How much does Shift Calendar (since 2013) make per month?

Based on our ML-calibrated revenue forecast, Shift Calendar (since 2013) earns approximately $1.6K/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 Shift Calendar (since 2013)?

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 Shift Calendar (since 2013)?

Shift Calendar (since 2013) is published by Little Fox Studio on the Google Play 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 Shift Calendar (since 2013)'s BU Score?

Shift Calendar (since 2013) has a BU Score of 74/100 (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.

Shift Calendar (since 2013)

Quality Score

Strong

Shift Calendar (since 2013)

Name: Shift Calendar (since 2013) — app revenue, audience, build cost & risk profile
Creator: bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Shift Calendar (since 2013) revenue, Shift Calendar (since 2013) app analytics, mobile app revenue estimate, Productivity revenue, Android app revenue

High confidence

4.7 ✍️ Editor

✍️ bumetric analysis

“

Shift Calendar (since 2013) is an Android app from Little Fox Studio in the Productivity category, currently rated 4.7★ across 39,682 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 74: 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 tier

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Description hook & conversion structure
Screenshots, ratings, reviews strategy

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Typical impact: +2-5× organic installs

📊 Performance Tracking LIVE

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Rating

—

Reviews

—

Forecast Revenue / mo

—

Snapshots tracked

since first record

ONE-TIME · BUILD 💰 Estimated build cost

$100K

↳ What it cost to build · not monthly revenue

Likely range $75K – $135K

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

📈 Slow ROI — current MRR is well below build cost

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
💎 In-app purchase plumbing	+$9K
⚙ Productivity complexity ×1.10	+$5K
🌐 Cross-platform reach (iOS + Android)	+$35K

Total estimate $100K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$50K

↳ What it would sell for · not monthly revenue

Marketplace range $40K – $75K · 33× MRR multiple

💸 ~0.5× build cost (under-water)

Synthetic estimate. Multiple band derived from iap / freemium model + 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

💎 IAP / freemium model base	28× MRR
⭐ ★ rating ≥ 4.4 (solid)	+8%
🏷 Productivity category multiple	+8%

Final multiple 33× MRR

👥 Estimated audience size

3.0M

Lifetime downloads (US-equivalent)

Monthly active

885K

Daily active

395K

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 CONFIDENCE

Baseline

$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 · 57/100MID TIERcompetitive build-out

Growth Velocity

5.0

Founder Strength

5.0

Product Quality

9.3

Revenue Strength

3.7

Monetization Maturity

5.0

Defensibility

8.5

Market Position

0.0

Operational Safety

9.0

💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.65★ across 39,682 reviews — exceptional (top 1% in category).
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: last update 265d 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.

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 4 of 4 triggers

Our ML model uses 200+ signals from public data. These are the most influential for this app:

Mid install base (39,682 ratings)METRIC		+$5,500
Excellent rating (4.7★)METRIC		+$2,200
Mature app (13y old)METRIC		+$1,500
Ad-supported / freemiumMETRIC		+$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: Shift Calendar (since 2013)
Developer: Little Fox Studio
Bundle ID: lincyu.shifttable
App Store URL: Open in App Store
Category: Productivity
Content rating: Not found
Languages: Not found

Company

Website: shiftcalendaronlinemanual.appspot.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: $1.6K/mo
Top-grossing rank: Not found
All-time revenue: Not found
Pricing: $0.99 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 growth39,682 ratings+20% lifetimeShow 3-year history estimate ▾

Tracked (2 weeks) Pre-tracking estimate (37 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.

📝 About this app

This app is designed for all hard-working shift workers. You can add customized shifts.

<p></p> When editing your shifts, you can select a range of days (rather than one day) to set. Thus, you can set your schedule (roster, planner) in few seconds. Then, you can send the screenshot of your calendar to friends by clicking one button.

<p></p>

If you have any suggestion/question, welcome to send an email to me. E-mail: kigurumi.shia@gmail.com

Developer: Chih-Yu Lin

<p></p>

<p></p> Permission Description:… View full description on the official store →

App Specs

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🔖 vVaries with device🔄 updated 0d ago📂 Productivity💰 Free📺 Ad-supported💎 IAP $0.99 per item

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📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for Shift Calendar (since 2013): category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →