67
BU Score
Solid
Audio Book Unlimited to Kindle
✍️ BU Analytics Review
“
Audio Book Unlimited to Kindle is an iOS app from Nguyen Hong Phuc in the Food & Drink category, currently rated 4.6★ across 174 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 67 — Solid (established niche player). For a Food & Drink app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
Loading…
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 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.6★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| New app (8 months old)METRIC | −$700 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (174 ratings)METRIC | +$400 | |
| Single-language (English only)METRIC | −$400 |
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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Sep 25
Jan 26
Feb 26
Mar 26
⭐ 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 →💾 57 MB🔞 4+📱 iOS 15.1+🔖 v1.5.14🔄 updated 0d ago🌐 EN📂 Food & Drink💰 Paid🚀 Launched 2025 (0y old)
📝 About this app
Love books? Love Kindle? You’ll love Audiobooks Unlimited to Kindle—the smart way to turn your Kindle library into endless listening.
With advanced AI text-to-speech, your Kindle books and Kindle Unlimited titles transform into natural-sounding audiobooks. Perfect for commuting, working out, cooking, or winding down before bed.
Why you’ll love it:
- Free Alternative to Audible
- Transform any Kindle book into an audiobook with lifelike AI voices
- Works with Kindle Unlimited & Amazon Kindle titles
- Replace endless scrolling with endless listening
- Reach your reading goals faster by listening anywhere, anytime
- Customize your listening with speed controls and voice options
Who is it for?
Readers who love Kindle, Kindle Unlimited, Audible, and audiobooks free apps—now you can enjoy the best of both worlds.
Stop choosing between reading and listening. With Audiobooks Unlimited to Kindle, your Kindle library becomes your personal audiobook collection—always with you, always ready.
Kindle® is a registered trademark of Amazon Technologies, Inc. This app is not affiliated with or endorsed by Amazon.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
With advanced AI text-to-speech, your Kindle books and Kindle Unlimited titles transform into natural-sounding audiobooks. Perfect for commuting, working out, cooking, or winding down before bed.
Why you’ll love it:
- Free Alternative to Audible
- Transform any Kindle book into an audiobook with lifelike AI voices
- Works with Kindle Unlimited & Amazon Kindle titles
- Replace endless scrolling with endless listening
- Reach your reading goals faster by listening anywhere, anytime
- Customize your listening with speed controls and voice options
Who is it for?
Readers who love Kindle, Kindle Unlimited, Audible, and audiobooks free apps—now you can enjoy the best of both worlds.
Stop choosing between reading and listening. With Audiobooks Unlimited to Kindle, your Kindle library becomes your personal audiobook collection—always with you, always ready.
Kindle® is a registered trademark of Amazon Technologies, Inc. This app is not affiliated with or endorsed by Amazon.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
🆕 What's New · v1.5.14
- improved perforance and fixed bugs
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Audio Book Unlimited to Kindle
- Developer
- Nguyen Hong Phuc
- Bundle ID
- com.one-letters.audiobooks-ai
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 4+
- Languages
- EN
Company
- Website
- blog.ttspro.app
- Tagline
- TTS Pro Blog
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $10.4K/mo
- Top-grossing rank
- Outside top 100 in US Food & Drink
- 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
- Not found
📈Ratings growth174 ratings+17300% lifetimeShow 3-year history estimate ▾
Tracked (9 weeks) Pre-tracking estimate (9 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.
More Food & Drink
DoorDash: Food, Grocery, More
★ 4.8 · 21,691,269 reviews
Uber Eats: Essen, Lieferdienst
★ 4.8 · 10,346,813 reviews
McDonald's
★ 4.8 · 7,675,129 reviews
Kindle
★ 4.9 · 5,609,451 reviews
Audible: Audiobooks & Podcasts
★ 4.8 · 5,507,414 reviews
Libby, die Bibliotheks-App
★ 4.7 · 4,126,898 reviews
Chick-fil-A
★ 4.9 · 3,909,638 reviews
Hoopla Digital
★ 4.8 · 1,341,327 reviews
Browse BU Analytics
📚 All 55,000+ Books
🜍 Alchemy & Hermeticism
🔮 Magic & Ritual
🌙 Witchcraft & Paganism
⭐ Astrology & Cosmology
🃏 Divination & Tarot
📜 Food & Drink
✡️ Kabbalah & Jewish Mysticism
🕉️ Mysticism & Contemplation
🕊️ Theosophy & Anthroposophy
🏛️ Freemasonry & Secret Societies
👻 Spiritualism & Afterlife
📖 Sacred Texts & Gnosticism
👁️ Supernatural & Occult Fiction
🧘 Spiritual Development
📚 Esoteric History & Biography
Info
About BU Analytics