Arbeitsschicht Kalender
75
Quality Score
Strong
Arbeitsschicht Kalender
by Luis Alberto Reyes Halaby
Medium confidence
✍️ Bumetric analysis
“
Arbeitsschicht Kalender is an iOS app from Luis Alberto Reyes Halaby in the Productivity category, currently rated 4.8★ across 2,216 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 75: 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
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID tierFREE
💡 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
94 snapshots on record
Rating
4.8
Reviews
2,216 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
94
since Sep 2020
ONE-TIME · BUILD
💰 Estimated build cost
$95K
↳ What it cost to build · not monthly revenue
Likely range $70K – $130K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~1.6y 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 |
| ⚙ 6.2y maintenance × ~1-person team | +$37K |
Total estimate
$95K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$100K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $150K · 22× MRR multiple
💸
~1.1× build cost (break-even+)
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 |
| 📅 6.2y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Productivity category multiple | +8% |
Final multiple
22× MRR
👥 Estimated audience size
115K
Lifetime downloads (US-equivalent)
Monthly active
25K
Daily active
11K
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 |
| 📅 6.2y of rating accumulation | -30% |
| 🔁 Productivity D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
43% sticky
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
High confidence · 80%
Also possible
Native iOS (Swift / UIKit)
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
| 📦 App bundle size | 17 MB |
| 🏷 Category context | Productivity |
| 📦 Compact iOS bundle | → Native SwiftUI (post-2020 era) |
💀 Maintenance status
Likely abandoned
88%
Last shipped 2024-05-15 · 863 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
| 📅 2y+ since last update | Likely abandoned |
Verdict
Likely abandoned
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Below median · 44/100MID TIERFREE (NO MONETIZATION)underperforming peersRevenue Strength
3.7
Product Quality
8.7
Market Position
2.0
Growth Velocity
5.0
Defensibility
3.5
Operational Safety
6.7
Founder Strength
5.4
Monetization Maturity
0.5
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.81★ across 2,216 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 863d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (863d 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 = $90K-$160K. Portfolio play ($26K/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 10 of 10 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.8★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (2,216 ratings)METRIC | +$1,500 | |
| Multilingual (18 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| annoying adsREVIEW | −$1,100 | |
| support teamREVIEW | +$900 | |
| Established app (6y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
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 · v0.7.2
- Bug fixes and improvements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Arbeitsschicht Kalender
- Developer
- Luis Alberto Reyes Halaby
- Bundle ID
- com.lrhsoft.shifterCalendar
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- SQ, BG, CS, DA, EN, FR, DE, EL, IT, NB, PL, PT, RO, RU, SR, SL, ES, TR
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
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $5.0K/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 growth2,451 ratings+1523% lifetimeShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (0 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.
📝 About this app
This app is designed for shift workers and people who need to organize their day to day basis and thus not to miss any appointments.
You can carry out an exhaustive control of your working day and your income quick and easily thanks to our statistics system.
SHIFTS
- Create fully configurable shifts.
- Add your workday, with option to include split shift and rest time. Keep track of your schedules.
- Enter your income, overtime and early exit. Set up earnings and control working time easily.… View full description on the official store →
You can carry out an exhaustive control of your working day and your income quick and easily thanks to our statistics system.
SHIFTS
- Create fully configurable shifts.
- Add your workday, with option to include split shift and rest time. Keep track of your schedules.
- Enter your income, overtime and early exit. Set up earnings and control working time easily.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 17 MB🔞 4+📱 iOS 13.0+🔖 v0.7.2🔄 updated 2y ago🌐 SQ, BG, CS, DA, EN +13📂 Productivity💰 Paid🚀 Launched 2020 (6y old)
📅
What Worked™ · Development Pipeline
11 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 →
2026-07
📸
Refreshed store screenshots — 3 of 3 updated
→ 30 days after: reviews +50 high confidence
2026-05
🔄
Monetization changed: freemium → free
→ 30 days after: reviews +118 high confidence
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$23.7K/mo · rating −0.05★ · reviews +3,214 high confidence
2022-11
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$59/mo · reviews +8 high confidence
2022-11
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$66/mo · reviews +9 high confidence
2021-11
📈
Crossed 50 ratings — social-proof flywheel kicking in
2021-11
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$52/mo · reviews +7 low · multiple changes
2020-12
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +0.12★ high confidence
2020-11
⭐
Rating ↓ 5.00 → 4.38 (dropped 0.62★)
→ 30 days after: rating +0.17★ medium · co-occurring
2020-11
⭐
Rating ↓ 4.80 → 4.17 (dropped 0.63★)
→ 30 days after: revenue +$57/mo · rating −0.45★ · reviews +8 medium · co-occurring
2020-09
🚀
First tracked snapshot — initial data captured
📸
Store Page History
3 SCREENSHOT CHANGESEvery time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.
iPad screenshots
Slot 5
2 ver.
2 ver.
2026-05-13
2026-07-01
iPhone screenshots
Slot 5
2 ver.
2 ver.
2026-05-13
2026-07-01
Slot 6
2 ver.
2 ver.
2026-05-13
2026-07-01
🗣
Voice of Customer
Based on 686 reviews across 9 markets● 70% positive · ● 27% neutral · ● 4% negative · Rating drift: -0.07★ (stable — recent 50: 4.74★ vs lifetime: 4.81★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇬🇧 GB
+0.63
🇦🇺 AU
+0.62
🇨🇦 CA
+0.61
🇺🇸 US
+0.57
🇮🇳 IN
+0.56
🇫🇷 FR
+0.17
🇩🇪 DE
+0.10
🇧🇷 BR
+0.03
🇯🇵 JP
+0.00
Top praise themes
work schedule ×28 keep track ×24 work shift ×15 muito bom ×15 track work ×12 user friendly ×11 helps keep ×9 highly recommend ×9
Top complaint themes
don work ×3 alarm ×6 calendar ×6 shift ×6 pro ×5 widgets ×5 after ×5 month ×5
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.81651★ | 2,518 | 4.81651★ this version |
| 🇬🇧 GB | 4.81506★ | 3,439 | 4.81506★ this version |
| 🇩🇪 DE | 4.70336★ | 4,052 | 4.70336★ this version |
| 🇫🇷 FR | 4.80625★ | 2,049 | 4.80625★ this version |
| 🇯🇵 JP | 4.75676★ | 37 | 4.75676★ this version |
| 🇨🇦 CA | 4.81773★ | 1,432 | 4.81773★ this version |
| 🇦🇺 AU | 4.75965★ | 803 | 4.75965★ this version |
| 🇧🇷 BR | 4.88411★ | 2,882 | 4.88411★ this version |
| 🇮🇳 IN | 4.60317★ | 504 | 4.60317★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Arbeitsschicht Kalender: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 2,216 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Arbeitsschicht Kalender make per month?▴
Based on our ML-calibrated revenue forecast, Arbeitsschicht Kalender earns approximately $5.0K/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 Arbeitsschicht Kalender profitable?▴
With estimated build cost $95K and monthly revenue $5.0K, Arbeitsschicht Kalender looks break-even-grade — payback period sits around 1.6 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Arbeitsschicht Kalender have?▴
Estimated audience: ~115K lifetime downloads, ~25K monthly active users, and ~11K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like Arbeitsschicht Kalender?▴
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.
What is Arbeitsschicht Kalender built with?▴
Our heuristic places Arbeitsschicht Kalender on the Native iOS (SwiftUI) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (Swift / UIKit).
Is Arbeitsschicht Kalender still actively maintained?▴
Maintenance status: Likely abandoned (88% abandonment risk). Last shipped version was 2+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Arbeitsschicht Kalender sell for?▴
Estimated acquisition value: $100K (marketplace range $75K – $150K). Calculated as 22× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was Arbeitsschicht Kalender last updated?▴
Arbeitsschicht Kalender last shipped a new version on 2024-05-15 — more than 2 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Arbeitsschicht Kalender?▴
Arbeitsschicht Kalender is published by Luis Alberto Reyes Halaby 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 Arbeitsschicht Kalender's BU Score?▴
Arbeitsschicht Kalender has a BU Score of 75/100 (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.