Freedom Tube Bias Calculator L
54
Quality Score
Solid
✍️ Bumetric analysis
“
Freedom Tube Bias Calculator L is an Android app from Nikolaos Skampas in the Music & Audio category, currently rated 4.6★ across 44 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 54: Solid (established niche player). For a Music & Audio app, that means established niche player. 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
$181
per month
→
12-mo forecast
$91 – $845
per month
→
24-mo forecast
$91 – $2534
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
1 snapshots on record
Rating
4.6
Reviews
44 reviews
Forecast Revenue / mo
$181
Snapshots tracked
1
since Aug 2026
ONE-TIME · BUILD
💰 Estimated build cost
$170K
↳ What it cost to build · not monthly revenue
Likely range $130K – $230K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Slow ROI — current MRR is well below build cost
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 |
| ⚙ Music & Audio complexity ×1.45 | +$22K |
| 🌐 Cross-platform reach (iOS + Android) | +$40K |
| ⚙ 9.3y maintenance × ~1-person team | +$55K |
Total estimate
$170K
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
Also possible
Flutter
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 🏷 Category context | Music & Audio |
| 📦 Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2017-06-28 · 3396 days ago
0 · Active
50 · At risk
100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅 9y+ since last update | Likely abandoned |
| 👥 Small user base (44 ratings) + 9.3y old | +10% (solo-project pattern) |
Verdict
Likely abandoned
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$181/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
$115 – $461
12 months
$91 – $845
24 months
$91 – $2.5K
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 · 35/100MICRO TIERtoo early to scoreGrowth Velocity
5.0
Founder Strength
3.2
Product Quality
3.7
Revenue Strength
2.3
Monetization Maturity
1.0
Defensibility
5.8
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 4.6★ across 44 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 3396d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (3396d since update).
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $3K-$5K.
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 4 of 4 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 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Pre-traction phase (44 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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Freedom Tube Bias Calculator L
- Developer
- Nikolaos Skampas
- Bundle ID
- com.nikolaosskampas.freedomtubebiascalculatorlite
- App Store URL
- Open in App Store
- Category
- Music & Audio
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.youtube.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $182/mo
- Top-grossing rank
- Not found
- 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.
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
FTBC Lite (“Freedom Tube Bias Calculator Lite”) is definitely not your average tube bias calculator app. It has been designed to give you the freedom to set it and use it the way you want to. “Freedom” is the keyword here.
► Key features
★ Two calculation modes so you can calculate either the Bias % or the Plate Current at any given moment.
★ More than 30 available tube types to choose from and you still have the freedom to manually put your own Maximum Plate Dissipation value if you want to.… View full description on the official store →
► Key features
★ Two calculation modes so you can calculate either the Bias % or the Plate Current at any given moment.
★ More than 30 available tube types to choose from and you still have the freedom to manually put your own Maximum Plate Dissipation value if you want to.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.0.3🔄 updated 9y ago📂 Music & Audio💰 Free🚀 Launched 2017 (9y old)
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
More by Nikolaos Skampas
View all →📦 Portfolio summaryINDIE studio
2apps·$360/mocombined
Lead-app heavy — top app contributes 50%
About this analysis
Why low confidence: only 44 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
8 answers · auto-generated from this app's public dataHow much does Freedom Tube Bias Calculator L make per month?▴
Based on our ML-calibrated revenue forecast, Freedom Tube Bias Calculator L earns approximately $181/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
Is Freedom Tube Bias Calculator L profitable?▴
With estimated build cost $170K and monthly revenue $181, Freedom Tube Bias Calculator L looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like Freedom Tube Bias Calculator L?▴
Browse the full Music & Audio 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.
What is Freedom Tube Bias Calculator L built with?▴
Our heuristic places Freedom Tube Bias Calculator L on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Freedom Tube Bias Calculator L still actively maintained?▴
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 9+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was Freedom Tube Bias Calculator L last updated?▴
Freedom Tube Bias Calculator L last shipped a new version on 2017-06-28 — more than 9 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Freedom Tube Bias Calculator L?▴
Freedom Tube Bias Calculator L is published by Nikolaos Skampas on the Google Play 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 Freedom Tube Bias Calculator L's BU Score?▴
Freedom Tube Bias Calculator L has a BU Score of 54/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.