Elektronik ToolKit PRO
71
Quality Score
Strong
Elektronik ToolKit PRO
Medium confidence
✍️ bumetric analysis
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Elektronik ToolKit PRO is an iOS app from Thomas Gruber in the Productivity category, currently rated 4.8★ across 291 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 71: Strong (healthy traction). For a Productivity app, that means healthy traction. 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
$4.8K
per month
→
12-mo forecast
$4.2K – $15.2K
per month
→
24-mo forecast
$3.9K – $35.1K
per month
INDIE 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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$100K
↳ What it cost to build · not monthly revenue
Likely range $75K – $135K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~3 months 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 |
| 📦 Asset bundle (289 MB) | +$40K |
| ⚙ Productivity complexity ×1.10 | +$9K |
Total estimate
$100K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$700K
↳ What it would sell for · not monthly revenue
Marketplace range $500K – $900K · 17× MRR multiple
💸
~7.0× return on build cost
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 ≥ 4.7 (premium) | +15% |
| 🏷 Productivity category multiple | +8% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
17× MRR
👥 Estimated audience size
21K
Lifetime downloads (US-equivalent)
Monthly active
6.4K
Daily active
2.8K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 Productivity engagement | ~75 installs / rating |
| 🔁 Productivity D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
44% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$4.8K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
6 months
$4.1K – $9.6K
12 months
$4.2K – $15.2K
24 months
$3.9K – $35.1K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 48/100INDIE TIERexpected for tierRevenue Strength
3.7
Product Quality
6.8
Market Position
0.0
Growth Velocity
5.0
Defensibility
6.0
Operational Safety
10.0
Founder Strength
6.3
Monetization Maturity
1.0
- 💰 Revenue: Modest — $1K - $12K/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.85★ across 291 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 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 = $86K-$153K. Portfolio play ($39K/mo combined) commands premium.
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 8 of 8 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 (4.8★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (16y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Early-stage install base (291 ratings)METRIC | +$400 |
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 · v15.1.0
Ω Smaller fixes and optimisations
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Elektronik ToolKit PRO
- Developer
- Thomas Gruber
- Bundle ID
- at.tomgru.circuitcalc
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- EN, DE
Company
- Website
- Not found
- Tagline
- Electronics Engineering Apps. PRO. And More.
- Description
- Not found
- 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
- $38.9K/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.
📈Ratings growth291 ratings+1019% lifetimeShow 3-year history estimate ▾
Tracked (59 weeks) Pre-tracking estimate (34 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 → $9.99 (+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
This is the brand-new Electronics Engineering ToolKit PRO! The HIGHLY RATED and RECOMMENDED productivity app.
Users say it is the BEST and MOST PRACTICAL Electronics App in the whole iTunes App Store.
From an electronics enthusiast with a master's degree in Electronics Engineering. This App is for engineers, students and hobbyists and anyone interested in Electronics Engineering.
The App gets CONSTANT and POWERFUL improvements!
!!! This is a UNIVERSAL App - for iPhone and iPad !!! 100% PRO from the beginning without any In-App purchase!… View full description on the official store →
Users say it is the BEST and MOST PRACTICAL Electronics App in the whole iTunes App Store.
From an electronics enthusiast with a master's degree in Electronics Engineering. This App is for engineers, students and hobbyists and anyone interested in Electronics Engineering.
The App gets CONSTANT and POWERFUL improvements!
!!! This is a UNIVERSAL App - for iPhone and iPad !!! 100% PRO from the beginning without any In-App purchase!… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 289 MB🔞 4+📱 iOS 12.0+🔖 v15.1.0🔄 updated 0d ago🌐 EN, DE📂 Productivity💰 Paid
📅
What Worked™ · Development Pipeline
9 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
💲
Went paid — introduced $9.99 price point
2026-03
⭐
Rating ↑ 4.58 → 4.90 (improved 0.32★)
2026-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
2019-10
📈
Crossed 50 ratings — social-proof flywheel kicking in
2013-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2012-03
⭐
Rating ↑ 3.00 → 3.40 (improved 0.40★)
2011-10
⭐
Rating ↓ 3.67 → 3.00 (dropped 0.67★)
2011-03
⭐
Rating ↑ 2.00 → 3.50 (improved 1.50★)
2011-01
🚀
First tracked snapshot — initial data captured
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Elektronik ToolKit PRO: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Thomas Gruber
View all →📦 Portfolio summaryINDIE studio
3apps·$39K/mocombined
⚠ Concentrated — top app contributes 99% of combined revenue (single-app dependency)
Similar apps in Productivity
About this analysis
Why medium confidence: 291 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Elektronik ToolKit PRO make per month?▴
Based on our ML-calibrated revenue forecast, Elektronik ToolKit PRO earns approximately $38K/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.
What apps are like Elektronik ToolKit PRO?▴
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 Elektronik ToolKit PRO?▴
Elektronik ToolKit PRO is published by Thomas Gruber 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 Elektronik ToolKit PRO's BU Score?▴
Elektronik ToolKit PRO has a BU Score of 71/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.