70
BU Score
Strong
Countdown@
✍️ BU Analytics Review
“
Countdown@ is an iOS app from Wuhan Linggu Dingdang Technology Co., Ltd in the Utilities category, currently rated 4.7★ across 37,225 ratings. Initial signal reads as mostly critical sentiment so far — users flag rough edges and unmet expectations.
Our BU Score puts it at 70 — Strong (healthy traction). For a Utilities app, that means healthy traction.
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 9 of 9 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (37,225 ratings)METRIC | +$5,500 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| Established app (6y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
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
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 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 →💾 50 MB🔞 12+📱 iOS 16.0+🔖 v3.55🔄 updated 0d ago🌐 EN, ZH📂 Utilities💰 Free🚀 Launched 2019 (6y old)
📝 About this app
Countdown@ is a super easy to use countdown timer for the important events in your life.
Count down to your next event: Vacation, Birthday, Holiday, Party, Thanksgiving, Christmas, Halloween, and more - in style!
Features:
• Create different types of events
• Widget to view your most important events
• Count up from past events
• Timeline in every countdown event — diary and notes
——— FEEDBACK ———
Have any suggestions? Feel free to contact us at joezhang176776005@gmail.com
Count down to your next event: Vacation, Birthday, Holiday, Party, Thanksgiving, Christmas, Halloween, and more - in style!
Features:
• Create different types of events
• Widget to view your most important events
• Count up from past events
• Timeline in every countdown event — diary and notes
——— FEEDBACK ———
Have any suggestions? Feel free to contact us at joezhang176776005@gmail.com
🆕 What's New · v3.55
- fix a bug
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Countdown@
- Developer
- Wuhan Linggu Dingdang Technology Co., Ltd
- Bundle ID
- com.zhangkai.countdownchat
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 12+
- Languages
- EN, ZH
Company
- Website
- zhangkaigogo.github.io
- Tagline
- Welcome to Wuhan Lingu Dingdang Technology website
- Description
- Welcome to Countdown@ website
- 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
- $1.7K/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- https://pages.github.com
- 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
- github
- joezhang176776005@gmail.com
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth37,225 ratings+54% lifetimeShow 3-year history estimate ▾
Tracked (57 weeks) Pre-tracking estimate (35 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.
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