99
  • Easy Pack #2$3.99
  • Medium Pack #1$3.99
Show 6 more
  • Hard Pack #1$3.99
  • Very Easy Pack #1$3.99
  • Easy Pack #3$9.99
  • Medium Pack #2$9.99
  • Hard Pack #2$9.99
  • Very Easy Pack #2$9.99
1 purchases

SoundEcho

One-time1
  • Purchasing the app$4.49

Questions

Is Blindfold Sudoku free?
Blindfold Sudoku is free to download, with in-app purchases available.
Is SoundEcho free?
SoundEcho is free to download, with in-app purchases available.
Which has better reviews, Blindfold Sudoku or SoundEcho?
SoundEcho is rated higher. Blindfold Sudoku averages 3.7 out of 5 from 3 ratings, while SoundEcho averages 4.3 from 3 ratings.
Do Blindfold Sudoku or SoundEcho have ads?
Neither Blindfold Sudoku nor SoundEcho shows ads.
Which is updated more often, Blindfold Sudoku or SoundEcho?
Blindfold Sudoku ships an update every 3 weeks, and SoundEcho every 5 weeks. Most recently, Blindfold Sudoku was updated on November 2, 2026 and SoundEcho on November 3, 2026.

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