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52
BU Score
Solid

Qボトル

5.0 ✍️ Editor
✍️ bumetric analysis

Qボトル is an iOS app from kitamura hira in the Social Networking category, currently rated 5.0★ across 2 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Our BU Score puts it at 52: Solid (established niche player). For a Social Networking app, that means established niche player.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue 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 7 of 7 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 (5.0★)METRIC
+$2,200
bugsREVIEW
−$1,800
5 starREVIEW
+$1,800
Mature app (15y old)METRIC
+$1,500
slowREVIEW
−$1,200
Pre-traction phase (2 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 115 MB🔞 17+📱 iOS 15.0+🔖 v7.10🔄 updated 1y ago🌐 EN, JA, ZH📂 Social Networking💰 Free🚀 Launched 2011 (15y old)

📝 About this app

Write your mind, your hope, and your secret with QBottle.

How to create a bottle:
Touch the “beach” button to go to the beach ,then touch the “write” to create a new bottle. You can choose your favorite letter paper and bottle here, then write what you want to say.

How to get bottles:
You can walk along the beach to search bottles by finger, or touch the dog icon let it help you pick bottles.

🆕 What's New · v7.10

- Fixed the error in GIF generation and some other errors
- Optimized for iOS 18

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Qボトル
Developer
kitamura hira
Bundle ID
jp.dreamo.message.bottle
App Store URL
Open in App Store
Category
Social Networking
Content rating
17+
Languages
EN, JA, ZH

Company

Website
dreamo.jp
Tagline
Not found
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
$1.1K/mo
Top-grossing rank
Outside top 100 in US Social Networking
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
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
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
Recent App Store Reviews31 latest · avg 3.68★ · 41.9% 5★ · 16.1% 1★
5★
13 (42%)
4★
6 (19%)
3★
6 (19%)
2★
1 (3%)
1★
5 (16%)
+0 ratings/week
Praise: love ×7 great ×5 perfect ×2 best ×2 amazing ×2Complaints: crash ×6 bug ×2 broken ×1
Top positive
★★★★★ Great
Got messages from Korea..I am in USA..CRAZY COOL…
★★★★★ Love it!
Really cool and creative app! You never know what you're going to get or from where.…
Top negative
★☆☆☆☆ Not working
Can't open this app on my 3gs iphone could that be the reason?? Please make sure the next update works on 3gs iphone pleeeease…
★☆☆☆☆ Waisted $$ until fixed
Well, I thought this app was goingvto be really good based on reviews so I bought it. I have send bottles out with responses. I have received 4 bottles in a week and 3 of those were from the same repeating user (like an add) I would have r…
📈Ratings growth2 ratings+-33% lifetimeShow 3-year history estimate ▾Feb 2011Feb 2024May 2026
Tracked (21 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.

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Full revenue analysis
Read the article-style breakdown for Qボトル: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →