How much does Notify Keeper make per month?

Based on our ML-calibrated revenue forecast, Notify Keeper earns approximately $500/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.

Is Notify Keeper profitable?

With estimated build cost $145K and monthly revenue $500, Notify Keeper looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

How many users does Notify Keeper have?

Estimated audience: ~5K lifetime downloads, ~1K monthly active users, and ~490 daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.

What apps are like Notify Keeper?

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.

What is Notify Keeper built with?

Our heuristic places Notify Keeper on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.

Is Notify Keeper still actively maintained?

Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 3+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

How much would Notify Keeper sell for?

Estimated acquisition value: $15K (marketplace range $10K – $20K). Calculated as 27× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.

When was Notify Keeper last updated?

Notify Keeper last shipped a new version on 2023-09-28 — more than 3 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Who makes Notify Keeper?

Notify Keeper is published by Denis Shulzhenko 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 Notify Keeper's BU Score?

Notify Keeper has a BU Score of 40/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.

Notify Keeper

Quality Score

Emerging

Notify Keeper

Name: Notify Keeper — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Notify Keeper revenue, Notify Keeper app analytics, mobile app revenue estimate, Productivity revenue, Android app revenue

by Denis Shulzhenko

Medium confidence

3.0 Google Play rating

✍️ Bumetric analysis

“

Notify Keeper is an Android app from Denis Shulzhenko in the Productivity category, currently rated 3.0★ across 105 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 40: Emerging (early traction worth watching). For a Productivity app, that means early traction worth watching. 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

$500

per month

→

12-mo forecast

$437 – $1575

per month

→

24-mo forecast

$405 – $3644

per month

INDIE 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

1 snapshots on record

idle

Rating

3.0

Reviews

105 reviews

Forecast Revenue / mo

$500

Snapshots tracked

since Jul 2026

ONE-TIME · BUILD 💰 Estimated build cost

$145K

↳ What it cost to build · not monthly revenue

Likely range $110K – $195K

$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
⚙ 7.3y maintenance × ~1-person team	+$43K

Total estimate $145K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$15K

↳ What it would sell for · not monthly revenue

Marketplace range $10K – $20K · 27× MRR multiple

💸 ~0.1× 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
📅 7.3y proven track record	+20%
⭐ ★ rating < 3.5 (weak)	-18%
🏷 Productivity category multiple	+8%
⭐ Small user base (<1K ratings)	-8%

Final multiple 27× MRR

👥 Estimated audience size

5.5K

Lifetime downloads (US-equivalent)

Monthly active

1.1K

Daily active

490

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
📅 7.3y of rating accumulation	-30%
🔁 Productivity D30 retention	30%
📍 DAU / MAU stickiness	0.45

DAU / MAU 45% sticky

🛠 Estimated tech stack

🤖

Native Android (Kotlin)

High confidence · 80%

Also possible

Flutter

Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.

Signals we read

🏷 Category context	Productivity
📦 Compact Android bundle	→ Native Kotlin

💀 Maintenance status

Likely abandoned

95%

Last shipped 2023-09-28 · 1137 days ago

0 · Active 50 · At risk 100 · Abandoned

Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.

Risk signals

📅 3y+ since last update	Likely abandoned
👥 Small user base (105 ratings) + 7.3y old	+10% (solo-project pattern)

Verdict Likely abandoned

🔬

How we forecast this revenue

LOW CONFIDENCE

Baseline

$500/mo · ML-estimated from 234 triggers

Growth rate

+6.0% MoM · INDIE tier baseline (compound monthly)

6 months

$426 – $993

12 months

$437 – $1.6K

24 months

$405 – $3.6K

Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.

📊

BU Investment Matrix

Pre-traction · 37/100INDIE TIERlimited signal

Revenue Strength

2.7

Product Quality

4.2

Market Position

0.0

Growth Velocity

5.0

Defensibility

6.3

Operational Safety

5.0

Founder Strength

2.5

Monetization Maturity

4.0

💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
⭐ Quality: 3.0★ across 105 reviews — weak — significant quality concerns.
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: ⚠ last update 1137d ago — possibly dormant.
⚠️ Risk: Elevated — dormant (1137d since update).

🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.

💵 For acquirers: Estimated asking range 18-32× monthly = $9K-$16K.

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:

Below-average rating (3.0★)METRIC		−$1,500
Established app (7y old)METRIC		+$800
Ad-supported / freemiumMETRIC		+$600
Early-stage install base (105 ratings)METRIC		+$400

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: Notify Keeper
Developer: Denis Shulzhenko
Bundle ID: com.rb.notifykeeper
App Store URL: Open in App Store
Category: Productivity
Content rating: Not found
Languages: Not found

Company

Website: Not found
Tagline: Not found
Description: Not found
Founded: Not found
HQ / Address: Not found
Employees: Not found
Logo: Not found

Revenue

Reported revenue signal / mo: Not found
AI revenue estimate / mo: Not found
AI annual estimate: Not found
Model estimate / mo: $500/mo
Top-grossing rank: Not found
All-time revenue: Not found
Pricing: $0.99 - $12.99 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.

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

🔔 Notify Keeper is an application for storing all incoming notifications in one place 🗃. Notifications are saved in their entirety, including messages ✉, images 🖼, and action buttons ⏯.

Features:

✔ 💾 Saving notifications

✔ 🚫 Blocking notifications

✔ 🔎 Searching saved notifications

✔ 🎵 Playback control ⏯ (if supported by the player)

✔ ✉ Saving messages

✔ 📨 Sending messages (chat mode or "Reply" button, if supported by the messenger)

✔ Various notification display modes: list, group, chat

✔ 🖼 Saving images

✔ 📔 Create notes in the status bar

✔ 🌑 Dark theme… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 v4.4.9🔄 updated 3y ago📂 Productivity💰 Free💎 IAP $0.99 - $12.99 per item🚀 Launched 2019 (7y old)

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

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

Read deep-dive →