How much does Sideline - Private 2nd Line make per month?

Based on our ML-calibrated revenue forecast, Sideline - Private 2nd Line earns approximately $18K/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 Sideline - Private 2nd Line?

Browse the full Utilities 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 Sideline - Private 2nd Line?

Sideline - Private 2nd Line is published by Pinger, Inc. 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 Sideline - Private 2nd Line's BU Score?

Sideline - Private 2nd Line 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.

Sideline - Private 2nd Line

Quality Score

Strong

Sideline - Private 2nd Line

Name: Sideline - Private 2nd Line — app revenue, audience, build cost & risk profile
Creator: bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Sideline - Private 2nd Line revenue, Sideline - Private 2nd Line app analytics, mobile app revenue estimate, Utilities revenue, iOS app revenue

High confidence

4.4 ✍️ Editor

✍️ bumetric analysis

“

Sideline - Private 2nd Line is an iOS app from Pinger, Inc. in the Utilities category, currently rated 4.4★ across 14,450 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 74: Strong (healthy traction). For a Utilities 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

$17.2K

per month

→

12-mo forecast

$17.8K – $37.2K

per month

→

24-mo forecast

$22.0K – $66.0K

per month

MID tierSUBSCRIPTION

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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

🤖Also on Android

Sideline: 2nd Phone Line App

$1.7K/mo · 62K ratings · 3.8★

View →

ONE-TIME · BUILD 💰 Estimated build cost

$75K

↳ What it cost to build · not monthly revenue

Likely range $55K – $100K

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

📈 Pays back in ~4 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 (185 MB)	+$40K
⚙ Utilities complexity ×0.85	$-13575

Total estimate $75K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$250K

↳ What it would sell for · not monthly revenue

Marketplace range $200K – $325K · 14× MRR multiple

💸 ~3.3× 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
🏷 Utilities category multiple	-10%

Final multiple 14× MRR

👥 Estimated audience size

2.9M

Lifetime downloads (US-equivalent)

Monthly active

570K

Daily active

110K

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

📲 Utilities engagement	~200 installs / rating
🔁 Utilities D30 retention	20%
📍 DAU / MAU stickiness	0.20

DAU / MAU 19% sticky

🔬

How we forecast this revenue

MEDIUM CONFIDENCE

Baseline

$17.2K/mo · ML-estimated from 234 triggers

Growth rate

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

Direction

Tailwinds: monetization model proven

Headwinds: review-mined risks present

6 months

$16.3K – $27.2K

12 months

$17.8K – $37.2K

24 months

$22.0K – $66.0K

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 TIERSUBSCRIPTIONunderperforming peers

Growth Velocity

5.0

Founder Strength

6.4

Product Quality

7.2

Revenue Strength

4.2

Monetization Maturity

9.5

Defensibility

8.5

Market Position

0.3

Operational Safety

1.5

💰 Revenue: Modest — $12K - $25K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.36★ across 14,450 reviews — solid.
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: dev shipping weekly.
⚠️ Risk: High — 2.8% refund mentions, 8% subscription complaints, scam/fraud mentions 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 12-22× monthly = $206K-$377K. Portfolio play ($54K/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

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 15 of 16 triggers

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

Mid install base (14,450 ratings)METRIC		+$5,500
Paid app ($0.00)METRIC		+$2,800
worth every pennyREVIEW		+$2,000
bugsREVIEW		−$1,800
5 starREVIEW		+$1,800
great valueREVIEW		+$1,600
cancelledREVIEW		−$1,500
excellent appREVIEW		+$1,500
Mature app (10y old)METRIC		+$1,500
highly recommendREVIEW		+$1,400
slowREVIEW		−$1,200
too expensiveREVIEW		−$1,000
support teamREVIEW		+$900
priceyREVIEW		−$800
Good rating (4.4★)METRIC		+$800

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 · vv13.19

Every Sideline update improves speed and reliability.

This release includes minor bug fixes and enhancements.

Thanks for using Sideline!

Profile & Insights

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

Identification

App name: Sideline - Private 2nd Line
Developer: Pinger, Inc.
Bundle ID: com.pinger.side.line
App Store URL: Open in App Store
Category: Utilities
Content rating: 12+
Languages: EN

Company

Website: Not found
Tagline: Stay private with a 2nd phone number
Description: The easiest way to organize your communication on one device.
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: $18.8K/mo
Top-grossing rank: 🇺🇸#24 /100
All-time revenue: Not found
Pricing: Not found

Founder

Name: Not found
X / Twitter: getindex.com
LinkedIn: linkedin.com/showcase/sideline-number
GitHub: Not found
X followers: Not found
Public statements: Not found

Funding

Funding data not yet collected for this app.

Press & Links

Press & Links data not yet collected for this app.

Contacts & Socials

Socials: facebook facebook.com/sidelineHQ · instagram instagram.com/sidelinehq · linkedin linkedin.com/showcase/sideline-number · twitter getindex.com · youtube youtube.com/c/Sidelinenumber
Email: support@sideline.com
Phone: Not found
Contact page: Not found
About page: Not found

📈Ratings growth14,450 ratings+32% lifetimeShow 3-year history estimate ▾

Tracked (44 weeks) Pre-tracking estimate (33 weeks) · model-based, ±5% noise · anchored to release date and current value

🗺️Geographic Distribution1 of 9 markets

🇺🇸

Top-grossing rank: #24 / 100

Other markets

Outside top 100
in US, GB, DE, FR, JP, CA, AU, BR, IN

This app currently ranks in only one of the 9 markets we monitor. Niche or regional apps often launch this way before global rollout. Rankings update daily.

📊Category Rank Trajectory#24 now · best #24 · worst #100

Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart

🚀Version Release Timeline3 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

Sideline gives you a second phone number for calling and texting—so you can stay connected without sharing your real number. Get the app today to keep your personal number private.

Whether you’re working, selling online, or just want more control over who can reach you, Sideline makes it easy to separate your personal communications from everything else.
Get a second phone number with an area code of your choice, send unlimited texts, and manage calls with powerful tools—all from one app.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

💾 185 MB🔞 12+📱 iOS 16.0+🔖 vv13.19🔄 updated 0d ago🌐 EN📂 Utilities💰 Paid

📅

What Worked™ · Development Pipeline

10 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

⭐

Rating ↑ 2.46 → 4.36 (improved 1.90★)

2026-05

📈

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

2026-03

⭐

Rating ↑ 2.46 → 4.50 (improved 2.04★)

2026-03

📈

Crossed 500 ratings — social-proof flywheel kicking in

2021-11

📈

Crossed 100 ratings — social-proof flywheel kicking in

2021-03

📈

Crossed 50 ratings — social-proof flywheel kicking in

2020-10

📈

Crossed 10 ratings — social-proof flywheel kicking in

2020-09

⭐

Rating ↑ 2.00 → 2.60 (improved 0.60★)

2020-09

⭐

Rating ↑ 1.00 → 2.00 (improved 1.00★)

2020-09

🚀

First tracked snapshot — initial data captured

🗣

Voice of Customer

Based on 500 reviews across 1 markets

● 49% positive · ● 5% neutral · ● 46% negative · Rating drift: -1.88★ (declining — recent 50: 2.48★ vs lifetime: 4.36★)

VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.

Top praise themes

phone number ×15 customer service ×13 second number ×12 second phone ×6 personal number ×6 calls texts ×5 having second ×5 call quality ×5

Top complaint themes

customer service ×39 phone number ×33 spam calls ×19 doesn work ×19 text messages ×13 business number ×11 phone calls ×9 second phone ×8

Risk signals

Refund mentions: 2.8% Subscription complaints: 8% Bug mentions: 4% Fraud / scam mentions: 2.8%

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📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for Sideline - Private 2nd Line: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →