How much does Buttocks and Legs In 21 Days make per month?

Based on our ML-calibrated revenue forecast, Buttocks and Legs In 21 Days earns approximately $1.5K/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 Buttocks and Legs In 21 Days?

Browse the full Health & Fitness 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 Buttocks and Legs In 21 Days?

Buttocks and Legs In 21 Days is published by Fit apps 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 Buttocks and Legs In 21 Days's BU Score?

Buttocks and Legs In 21 Days 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.

Buttocks and Legs In 21 Days

Quality Score

Strong

Buttocks and Legs In 21 Days

Name: Buttocks and Legs In 21 Days — app revenue, audience, build cost & risk profile
Creator: bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Buttocks and Legs In 21 Days revenue, Buttocks and Legs In 21 Days app analytics, mobile app revenue estimate, Health & Fitness revenue, Android app revenue

by Fit apps

High confidence

4.6 ✍️ Editor

✍️ bumetric analysis

“

Buttocks and Legs In 21 Days is an Android app from Fit apps in the Health & Fitness category, currently rated 4.6★ across 38,001 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 73: Strong (healthy traction). For a Health & Fitness 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

$1.2M

per month

→

12-mo forecast

$1.3M – $2.0M

per month

→

24-mo forecast

$1.5M – $2.8M

per month

BIG tier

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Title & subtitle keyword fit
Description hook & conversion structure
Screenshots, ratings, reviews strategy

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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

$130K

↳ What it cost to build · not monthly revenue

Likely range $100K – $175K

$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
⚙ Health & Fitness complexity ×1.40	+$23K
🌐 Cross-platform reach (iOS + Android)	+$45K

Total estimate $130K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$50K

↳ What it would sell for · not monthly revenue

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

💸 ~0.4× 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%
🏷 Health & Fitness category multiple	+10%

Final multiple 33× MRR

👥 Estimated audience size

2.6M

Lifetime downloads (US-equivalent)

Monthly active

580K

Daily active

200K

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

📲 Health & Fitness engagement	~70 installs / rating
🔁 Health & Fitness D30 retention	22%
📍 DAU / MAU stickiness	0.35

DAU / MAU 34% sticky

🔬

How we forecast this revenue

MEDIUM CONFIDENCE

Baseline

$1.2M/mo · ML-estimated from 234 triggers

Growth rate

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

6 months

$1.2M – $1.6M

12 months

$1.3M – $2.0M

24 months

$1.5M – $2.8M

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

Revenue Strength

6.1

Product Quality

9.1

Market Position

0.0

Growth Velocity

5.0

Defensibility

9.8

Operational Safety

7.0

Founder Strength

5.5

Monetization Maturity

5.0

💰 Revenue: Healthy — $480K - $2640K/mo · BIG tier · medium-low confidence, trajectory unclear.
⭐ Quality: 4.56★ across 38,001 reviews — exceptional (top 1% in category).
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: ⚠ last update 522d ago — possibly dormant.
⚠️ Risk: Moderate — dormant (522d since update).

🎯 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 = $21.6M-$38.4M.

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 (38,001 ratings)METRIC		+$5,500
Excellent rating (4.6★)METRIC		+$2,200
Mature app (8y 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: Buttocks and Legs In 21 Days
Developer: Fit apps
Bundle ID: ru.disav.legsandbuttocksworkout
App Store URL: Open in App Store
Category: Health & Fitness
Content rating: Not found
Languages: Not found

Company

Website: fit-apps.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: $172/mo
Top-grossing rank: Not found
All-time revenue: Not found
Pricing: $1.49 - $23.99 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 growth38,001 ratings+39% lifetimeShow 3-year history estimate ▾

Tracked (3 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.

📝 About this app

Buttocks and legs 21 day challenge  - Butt and Legs exercises

This application is ideal for those  who want to lose cellulite, feel the body tonus and be in good shape.Trainings consist of 24 different butt exercises, legs exercises, glutes exercises, which can be done at home without taking much time.

All programs have been elaborated by professional fitness coaches and divided into two levels of difficulty:

- Beginner - for people who are new to physical activities.

- Advanced - for experienced ready to tests themselves.

- Hard - for experienced athletes ready to tests themselves.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 v4.0.0.0🔄 updated 0d ago📂 Health & Fitness💰 Free📺 Ad-supported💎 IAP $1.49 - $23.99 per item

📅

What Worked™ · Development Pipeline

2 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

📸

Refreshed store screenshots — 4 of 4 updated

→ 30 days after: reviews −18 high confidence

2026-05

🚀

First tracked snapshot — initial data captured

→ 30 days after: reviews −10 high confidence

📸

Store Page History

4 SCREENSHOT CHANGES

Every time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.

iPhone screenshots

Slot 1
2 ver.

2026-05-08

Now

2026-06-12

Slot 2
2 ver.

2026-05-08

Now

2026-06-12

Slot 3
2 ver.

2026-05-08

Now

2026-06-12

Slot 4
2 ver.

2026-05-08

Now

2026-06-12

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for Buttocks and Legs In 21 Days: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →