Knife Collection
34
Quality Score
Emerging
Knife Collection
Low confidence
✍️ bumetric analysis
“
Knife Collection is an iOS app from Frederik Drosdzol in the Productivity category, currently rated 2.6★ across 5 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 34: Emerging (early traction worth watching). For a Productivity app, that means early traction worth watching. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$200
per month
→
12-mo forecast
$100 – $931
per month
→
24-mo forecast
$100 – $2790
per month
MICRO tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$55K
↳ What it cost to build · not monthly revenue
Likely range $40K – $75K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~2.3y at current MRR
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| ⚙ Productivity complexity ×1.10 | +$5K |
Total estimate
$55K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$25K
↳ What it would sell for · not monthly revenue
Marketplace range $20K – $30K · 12× MRR multiple
💸
~0.5× build cost (under-water)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| ⭐ ★ rating < 3.5 (weak) | -18% |
| 🏷 Productivity category multiple | +8% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
12× MRR
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$200/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$127 – $508
12 months
$100 – $931
24 months
$100 – $2.8K
Compound growth at +8.0% MoM (tier baseline for MICRO). Range widens with horizon — typical noise band ±60% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Insufficient data · 30/100MICRO TIERtoo early to scoreRevenue Strength
2.3
Product Quality
2.1
Market Position
0.0
Growth Velocity
5.0
Defensibility
6.0
Operational Safety
5.0
Founder Strength
2.9
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 2.6★ across 5 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 3561d ago — possibly dormant.
- ⚠️ Risk: Elevated — dormant (3561d since update).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 18-32× monthly = $3K-$6K.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
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 | |
| Below-average rating (2.6★)METRIC | −$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| Pre-traction phase (5 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.
🆕 What's New · v1.1
This update from Apple will improve the functionality of this app. No new features are included.
- Bugfixes
- Showing version number
- Bugfixes
- Showing version number
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Knife Collection
- Developer
- Frederik Drosdzol
- Bundle ID
- collection.com.KnifeCollection
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- EN, DE
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
- Available
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $1.9K/mo
- Top-grossing rank
- Outside top 100 in US Productivity
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
⭐Recent App Store Reviews2 latest · avg 3.0★ · 50.0% 5★ · 50.0% 1★
5★1 (50%)
4★0 (0%)
3★0 (0%)
2★0 (0%)
1★1 (50%)
+0 ratings/week
Praise: great ×2
Top positive
★★★★★ Great product could use some minor improvements
The overall user interface is pretty good, sometimes the information listed is not available from the manufacturer, perhaps if there were a few open drop down menus that were customizable for info the manufacturer provides but you don’t hav…
Top negative
★☆☆☆☆ Good foundation - minimal functionality
The idea is good but right now (v1.1) the app is little more than a nicely colored blank page on which you take notes.
The app would greatly benefit from having a catalogue of existing knives (at least production knives from the past few …
📈Ratings growth5 ratings+400% lifetimeShow 3-year history estimate ▾
Tracked (5 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.
💰Pricing History$0.00 → $1.99 (+0%)
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.
📝 About this app
A unique collection deserves optimal organization!
Keep track of your knife collection and its value on the go and when meeting other collectors. Well organized and always available.
Add new knives with your own pictures and notes including details such as:
- Brand
- Model
- Price
- Steel
- Weight
- Overall length
- Blade length
- Blade width
- Blade grind
- Blade angle
- Scale material
- Purchase date
- Purchased from
- Legal to carry
- Lock
- Sold to
- Sold for
- Notes
Four appealing color themes are available.
Keep track of your knife collection and its value on the go and when meeting other collectors. Well organized and always available.
Add new knives with your own pictures and notes including details such as:
- Brand
- Model
- Price
- Steel
- Weight
- Overall length
- Blade length
- Blade width
- Blade grind
- Blade angle
- Scale material
- Purchase date
- Purchased from
- Legal to carry
- Lock
- Sold to
- Sold for
- Notes
Four appealing color themes are available.
App Specs
🔐 Own this app? Claim & verify MRR →💾 3 MB🔞 4+📱 iOS 8.0+🔖 v1.1🔄 updated 0d ago🌐 EN, DE📂 Productivity💰 Free
📅
What Worked™ · Development Pipeline
6 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-05
⭐
Rating ↓ 4.10 → 2.60 (dropped 1.50★)
2026-05
💲
Went paid — introduced $1.99 price point
2026-03
⭐
Rating ↑ 3.00 → 4.10 (improved 1.10★)
2026-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2022-10
⭐
Rating ↑ 1.00 → 3.00 (improved 2.00★)
2018-01
🚀
First tracked snapshot — initial data captured
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
More by Frederik Drosdzol
View all →📦 Portfolio summaryINDIE studio
2apps·$86/mocombined
⚠ Concentrated — top app contributes 100% of combined revenue (single-app dependency)
Similar apps in Productivity
About this analysis
Why low confidence: only 5 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Knife Collection is a early-stage iOS app in the productivity space with weak public traction — only 5 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Knife Collection make per month?▴
Low-confidence model estimate. Knife Collection has only 5 App Store ratings, so our revenue model has very little signal to work with — treat the ~$1.9K/mo figure as directional only, not a verified MRR. No founder-verified revenue data is available for this app. See methodology for the formula and confidence bands.
What apps are like Knife Collection?▴
Browse the full Productivity category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
Who makes Knife Collection?▴
Knife Collection is published by Frederik Drosdzol on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is Knife Collection's BU Score?▴
Knife Collection has a BU Score of 34/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.