How much does Kisi make per month?

Based on our ML-calibrated revenue forecast, Kisi earns approximately $5.0K/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.

With estimated build cost $155K and monthly revenue $5.0K, Kisi looks break-even-grade — payback period sits around 2.6 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

How many users does Kisi have?

Estimated audience: ~940K lifetime downloads, ~69K monthly active users, and ~20K 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 Kisi?

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.

What is Kisi built with?

Our heuristic places Kisi on the Native iOS (Swift / UIKit) stack (Medium confidence, 70%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.

Is Kisi still actively maintained?

Maintenance status: Slowing (30% abandonment risk). Last shipped version was 3 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

How much would Kisi sell for?

Estimated acquisition value: $125K (marketplace range $75K – $150K). Calculated as 23× 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 Kisi last updated?

Kisi last shipped a new version on 2026-06-04 — 3 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Kisi is published by KISI Incorporated 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 Kisi's BU Score?

Kisi 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.

Kisi

Quality Score

Strong

Kisi

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

by KISI Incorporated

High confidence

4.8 App Store rating

✍️ Bumetric analysis

“

Kisi is an iOS app from KISI Incorporated in the Business category, currently rated 4.8★ across 20,747 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 Business 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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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

113 snapshots on record

idle

Rating

4.8

Reviews

20,747 reviews

Forecast Revenue / mo

$5.0K

Snapshots tracked

113

since Apr 2015

ONE-TIME · BUILD 💰 Estimated build cost

$155K

↳ What it cost to build · not monthly revenue

Likely range $115K – $210K

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

📈 Pays back in ~2.6y 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
⚙ 13.1y maintenance × ~1-person team	+$78K

Total estimate $155K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$125K

↳ What it would sell for · not monthly revenue

Marketplace range $75K – $150K · 23× MRR multiple

💸 ~0.8× build cost (under-water)

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
📅 13.1y proven track record	+20%
⭐ ★ rating ≥ 4.7 (premium)	+15%
🏷 Business category multiple	+10%

Final multiple 23× MRR

👥 Estimated audience size

940K

Lifetime downloads (US-equivalent)

Monthly active

69K

Daily active

20K

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
📅 13.1y of rating accumulation	-30%
🔁 Business D30 retention	22%
📍 DAU / MAU stickiness	0.30

DAU / MAU 29% sticky

🛠 Estimated tech stack

🍎

Native iOS (Swift / UIKit)

Medium confidence · 70%

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

📦 App bundle size	35 MB
🏷 Category context	Business
📦 Small-mid iOS bundle	→ Native Swift / UIKit (pre-2020 era)

💀 Maintenance status

Slowing

30%

Last shipped 2026-06-04 · 117 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

📅 3 months since last update

Slowing cadence

Verdict Slowing

🔬

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

Below median · 50/100MID TIERunderperforming peers

Growth Velocity

5.0

Founder Strength

4.2

Product Quality

9.6

Revenue Strength

3.7

Monetization Maturity

1.0

Defensibility

4.5

Market Position

2.0

Operational Safety

10.0

💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.78★ across 20,747 reviews — exceptional (top 1% in category).
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: Insufficient signal to assess trajectory.
⚠️ 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 = $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 8 of 8 triggers

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

Mid install base (20,747 ratings)METRIC		+$5,500
Excellent rating (4.8★)METRIC		+$2,200
bugsREVIEW		−$1,800
securityREVIEW		+$1,800
Mature app (13y old)METRIC		+$1,500
highly recommendREVIEW		+$1,400
slowREVIEW		−$1,200
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.

🆕 What's New · v74.0

This update includes behind-the-scenes improvements to reliability, performance, and stability, along with refinements to connectivity, background activity, and the app’s visual foundations.

Profile & Insights

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

Identification

App name: Kisi
Developer: KISI Incorporated
Bundle ID: de.kisibox.Kisi
App Store URL: Open in App Store
Category: Business
Content rating: 4+
Languages: EN, FR

Company

Website: Not found
Tagline: Today
Description: Find apps and games for iPhone, iPad, Mac, and more on the App Store.
Founded: Not found
HQ / Address: Not found
Employees: Not found
Logo: Available

Revenue

Reported revenue signal / mo: Not found
AI revenue estimate / mo: Not found
AI annual estimate: Not found
Model estimate / mo: $5.0K/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 growth23,953 ratings+22932% lifetimeShow 3-year history estimate ▾

Tracked (60 weeks) Pre-tracking estimate (0 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.

🚀Update Frequency · Releases per Quarter2 releases tracked

🚀Version Release Timeline2 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

Kisi is a cloud-based door access control and security solution.  
 
UNLOCK DOORS WITH YOUR PHONE
 
With the Kisi app, you can use your iPhone to quickly and securely unlock any door equipped with Kisi. 
 
- See the list of the doors you have access to and unlock them from the app 
- Tap-to-unlock*: open a door by holding your iPhone up to a Kisi Reader
- MotionSense*: wave your hand in front of the reader to unlock the door without taking your phone out of the bag (only supported by the MotionSense-enabled doors) 
- One single key for any door in any building… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

💾 35 MB🔞 4+📱 iOS 16.0+🔖 v74.0🔄 updated 3mo ago🌐 EN, FR📂 Business💰 Paid🚀 Launched 2013 (13y old)

📅

What Worked™ · Development Pipeline

15 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

🔧

Shipped update — v72.8 → v74.0

→ 30 days after: reviews +1,356 high confidence

2026-05

🔄

Monetization changed: freemium → free

→ 30 days after: reviews +1,356 medium · co-occurring

2026-03

⭐

Rating ↑ 2.95 → 4.60 (improved 1.65★)

2026-03

📈

Crossed 500 ratings — social-proof flywheel kicking in

2022-10

📈

Crossed 100 ratings — social-proof flywheel kicking in

2018-06

📈

Crossed 50 ratings — social-proof flywheel kicking in

→ 30 days after: rating +0.08★ · reviews +5 high confidence

2018-06

📈

Crossed 50 ratings — social-proof flywheel kicking in

→ 30 days after: rating +0.22★ · reviews +8 medium · co-occurring

2016-07

⭐

Rating ↑ 2.41 → 2.81 (improved 0.40★)

→ 30 days after: rating +0.10★ high confidence

2016-02

⭐

Rating ↓ 3.10 → 2.50 (dropped 0.60★)

→ 30 days after: rating +0.10★ high confidence

2015-12

📈

Crossed 10 ratings — social-proof flywheel kicking in

→ 30 days after: rating −0.23★ high confidence

2015-11

⭐

Rating ↑ 3.00 → 3.33 (improved 0.33★)

→ 30 days after: rating −0.23★ high confidence

2015-09

⭐

Rating ↑ 2.75 → 3.20 (improved 0.45★)

→ 30 days after: rating −0.20★ high confidence

2015-08

⭐

Rating ↓ 3.33 → 2.75 (dropped 0.58★)

→ 30 days after: rating +0.45★ high confidence

2015-08

⭐

Rating ↓ 5.00 → 3.50 (dropped 1.50★)

→ 30 days after: rating −2.25★ medium · co-occurring

2015-04

🚀

First tracked snapshot — initial data captured

🌍

Multi-Country Performance

Available in 9 of 9 monitored markets

Market	Rating	Reviews	Current version
🇦🇺 AU	4.69231★	1,365	4.69231★ this version
🇧🇷 BR	5★	25	5★ this version
🇨🇦 CA	4.66059★	1,373	4.66059★ this version
🇩🇪 DE	4.66948★	118	4.66948★ this version
🇫🇷 FR	4.43158★	95	4.43158★ this version
🇬🇧 GB	4.58531★	1,811	4.58531★ this version
🇮🇳 IN	4.72414★	29	4.72414★ this version
🇯🇵 JP	4.59999★	35	4.59999★ this version
🇺🇸 US	4.73703★	24,436	4.73703★ this version

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

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

Read deep-dive →