Comparison

DAF Delayed Auditory Feedback vs Magic Fluids Lite

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

Head to head
About

DAF Delayed Auditory Feedback

This app uses delayed auditory feedback to make speaking difficult by playing your voice back through headphones with a slight delay. It's a tool for psychological experiments, allowing users to test the effects of DAF on their own speech.

Highlights
  • Delayed auditory feedback simulation
  • Voice input via microphone
  • Audio output through headphones
  • Psychological experiment tool
  • Adjustable delay effects
  • Speech disruption testing
Features
Read full description

Try saying "toy boat" repeatedly. It's hard to say, right? There are many words like this, and if you have to use them during an important presentation, it can be quite stressful. But with this app, "toy boat" becomes... **Hugely** difficult to say. If you thought, "Wait, shouldn't it make it easier to say?" you're wrong. It really becomes **hugely** difficult to say. This is a "who benefits from this?" kind of app. What this app does is simple. It picks up your voice through the microphone and plays it back through the headphones (or earphones) with a slight delay. That's all it does. This simple process is called Delayed Auditory Feedback, or DAF for short. DAF is known to have interesting effects. It makes it difficult to speak. So, the already difficult "toy boat" becomes **hugely** difficult to say with DAF. This might seem like a "who benefits from this?" kind of thing, but it's a very interesting phenomenon from a cognitive psychology perspective. Also, DAF doesn't always make speech difficult; the extent of the disruption varies depending on the amount of delay and the way you speak. This app is a simple psychological experiment tool that allows you to test when DAF's effects are most pronounced using yourself as the subject. Experiment with different scenarios using "toy boat" as the keyword. **Important** When using this app, you must have headphones (or earphones) with a microphone. You cannot substitute the device's built-in microphone and speakers. I'll say it again. You cannot substitute the device's built-in microphone and speakers. **Warning** DAF creates a speech situation different from normal. It is possible that this may cause some stress to your mind and body. We cannot take any responsibility for any issues that arise from using this app. Please understand the principles of DAF fully and use this app at your own risk. If you feel any abnormalities in your mind or body, stop using the app immediately. Additionally, we do not recommend letting minors, especially young children, experience DAF. **Effect on Stuttering** There are reports that DAF has improved stuttering. However, this app was developed purely as a simple psychological experiment tool to examine how DAF affects the speech of non-stutterers from a cognitive psychology perspective.

About

Magic Fluids Lite

Experience a calming and creative fluid simulation that helps relieve stress and anxiety. Interact with mesmerizing, colorful swirls and patterns that evolve on your screen. Ideal for relaxation, meditation, or creating unique digital art.

Highlights
  • Hypnotizing fluid motion
  • Stress and anxiety relief
  • Aesthetic digital art creation
  • Configurable fluid behavior
  • Save custom presets
  • Smoke, water, and jello animation
  • Light and shadow effects
Features
Read full description

Magic Fluids Lite is a relaxing, colorful fluid simulation app that will help you calm down and relieve stress, or be creative and make aesthetic digital art. It is based on algorithms of fluid flow simulation and features fluid (pun intented!), beautiful graphics. It is the best time waster! TOUCH THE SCREEN and enjoy hypnotizing motion of fluid swirls moving around, sometimes slow, quiet and elegant, other times dynamic, satisfying and trippy. CALM DOWN AND RELAX as you draw and watch peaceful flows evolve in space and eventually settle down into colorful patterns. Magic Fluids will help you sleep, meditate, restore balance, relieve stress and anxiety. GET CREATIVE and, with a touch of your finger, bring to life stylish patterns of paint and particles. If you like abstract digital art or acrylic pour painting, you'll love Magic Fluids! You can create impressive eye-catching designs that look like swirls, galaxies, liquid, fire, light, smoke, lava and much more! KEEP YOUR KIDS BUSY - they love to doodle and watch the fluid move around! We hope that Magic Fluids can also help children with anxiety, autism and sensory issues. Please note: this is NOT a live wallpaper. Key features of Magic Fluids Lite: - Highly configurable fluid behaviour and look - Predefined configuration presets to get you started (10+ are free, ~70 more can be unlocked) - Save your own presets - Pause the animation anytime and save screenshots - Smoke, water and jello animation - 10 fluid textures that add fine detail to the fluid - Amazing light and shadow visual effects - Thousands of particles moving with the fluid - Highly optimized, multiple quality settings Fluid animation in your pocket! Touch the screen and create beautiful motion of colorful smoke and water. Calm down and relax as you watch trippy, magical swirls of flowing colors. Get artistic and design creative, satisfying patterns of paint and particles.

Screenshots

DAF Delayed Auditory Feedback1 screens
Magic Fluids Lite4 screens

Verdict

The call

The clearest difference is review sentiment: Magic Fluids Lite at 90% against DAF Delayed Auditory Feedback's 20%. Magic Fluids Lite also leads on rating (4.7 vs 2.3) and ratings volume (3.2K vs 6). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Magic Fluids Lite holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: Magic Fluids Lite has 3.2K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 20% of DAF Delayed Auditory Feedback's written reviews are positive against 90% of Magic Fluids Lite's.

UpkeepUpdate frequency

DAF Delayed Auditory Feedback ships an update every 6 months, Magic Fluids Lite every 4 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
DAF Delayed Auditory Feedback versus Magic Fluids Lite: the parameters behind the verdict, then further details
ParameterDAF Delayed Auditory FeedbackMagic Fluids Lite
PriceFreeFree
Rating2.3 (6 ratings)4.7 (3.2K ratings) — better
Positive reviews20.0% of reviews90.2% of reviews — better
Number of ratings63.2K — better
Update frequencyEvery 6 monthsEvery 4 months — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size5 MB43 MB
Age rating12+4+
DeveloperJunichiro SeyamaMad Scientist

Customer experience

DAF Delayed Auditory Feedback

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews10 reviews
Positive20.0%
Neutral10.0%
Negative70.0%

Magic Fluids Lite

All ratings3,169 ratings
Positive95.0%
Neutral2.8%
Negative2.2%
Written reviews479 reviews
Positive90.2%
Neutral4.8%
Negative5.0%

Bugs and requests

DAF Delayed Auditory Feedback

Not enough reviews yet to summarise bugs or requests.

Magic Fluids Lite

Reported bugs

2 issues
  • Occasional screen freezing or glitches
  • Inconsistent ad availability

Requested features

4 requests
  • Option to change fluid colors
  • Live wallpaper support
  • More preset options in free version
  • Sound/music integration

In-app purchases

None

DAF Delayed Auditory Feedback

No in-app purchases

None

Magic Fluids Lite

No in-app purchases

Questions

Is DAF Delayed Auditory Feedback free?
DAF Delayed Auditory Feedback is free to download, with no in-app purchases.
Is Magic Fluids Lite free?
Magic Fluids Lite is free to download, with no in-app purchases.
Which has better reviews, DAF Delayed Auditory Feedback or Magic Fluids Lite?
Magic Fluids Lite is rated higher. DAF Delayed Auditory Feedback averages 2.3 out of 5 from 6 ratings, while Magic Fluids Lite averages 4.7 from 3.2K ratings.
Do DAF Delayed Auditory Feedback or Magic Fluids Lite have ads?
Both DAF Delayed Auditory Feedback and Magic Fluids Lite show ads.
Which is updated more often, DAF Delayed Auditory Feedback or Magic Fluids Lite?
DAF Delayed Auditory Feedback ships an update every 6 months, and Magic Fluids Lite every 4 months. Most recently, DAF Delayed Auditory Feedback was updated on November 1, 2026 and Magic Fluids Lite on November 6, 2026.

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