BusyCal: Kalender & To-Dos
75
Quality Score
Strong
BusyCal: Kalender & To-Dos
Medium confidence
✍️ bumetric analysis
“
BusyCal: Kalender & To-Dos is an iOS app from Busy Apps FZE in the Productivity category, currently rated 4.7★ across 4,355 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
$10.9K
per month
→
12-mo forecast
$11.2K – $23.5K
per month
→
24-mo forecast
$13.9K – $41.8K
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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$80K
↳ What it cost to build · not monthly revenue
Likely range $60K – $110K
$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 (108 MB) | +$23K |
| ⚙ Productivity complexity ×1.10 | +$7K |
Total estimate
$80K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$500K
↳ What it would sell for · not monthly revenue
Marketplace range $400K – $700K · 18× MRR multiple
💸
~6.2× 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 ≥ 4.4 (solid) | +8% |
| 🏷 Productivity category multiple | +8% |
Final multiple
18× MRR
👥 Estimated audience size
325K
Lifetime downloads (US-equivalent)
Monthly active
97K
Daily active
43K
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
45% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$10.9K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Headwinds: review-mined risks present
6 months
$10.3K – $17.2K
12 months
$11.2K – $23.5K
24 months
$13.9K – $41.8K
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
Stalled · 39/100MID TIERFREE (NO MONETIZATION)no growth momentumGrowth Velocity
5.0
Founder Strength
5.5
Product Quality
6.9
Revenue Strength
4.0
Monetization Maturity
0.5
Defensibility
4.5
Market Position
2.0
Operational Safety
2.4
- 💰 Revenue: Modest — $7K - $16K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.69★ across 4,355 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: High — 2.1% refund mentions, 5% subscription complaints, bug mentions above category norm.
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $130K-$239K. Portfolio play ($30K/mo combined) commands premium. Discount applied for operational risk..
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 12 of 12 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 (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (4,355 ratings)METRIC | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Multilingual (10 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| support teamREVIEW | +$900 |
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 · v6.6.1
· [NEW] Export your calendars as CSV from Settings Export as CSV, to be used in spreadsheets or other apps.
· [NEW] Travel time in blocking events. A new Advanced preference lets time-blocking events on other calendars start earlier to cover an event's travel time.… Full release notes →
· [NEW] Travel time in blocking events. A new Advanced preference lets time-blocking events on other calendars start earlier to cover an event's travel time.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- BusyCal: Kalender & To-Dos
- Developer
- Busy Apps FZE
- Bundle ID
- com.busymac.BusyCaliOS
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- NL, EN, FR, DE, IT, JA, KO, PT, ZH, ES
Company
- Website
- Not found
- Tagline
- BusyCal
- Description
- BusyCal is a calendar app for Mac, iPhone, and iPad with natural language entry, smart filters, and unified iCloud, Google, Exchange, and CalDAV calendars.
- 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
- $30.4K/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
- Socials
- twitter twitter.com/busymac
- Not found
- Phone
- Not found
- Contact page
- busymac.com/busycontacts
- About page
- busymac.com/about
📈Ratings growth4,355 ratings+42% lifetimeShow 3-year history estimate ▾
Tracked (56 weeks) Pre-tracking estimate (36 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
BusyCal is a powerful, flexible and an extremely customizable calendar app for managing busy schedules, events and tasks.
BusyCal's unique features include natural language input, customizable calendar views, an integrated to do list, meeting scheduling, travel time, maps integration, tags, alarms, search, weather, moons, birthdays, anniversaries, graphics and more.… View full description on the official store →
BusyCal's unique features include natural language input, customizable calendar views, an integrated to do list, meeting scheduling, travel time, maps integration, tags, alarms, search, weather, moons, birthdays, anniversaries, graphics and more.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 108 MB🔞 4+📱 iOS 15.6+🔖 v6.6.1🔄 updated 0d ago🌐 NL, EN, FR, DE, IT +5📂 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 ↑ 3.65 → 4.50 (improved 0.85★)
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2017-09
📈
Crossed 100 ratings — social-proof flywheel kicking in
2016-11
📈
Crossed 50 ratings — social-proof flywheel kicking in
2016-06
📈
Crossed 10 ratings — social-proof flywheel kicking in
2016-06
⭐
Rating ↓ 2.00 → 1.67 (dropped 0.33★)
2016-06
🚀
First tracked snapshot — initial data captured
2016-06
⭐
Rating ↑ 1.00 → 2.00 (improved 1.00★)
🗣
Voice of Customer
Based on 699 reviews across 8 markets● 70% positive · ● 9% neutral · ● 21% negative · Rating drift: -0.75★ (declining — recent 50: 3.94★ vs lifetime: 4.69★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇮🇳 IN
+0.76
🇦🇺 AU
+0.61
🇬🇧 GB
+0.56
🇺🇸 US
+0.53
🇨🇦 CA
+0.44
🇫🇷 FR
+0.15
🇧🇷 BR
+0.02
🇩🇪 DE
-0.28
Top praise themes
month view ×34 apple watch ×27 apple calendar ×21 week view ×17 google calendar ×17 ios calendar ×16 ios version ×14 mac version ×12
Top complaint themes
ios version ×11 waste money ×9 google calendar ×9 specific password ×8 ios calendar ×8 apple calendar ×7 please fix ×6 icloud account ×6
Risk signals
Refund mentions: 2.1% Subscription complaints: 5% Bug mentions: 7%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.67516★ | 314 | 4.67516★ this version |
| 🇧🇷 BR | 4.58181★ | 55 | 4.58181★ this version |
| 🇨🇦 CA | 4.59855★ | 553 | 4.59855★ this version |
| 🇩🇪 DE | 4.49364★ | 1,100 | 4.49364★ this version |
| 🇫🇷 FR | 4.54603★ | 315 | 4.54603★ this version |
| 🇬🇧 GB | 4.53507★ | 613 | 4.53507★ this version |
| 🇮🇳 IN | 4.80488★ | 41 | 4.80488★ this version |
| 🇯🇵 JP | 4.43836★ | 219 | 4.43836★ this version |
| 🇺🇸 US | 4.68609★ | 4,393 | 4.68609★ this version |
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for BusyCal: Kalender & To-Dos: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Similar apps in Productivity
About this analysis
Why medium confidence: 4,355 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does BusyCal make per month?▴
Based on our ML-calibrated revenue forecast, BusyCal earns approximately $30K/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 BusyCal?▴
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 BusyCal?▴
BusyCal is published by Busy Apps FZE 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 BusyCal's BU Score?▴
BusyCal 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.