CallApp: Caller ID & Block
79
Quality Score
Strong
CallApp: Caller ID & Block
by CallApp Caller ID, Call Recorder & Spam Blocker
High confidence
✍️ Bumetric analysis
“
CallApp carves out a robust niche in communication utilities, directly competing with established system-level dialers and specialized spam blockers like Truecaller or Hiya. Its comprehensive feature set, spanning caller ID, call recording, and SMS management, positions it as a full-service communication hub. The app’s substantial user base, evidenced by over a million ratings, coupled with a solid user satisfaction score, indicates strong traction and a mature growth stage, suggesting a stable, engaged audience. Given its free monetization model, CallApp likely generates revenue through advertising or premium subscription tiers for advanced features, a common strategy in this utility-focused category where users often pay for an ad-free experience or enhanced data privacy. For similar apps, a typical upgrade path involves offering a subscription for features like unlimited call recording storage, advanced spam filtering, or reverse phone number lookup without limits.
BU Score 79 · Strong — healthy traction. The full Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track snapshot history and revenue forecast in the Performance section below.
💰 Monthly revenue · now vs forecast
● Right now
$700K
per month
→
12-mo forecast
$741K – $1141K
per month
→
24-mo forecast
$886K – $1645K
per month
BIG tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
6 snapshots on record
Rating
4.3
Reviews
1,828,672 reviews
Forecast Revenue / mo
$700K
Snapshots tracked
6
since May 2026
ONE-TIME · BUILD
💰 Estimated build cost
$235K
↳ What it cost to build · not monthly revenue
Likely range $175K – $315K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in under a month 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 |
| 💎 In-app purchase plumbing | +$9K |
| ⚙ Communication complexity ×1.65 | +$38K |
| 🌐 Cross-platform reach (iOS + Android) | +$53K |
| ⚙ 14.1y maintenance × ~1-person team | +$84K |
Total estimate
$235K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$26.5M
↳ What it would sell for · not monthly revenue
Marketplace range $20.0M – $34.5M · 38× MRR multiple
💸
~113× return on build cost
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 |
| 📅 14.1y proven track record | +20% |
| 🏷 Communication category multiple | +5% |
| ⭐ Mature user base (1M+ ratings) | +8% |
Final multiple
38× MRR
👥 Estimated audience size
121.5M
Lifetime downloads (US-equivalent)
Monthly active
9.9M
Daily active
5.9M
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
| 📲 Communication engagement | ~95 installs / rating |
| 📅 14.1y of rating accumulation | -30% |
| 🔁 Communication D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.60 |
DAU / MAU
60% 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 | Communication |
| 📦 Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Active
5%
Last shipped 2026-10-06 · 22 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
| 📅 22 days since last update | Active development |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$700K/mo · ML-estimated from 234 triggers
Growth rate
+2.5% MoM · BIG tier baseline (compound monthly)
6 months
$690K – $933K
12 months
$741K – $1.1M
24 months
$886K – $1.6M
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 · 56/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
3.3
Product Quality
8.5
Revenue Strength
5.8
Monetization Maturity
5.0
Defensibility
7.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.27★ across 1,828,672 reviews — strong (top 10%).
- 📍 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 = $12.6M-$22.4M.
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
MODELRevenue 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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| High install base (1,828,672 ratings)METRIC | +$12,000 | |
| Mature app (14y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Good rating (4.3★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- CallApp: Caller ID & Block
- Developer
- CallApp Caller ID, Call Recorder & Spam Blocker
- Bundle ID
- com.callapp.contacts
- App Store URL
- Open in App Store
- Category
- Communication
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- callapp.com
- 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
- $700K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $149.99 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
<p><strong> Caller ID? Block numbers? Text & SMS messaging? Call Recording? Phone number lookup? </strong></p>
We’ve got it all with CallApp, our phone number lookup & default SMS app!
<p><strong> 📞 Caller ID: </strong></p>
- Advanced caller ID technology to identify unknown numbers. More than 7 BILLION numbers!
- Never ask “who called me” again!
- Always know who is calling, with our caller trace & phone book abilities!
- Stop telemarketing & spam calls, texts and SMS!
- Phone number lookup- search phone number or numbers and find them ASAP!… View full description on the official store →
We’ve got it all with CallApp, our phone number lookup & default SMS app!
<p><strong> 📞 Caller ID: </strong></p>
- Advanced caller ID technology to identify unknown numbers. More than 7 BILLION numbers!
- Never ask “who called me” again!
- Always know who is calling, with our caller trace & phone book abilities!
- Stop telemarketing & spam calls, texts and SMS!
- Phone number lookup- search phone number or numbers and find them ASAP!… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 vVaries with device🔄 updated 3w ago📂 Communication💰 Free📺 Ad-supported💎 IAP $0.99 - $149.99 per item🚀 Launched 2012 (14y old)
📅
What Worked™ · Development Pipeline
7 EVENTS TRACKEDDetected 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 →
2026-10
🔧
Shipped update — vVaries with device → vVaries with device
→ 30 days after: reviews +11,385 high confidence
2026-09
🔧
Shipped update — vVaries with device → vVaries with device
→ 30 days after: reviews +23,044 high confidence
2026-08
🔧
Shipped update — vVaries with device → vVaries with device
→ 30 days after: reviews +21,972 high confidence
2026-07
📸
Refreshed store screenshots — 7 of 7 updated
→ 30 days after: reviews +10,313 medium · co-occurring
2026-07
🔧
Shipped update — vVaries with device → vVaries with device
→ 30 days after: reviews +26,250 medium · co-occurring
2026-06
🔧
Shipped update — vVaries with device → vVaries with device
→ 30 days after: reviews +32,723 medium · co-occurring
2026-05
🚀
First tracked snapshot — initial data captured
→ 30 days after: reviews +16,786 high confidence
📸
Store Page History
7 SCREENSHOT CHANGESEvery 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.
2 ver.
2026-05-06
2026-07-12
Slot 2
2 ver.
2 ver.
2026-05-06
2026-07-12
Slot 3
2 ver.
2 ver.
2026-05-06
2026-07-12
Slot 4
2 ver.
2 ver.
2026-05-06
2026-07-12
Slot 6
2 ver.
2 ver.
2026-05-06
2026-07-12
Slot 7
2 ver.
2 ver.
2026-05-06
2026-07-12
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for CallApp: Caller ID & Block: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why high confidence: 1,828,672 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does CallApp make per month?▴
Based on our ML-calibrated revenue forecast, CallApp earns approximately $700K/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 CallApp profitable?▴
With estimated build cost $235K and monthly revenue $700K, CallApp looks highly profitable — pays back its build investment in under a month at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does CallApp have?▴
Estimated audience: ~121.5M lifetime downloads, ~9.9M monthly active users, and ~5.9M 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 CallApp?▴
Browse the full Communication 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 CallApp built with?▴
Our heuristic places CallApp 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 CallApp still actively maintained?▴
Maintenance status: Active (5% abandonment risk). Last shipped version was 22 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would CallApp sell for?▴
Estimated acquisition value: $26.5M (marketplace range $20.0M – $34.5M). Calculated as 38× 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 CallApp last updated?▴
CallApp last shipped a new version on 2026-10-06 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes CallApp?▴
CallApp is published by CallApp Caller ID, Call Recorder & Spam Blocker 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 CallApp's BU Score?▴
CallApp has a BU Score of 79/100 (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.