How much does Calzy make per month?

Based on our ML-calibrated revenue forecast, Calzy earns approximately $21K/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 Calzy?

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.

Calzy is published by Raja V 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 Calzy's BU Score?

Calzy has a BU Score of 73/100 (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.

Calzy

Quality Score

Strong

Calzy

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

Medium confidence

4.7 ✍️ Editor

✍️ bumetric analysis

“

Calzy is an iOS app from Raja V in the Productivity category, currently rated 4.7★ across 1,853 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 73: 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

$1.5M

per month

→

12-mo forecast

$1.6M – $2.4M

per month

→

24-mo forecast

$1.9M – $3.5M

per month

BIG tier

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Typical impact: +2-5× organic installs

📊 Performance Tracking LIVE

Loading…

idle

Rating

—

Reviews

—

Forecast Revenue / mo

—

Snapshots tracked

since first record

ONE-TIME · BUILD 💰 Estimated build cost

$65K

↳ What it cost to build · not monthly revenue

Likely range $50K – $90K

$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 (72 MB)	+$8K
⚙ Productivity complexity ×1.10	+$5K

Total estimate $65K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$400K

↳ What it would sell for · not monthly revenue

Marketplace range $300K – $500K · 19× 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 ≥ 4.7 (premium)	+15%
🏷 Productivity category multiple	+8%

Final multiple 19× MRR

👥 Estimated audience size

135K

Lifetime downloads (US-equivalent)

Monthly active

40K

Daily active

18K

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 CONFIDENCE

Baseline

$1.5M/mo · ML-estimated from 234 triggers

Growth rate

+2.5% MoM · BIG tier baseline (compound monthly)

6 months

$1.5M – $2.0M

12 months

$1.6M – $2.4M

24 months

$1.9M – $3.5M

Compound growth at +2.5% MoM (tier baseline for BIG). Range widens with horizon — typical noise band ±15% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.

📊

BU Investment Matrix

Mixed signals · 59/100BIG TIERcompetitive but cautious

Growth Velocity

5.0

Founder Strength

7.4

Product Quality

8.5

Revenue Strength

6.2

Monetization Maturity

1.0

Defensibility

7.5

Market Position

2.0

Operational Safety

10.0

💰 Revenue: Healthy — $600K - $3300K/mo · BIG tier · medium-low confidence, trajectory unclear.
⭐ Quality: 4.71★ across 1,853 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 = $27.0M-$48.0M.

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 11 of 11 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 (1,853 ratings)METRIC		+$1,500
Mature app (13y old)METRIC		+$1,500
highly recommendREVIEW		+$1,400
slowREVIEW		−$1,200
Localized (7 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.

🆕 What's New · v3.11

Calzy's latest update brings full integration with iOS 26, iPadOS 26, and watchOS 26, enhancing your calculation experience.

iPhone & iPad
- Ability to add a Custom Action for quick execution.
- Ability to change the region setting inside the app.… Full release notes →

Profile & Insights

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

Identification

App name: Calzy
Developer: Raja V
Bundle ID: com.waplestuff.calzy
App Store URL: Open in App Store
Category: Productivity
Content rating: 4+
Languages: EN, FR, DE, IT, JA, RU, ZH

Company

Website: Not found
Tagline: Calzy
Description: Calzy is a beautiful iPhone/iPad calculator for your everyday use. It helps you perform your day to day mathemetical calculation in a more elegant way. It also lets you save your frequently used expression and use it back. It is simple, straight forward and modern. And It looks gorgeous on your iPhone and iPad.
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: $22.0K/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 growth1,853 ratings+38% lifetimeShow 3-year history estimate ▾

Tracked (58 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 → $2.99 (+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

Make your day-to-day calculations quick, easy, and beautiful with Calzy. Whether you're a student, professional, or just looking for a better way to manage your everyday math, Calzy is the perfect solution. With its advanced features and gorgeous design, Calzy will quickly become your go-to calculator.

One of its standout features is the "Memory Area," where you can store and easily reuse multiple numerical values with just a drag and drop. Another one is the bookmarking feature, allowing you to save any calculation with a title for future reference.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

💾 72 MB🔞 4+📱 iOS 26.0+🔖 v3.11🔄 updated 0d ago🌐 EN, FR, DE, IT, JA +2📂 Productivity💰 Paid

📅

What Worked™ · Development Pipeline

9 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 →

2026-05

💲

Went paid — introduced $2.99 price point

2026-03

⭐

Rating ↑ 4.05 → 4.60 (improved 0.55★)

2026-03

📈

Crossed 500 ratings — social-proof flywheel kicking in

2018-10

📈

Crossed 100 ratings — social-proof flywheel kicking in

2014-11

📈

Crossed 50 ratings — social-proof flywheel kicking in

2013-05

⭐

Rating ↓ 4.22 → 3.90 (dropped 0.32★)

2013-05

📈

Crossed 10 ratings — social-proof flywheel kicking in

2013-04

⭐

Rating ↓ 5.00 → 4.00 (dropped 1.00★)

2013-04

🚀

First tracked snapshot — initial data captured

🌍

Multi-Country Performance

Available in 9 of 9 monitored markets

Market	Rating	Reviews	Current version
🇦🇺 AU	4.71795★	78	4.71795★ this version
🇧🇷 BR	4.81159★	69	4.81159★ this version
🇨🇦 CA	4.75713★	210	4.75713★ this version
🇩🇪 DE	4.64964★	274	4.64964★ this version
🇫🇷 FR	4.76033★	121	4.76033★ this version
🇬🇧 GB	4.77515★	169	4.77515★ this version
🇮🇳 IN	4.73707★	232	4.73707★ this version
🇯🇵 JP	4.66265★	332	4.66265★ this version
🇺🇸 US	4.70726★	1,872	4.70726★ this version

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for Calzy: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →