How much does GW Mailbox make per month?

Based on our ML-calibrated revenue forecast, GW Mailbox earns approximately $4.7K/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 GW Mailbox?

Browse the full Business 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 GW Mailbox?

GW Mailbox is published by Ghost Pattern Software 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 GW Mailbox's BU Score?

GW Mailbox has a BU Score of 66/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.

GW Mailbox

Quality Score

Solid

GW Mailbox

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

Medium confidence

4.4 ✍️ Editor

✍️ bumetric analysis

“

GW Mailbox is an iOS app from Ghost Pattern Software in the Business category, currently rated 4.4★ across 2,167 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 66: Solid (established niche player). For a Business app, that means established niche player. 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

$5.8K

per month

→

12-mo forecast

$6.0K – $12.5K

per month

→

24-mo forecast

$7.4K – $22.3K

per month

MID tier

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Description hook & conversion structure
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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

$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 ~1.3y 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
⚙ Business complexity ×1.50	+$25K

Total estimate $75K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$75K

↳ What it would sell for · not monthly revenue

Marketplace range $75K – $100K · 18× MRR multiple

💸 ~1.0× 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
⭐ ★ rating ≥ 4.4 (solid)	+8%
🏷 Business category multiple	+10%

Final multiple 18× MRR

👥 Estimated audience size

140K

Lifetime downloads (US-equivalent)

Monthly active

30K

Daily active

9.1K

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

📲 Business engagement	~65 installs / rating
🔁 Business D30 retention	22%
📍 DAU / MAU stickiness	0.30

DAU / MAU 30% sticky

🔬

How we forecast this revenue

MEDIUM CONFIDENCE

Baseline

$5.8K/mo · ML-estimated from 234 triggers

Growth rate

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

6 months

$5.5K – $9.2K

12 months

$6.0K – $12.5K

24 months

$7.4K – $22.3K

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 · 51/100MID TIERunderperforming peers

Growth Velocity

5.0

Founder Strength

5.9

Product Quality

7.9

Revenue Strength

3.8

Monetization Maturity

1.0

Defensibility

6.0

Market Position

2.0

Operational Safety

9.0

💰 Revenue: Modest — $4K - $8K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.4★ across 2,167 reviews — strong (top 10%).
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: last update 225d ago — slow cadence.
⚠️ 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 = $104K-$185K. Portfolio play ($17K/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 10 of 10 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
bugsREVIEW		−$1,800
excellent appREVIEW		+$1,500
Low install base (2,167 ratings)METRIC		+$1,500
Mature app (11y old)METRIC		+$1,500
highly recommendREVIEW		+$1,400
slowREVIEW		−$1,200
support teamREVIEW		+$900
Good rating (4.4★)METRIC		+$800
Localized (6 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 · v10.11

Fixes attaching files to a sending email
Fixes sending html format email
Fixes loading email body images on newer versions of GroupWise
Fixes loading mailbox after unlock from FaceID
Other bug fixes

Profile & Insights

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

Identification

App name: GW Mailbox
Developer: Ghost Pattern Software
Bundle ID: com.ghostpattern.GWMail2
App Store URL: Open in App Store
Category: Business
Content rating: 4+
Languages: NL, EN, FR, DE, ES, SV

Company

Website: Not found
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: $4.7K/mo
Top-grossing rank: Outside top 100 in US Business
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 growth2,167 ratings+1580% lifetimeShow 3-year history estimate ▾

Tracked (58 weeks) Pre-tracking estimate (37 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.

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

GW Mailbox is a GroupWise email and calendar app for the iPhone and iPad. With this app you get a much better interface than Novell delivers by default through GroupWise WebAccess. This app gives you some of the enterprise features that you wouldn't get with simple POP/IMAP - like access to your Frequent Contacts and GroupWise address book.

This app is designed to work with a Novell GroupWise email server. Novell GroupWise is an email server like Lotus Notes or Microsoft Exchange. If you do not have access to a Novell GroupWise email account, this app will not work for you.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

💾 12 MB🔞 4+📱 iOS 15.0+🔖 v10.11🔄 updated 0d ago🌐 NL, EN, FR, DE, ES +1📂 Business💰 Paid

📅

What Worked™ · Development Pipeline

12 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 ↑ 3.97 → 4.40 (improved 0.43★)

2026-05

📈

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

2026-05

🔄

Monetization changed: paid → free

2026-03

⭐

Rating ↑ 2.87 → 3.97 (improved 1.10★)

2026-03

📈

Crossed 500 ratings — social-proof flywheel kicking in

2015-09

📈

Crossed 100 ratings — social-proof flywheel kicking in

2014-12

📈

Crossed 50 ratings — social-proof flywheel kicking in

2014-07

📈

Crossed 10 ratings — social-proof flywheel kicking in

2014-07

⭐

Rating ↑ 2.00 → 2.38 (improved 0.38★)

2014-06

⭐

Rating ↑ 2.50 → 3.00 (improved 0.50★)

2014-06

⭐

Rating ↓ 4.00 → 2.50 (dropped 1.50★)

2014-06

🚀

First tracked snapshot — initial data captured

🌍

Multi-Country Performance

Available in 8 of 9 monitored markets

Market	Rating	Reviews	Current version
🇦🇺 AU	4.26471★	34	4.26471★ this version
🇧🇷 BR	4.23529★	34	4.23529★ this version
🇨🇦 CA	4.18133★	375	4.18133★ this version
🇩🇪 DE	3.96537★	722	3.96537★ this version
🇫🇷 FR	4.09091★	33	4.09091★ this version
🇬🇧 GB	4.06154★	65	4.06154★ this version
🇮🇳 IN	5★	2	5★ this version
🇺🇸 US	4.39409★	2,167	4.39409★ this version

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

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

Read deep-dive →