55
BU Score
Solid
Qastle
✍️ bumetric analysis
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Qastle is an iOS app from Krown Technologies LLC in the Finance category, currently rated 4.7★ across 41 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 55: Solid (established niche player). For a Finance 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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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 (4.7★)METRIC | +$2,200 | |
| New app (6 months old)METRIC | −$700 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (41 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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Nov 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+🔖 v1.7.7🔄 updated 2d ago🌐 EN📂 Finance💰 Paid🚀 Launched 2025 (0y old)
📝 About this app
Designed for simplicity, security, and cross-platform use, Qastle brings quantum-grade protection to mainstream crypto users. Future-proof your assets with the world's first Quantum-Secure Web3 Wallet.
“Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/”
“Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/”
🆕 What's New · v1.7.7
Minor issue fixed
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Qastle
- Developer
- Krown Technologies LLC
- Bundle ID
- com.krown.network.qastle-wallet
- App Store URL
- Open in App Store
- Category
- Finance
- Content rating
- 4+
- Languages
- EN
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
- $144/mo
- Top-grossing rank
- 🇨🇦#47 /100
- 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
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- 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/id1881678740
📈Ratings growth41 ratings+4000% lifetimeShow 3-year history estimate ▾
Tracked (8 weeks) Pre-tracking estimate (7 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution●Top 10●Top 30●Top 60
📊Category Rank Trajectory#47 now · best #47 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
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 Qastle: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.