48
BU Score
Emerging
qb | Delayed Auditory Feedback
✍️ bumetric analysis
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qb | Delayed Auditory Feedback is an iOS app from Giuseppe Di Cienzo in the Education category, currently rated 4.5★ across 4 ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.
Our BU Score puts it at 48: Emerging (early traction worth watching). For a Education app, that means early traction worth watching.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.5★)METRIC | +$2,200 | |
| Multilingual (12 languages)METRIC | +$1,500 | |
| Established app (5y old)METRIC | +$800 | |
| Pre-traction phase (4 ratings)METRIC | −$300 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 22 MB🔞 17+📱 iOS 14.0+🔖 v1.2🔄 updated 3y ago🌐 EN, FR, DE, HE, ID +7📂 Education💰 Paid🚀 Launched 2021 (5y old)
📝 About this app
qb DAF is professional Delayed Auditory Feedback.
Delayed Auditory Feedback allows us to hear our voice with a slight delay.
This delay allows us to give feedback from our voice in real time. By using the DAF we will improve our fluency immediately.
This is because by listening to our voice we will set the right breathing and the right time, overcoming those obstacles that we would normally have encountered.
To use the DAF you need to have headphones and set the delay between 50 ms and 75 ms.
For those who use bluetooth headphones, there is already a delay, because the bluetooth signal takes longer to arrive than headphones with cable. Setting the delay to 0 ms will still have the delay between 50 ms and 75 ms.
The DAF is very suitable for those who want to practice speak exercises, to reduce stuttering by up to 80% instantly, or those who simply want to prepare for a speech.
To use the DAF it is necessary to be equipped with wired or bluetooth headphones with microphone.
Delayed Auditory Feedback allows us to hear our voice with a slight delay.
This delay allows us to give feedback from our voice in real time. By using the DAF we will improve our fluency immediately.
This is because by listening to our voice we will set the right breathing and the right time, overcoming those obstacles that we would normally have encountered.
To use the DAF you need to have headphones and set the delay between 50 ms and 75 ms.
For those who use bluetooth headphones, there is already a delay, because the bluetooth signal takes longer to arrive than headphones with cable. Setting the delay to 0 ms will still have the delay between 50 ms and 75 ms.
The DAF is very suitable for those who want to practice speak exercises, to reduce stuttering by up to 80% instantly, or those who simply want to prepare for a speech.
To use the DAF it is necessary to be equipped with wired or bluetooth headphones with microphone.
🆕 What's New · v1.2
Some bugs fixed
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- qb | Delayed Auditory Feedback
- Developer
- Giuseppe Di Cienzo
- Bundle ID
- eu.luxcom.esperimentoFluence
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 17+
- Languages
- EN, FR, DE, HE, ID, IT, JA, KO, RU, ZH, ES, TR
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $86/mo
- Top-grossing rank
- Outside top 99 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1583092806
📈Ratings growth4 ratings+100% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
Full revenue analysis
Read the article-style breakdown for qb | Delayed Auditory Feedback: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.