61
Quality Score
Solid
Roster-Calendar
✍️ bumetric analysis
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Roster-Calendar is an Android app from Michael Heinz in the Business category, currently rated 4.1★ across 7,155 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 61: Solid (established niche player). For a Business 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.
💰 Revenue · today and ahead
Today
$5.0K/mo
In 12 months
$5.2K – $10.8K
In 24 months
$6.4K – $19.2K
MID 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
🔬
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
Building · 55/100MID TIERcompetitive build-outRevenue Strength
3.7
Product Quality
7.5
Market Position
0.0
Growth Velocity
5.0
Defensibility
8.5
Operational Safety
9.0
Founder Strength
5.5
Monetization Maturity
5.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.14★ across 7,155 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 230d ago — slow cadence.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Strong subscription moat. Hard to outcompete on retention. Better angle: free alternative with one-time purchase, or feature parity for an underserved sub-niche.
💵 For acquirers: Estimated asking range 18-32× monthly = $90K-$160K.
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.
🧪
Tech & Domain Intel — lifegrit.com
- Mail provider
- Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
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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:
| Low install base (7,155 ratings)METRIC | +$1,500 | |
| Mature app (12y old)METRIC | +$1,500 | |
| Good rating (4.1★)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.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 vVaries with device🔄 updated 7mo ago📂 Business💰 Free📺 Ad-supported💎 IAP $1.49 - $5.99 per item🚀 Launched 2013 (12y old)
📝 About this app
Just choose your shift, morning, regular or late and tap the corresponding day. You can define work times, colors, names and many more to fit your needs. With our unique app you can create your whole shift pattern in less than a minute. No app can beat this.
Unique features:
- scroll calendar
- Free editable templates
- Single tap to add or delete calendar entries
- Double tap to switch shift entries
- additional entries in shift calendar for second shift (double shift)
- Choose work times, names, colors and more
- Option to add notes to any calendar day… View full description on the official store →
Unique features:
- scroll calendar
- Free editable templates
- Single tap to add or delete calendar entries
- Double tap to switch shift entries
- additional entries in shift calendar for second shift (double shift)
- Choose work times, names, colors and more
- Option to add notes to any calendar day… View full description on the official store →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Roster-Calendar
- Developer
- Michael Heinz
- Bundle ID
- de.heinz.roster
- App Store URL
- Open in App Store
- Category
- Business
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.lifegrit.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $833/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $1.49 - $5.99 per item
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 growth7,155 ratings+34% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
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.
More by Michael Heinz
View all →📦 Portfolio summaryINDIE studio
4apps·$6K/mocombined
⚠ Concentrated — top app contributes 81% of combined revenue (single-app dependency)
Similar apps in Business
Full revenue analysis
Read the article-style breakdown for Roster-Calendar: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.