How much does Easy Calendar make per month?

Based on our ML-calibrated revenue forecast, Easy Calendar earns approximately $10K/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 Easy Calendar profitable?

With estimated build cost $150K and monthly revenue $10K, Easy Calendar looks break-even-grade — payback period sits around 1.2 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

How many users does Easy Calendar have?

Estimated audience: ~135K lifetime downloads, ~8K monthly active users, and ~3K 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 Easy Calendar?

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 Easy Calendar built with?

Our heuristic places Easy Calendar on the Native iOS (Swift / UIKit) stack (Medium confidence, 70%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.

Is Easy Calendar still actively maintained?

Maintenance status: Active (15% abandonment risk). Last shipped version was 3 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

How much would Easy Calendar sell for?

Estimated acquisition value: $225K (marketplace range $175K – $300K). 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 Easy Calendar last updated?

Easy Calendar last shipped a new version on 2026-06-25 — 3 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Who makes Easy Calendar?

Easy Calendar is published by Tom van Zummeren 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 Easy Calendar's BU Score?

Easy Calendar 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.

Easy Calendar

Quality Score

Strong

Easy Calendar

Name: Easy Calendar — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Easy Calendar revenue, Easy Calendar app analytics, mobile app revenue estimate, Productivity revenue, iOS app revenue

by Tom van Zummeren

Medium confidence

4.8 App Store rating

✍️ Bumetric analysis

“

Easy Calendar is an iOS app from Tom van Zummeren in the Productivity category, currently rated 4.8★ across 2,589 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

$10.4K

per month

→

12-mo forecast

$10.8K – $22.6K

per month

→

24-mo forecast

$13.4K – $40.1K

per month

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

Run free AI audit →

Typical impact: +2-5× organic installs

📊 Performance Tracking LIVE

123 snapshots on record

idle

Rating

4.8

Reviews

2,589 reviews

Forecast Revenue / mo

$10.4K

Snapshots tracked

123

since Feb 2013

ONE-TIME · BUILD 💰 Estimated build cost

$150K

↳ What it cost to build · not monthly revenue

Likely range $110K – $200K

$25K · MVP floor $100K · indie scale $500K+ · studio build

📈 Pays back in ~1.2y 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
⚙ 15.5y maintenance × ~1-person team	+$93K

Total estimate $150K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$225K

↳ What it would sell for · not monthly revenue

Marketplace range $175K – $300K · 22× MRR multiple

💸 ~1.5× 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
📅 15.5y proven track record	+20%
⭐ ★ rating ≥ 4.7 (premium)	+15%
🏷 Productivity category multiple	+8%

Final multiple 22× MRR

👥 Estimated audience size

135K

Lifetime downloads (US-equivalent)

Monthly active

8.1K

Daily active

3.6K

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
📅 15.5y of rating accumulation	-30%
🔁 Productivity D30 retention	30%
📍 DAU / MAU stickiness	0.45

DAU / MAU 44% sticky

🛠 Estimated tech stack

🍎

Native iOS (Swift / UIKit)

Medium confidence · 70%

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

📦 App bundle size	47 MB
🏷 Category context	Productivity
📦 Small-mid iOS bundle	→ Native Swift / UIKit (pre-2020 era)

💀 Maintenance status

Active

15%

Last shipped 2026-06-25 · 90 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

📅 90 days since last update

Healthy release cadence

Verdict Active

🔬

How we forecast this revenue

MEDIUM CONFIDENCE

Baseline

$10.4K/mo · ML-estimated from 234 triggers

Growth rate

+4.0% MoM · MID tier baseline (compound monthly)

6 months

$9.9K – $16.5K

12 months

$10.8K – $22.6K

24 months

$13.4K – $40.1K

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 · 53/100MID TIERunderperforming peers

Growth Velocity

5.0

Founder Strength

5.7

Product Quality

8.6

Revenue Strength

4.0

Monetization Maturity

1.0

Defensibility

6.0

Market Position

2.0

Operational Safety

10.0

💰 Revenue: Modest — $7K - $15K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.75★ across 2,589 reviews — strong (top 10%).
📍 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 = $187K-$334K. Portfolio play ($50K/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

MODEL

Revenue 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 ($1.99)METRIC		+$2,800
subscriptionREVIEW		+$2,500
Excellent rating (4.8★)METRIC		+$2,200
worth every pennyREVIEW		+$2,000
bugsREVIEW		−$1,800
5 starREVIEW		+$1,800
excellent appREVIEW		+$1,500
Low install base (2,589 ratings)METRIC		+$1,500
Mature app (15y old)METRIC		+$1,500
highly recommendREVIEW		+$1,400
free trialREVIEW		+$1,200
Localized (5 languages)METRIC		+$600

METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📥 Estimated Downloads / week

PROXY · ratings × 50/wk —

Industry-rule estimate (Sensor Tower / data.ai): one weekly install ≈ 50 new ratings. Solid points = tracked snapshots · faded line = pre-tracking model backfill.

📈 Reviews Growth

LIVE

Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE

Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY

Each bar shows a tracked update and the metric delta from the previous snapshot.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name: Easy Calendar
Developer: Tom van Zummeren
Bundle ID: com.tomvanzummeren.EasyCalendar
App Store URL: Open in App Store
Category: Productivity
Content rating: 4+
Languages: NL, EN, FR, DE, ES

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: $10.4K/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

Contacts & Socials data not yet collected for this app.

📈Ratings growth2,595 ratings+525% 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.

💰Pricing History$0.00 → $1.99 (+0%)

🚀Update Frequency · Releases per Quarter2 releases tracked

🚀Version Release Timeline2 releases tracked

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

Experience the ease of use of a weekly calendar in the palm of your hand! Designed around frequent tasks, Easy Calendar lets you create and edit events with just a few taps.

Automatically syncs with your current calendar.

Features
• Perfect overview of the week
• 100% integration with native iPhone calendar events
• Synchronization with iCloud, Outlook, Google Calendar, Hotmail and other CalDAV calendars using the native iPhone 
features
• Rotate your device to switch between one week and a three weeks view
• Month view for long-term planning and to quickly jump to another week… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

💾 47 MB🔞 4+📱 iOS 15.6+🔖 v4.10.22🔄 updated 3mo ago🌐 NL, EN, FR, DE, ES📂 Productivity💰 Paid🚀 Launched 2011 (15y old)

📅

What Worked™ · Development Pipeline

14 EVENTS TRACKED

Detected 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 →

2026-06

🔧

Shipped update — v4.10.17 → v4.10.22

→ 30 days after: revenue +$21.2K/mo · reviews +12 medium · co-occurring

2026-05

💲

Went paid — introduced $1.99 price point

→ 30 days after: reviews +10 medium · co-occurring

2026-03

📈

Crossed 1,000 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$25.6K/mo · rating +0.12★ · reviews +3,049 medium · co-occurring

2026-03

📈

Crossed 500 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$25.6K/mo · rating +0.12★ · reviews +3,049 medium · co-occurring

2013-07

📈

Crossed 100 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$378/mo · reviews +45 high confidence

2013-07

📈

Crossed 100 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$281/mo · reviews +34 high confidence

2013-05

📈

Crossed 50 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$126/mo · reviews +15 high confidence

2013-05

📈

Crossed 50 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$343/mo · rating +0.06★ · reviews +41 high confidence

2013-02

🚀

First tracked snapshot — initial data captured

→ 30 days after: revenue +$125/mo · rating +0.08★ · reviews +15 medium · co-occurring

2013-02

📈

Crossed 10 ratings — social-proof flywheel kicking in