Zadarma
42
Quality Score
Emerging
Zadarma
Low confidence
✍️ bumetric analysis
“
Zadarma is an iOS app from Zadarma Project in the Business category, currently rated 3.3★ across 70 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 42: Emerging (early traction worth watching). For a Business 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
💡 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
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$95K
↳ What it cost to build · not monthly revenue
Likely range $70K – $130K
$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 |
| 📦 Asset bundle (85 MB) | +$13K |
| ⚙ Business complexity ×1.50 | +$32K |
Total estimate
$95K
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$500/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
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 · 36/100INDIE TIERlimited signalGrowth Velocity
5.0
Founder Strength
3.0
Product Quality
2.6
Revenue Strength
2.7
Monetization Maturity
1.0
Defensibility
4.5
Market Position
2.0
Operational Safety
8.0
- 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 3.29★ across 70 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Moderate — 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 = $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
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 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Below-average rating (3.3★)METRIC | −$1,500 | |
| Mature app (11y old)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Localized (9 languages)METRIC | +$600 | |
| Pre-traction phase (70 ratings)METRIC | −$300 |
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.
🆕 What's New · v7.8.8
This update from Apple will improve the functionality of this app. No new features are included.
Italian interface language has been added — all settings and controls are now available in Italian.
Italian interface language has been added — all settings and controls are now available in Italian.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Zadarma
- Developer
- Zadarma Project
- Bundle ID
- com.portsip.zadarma
- App Store URL
- Open in App Store
- Category
- Business
- Content rating
- 4+
- Languages
- EN, FR, DE, IT, PL, PT, RU, ES, UK
Company
- Website
- Not found
- Tagline
- Neue Generation der Internettelefonie für Ihr Unternehmen
- Description
- Zadarma: IP-Telefonie, virtuelle Rufnummern in über 100 Ländern, kostenlose Cloud-Telefonanlage, Integration mit CRM-Systemen, nützliche Widgets, Calltracking.
- 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
- $207/mo
- Top-grossing rank
- Outside top 100 in US Business
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- x.com/ZadarmaDE
- linkedin.com/company/zadarma
- 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/zadarmade · linkedin linkedin.com/company/zadarma · twitter x.com/ZadarmaDE · youtube youtube.com/playlist?list=PLPGEmuoHtx…
- Not found
- Phone
- +1 646 980 4741
- Contact page
- zadarma.com/de/support/instructions
- About page
- zadarma.com/de/solutions/integrations…
📈Ratings growth70 ratings+6900% lifetimeShow 3-year history estimate ▾
Tracked (36 weeks) Pre-tracking estimate (36 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
Zadarma is a simple and reliable VoIP app for making and receiving calls and SMS. Get a virtual number and PBX in one app, right on your mobile! Stay connected wherever you are with high-quality calls and affordable rates.
Key Features:
- Virtual numbers & PBX – get a virtual number in 110 countries and connect to your PBX directly in the app.
- Call transfer – easily transfer calls to colleagues or other numbers.
- Call recordings – listen to recorded calls right in the app.
- SMS messaging – send and receive texts easily.… View full description on the official store →
Key Features:
- Virtual numbers & PBX – get a virtual number in 110 countries and connect to your PBX directly in the app.
- Call transfer – easily transfer calls to colleagues or other numbers.
- Call recordings – listen to recorded calls right in the app.
- SMS messaging – send and receive texts easily.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 85 MB🔞 4+📱 iOS 12.0+🔖 v7.8.8🔄 updated 0d ago🌐 EN, FR, DE, IT, PL +4📂 Business💰 Free
📅
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 →
2026-05
⭐
Rating ↓ 3.70 → 3.29 (dropped 0.41★)
2026-05
🔄
Monetization changed: freemium → free
2026-03
⭐
Rating ↑ 2.06 → 3.70 (improved 1.64★)
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2019-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2017-05
⭐
Rating ↑ 1.00 → 1.67 (improved 0.67★)
2015-06
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 3.75★ | 4 | 3.75★ this version |
| 🇧🇷 BR | 4.28571★ | 14 | 4.28571★ this version |
| 🇨🇦 CA | 3.5★ | 20 | 3.5★ this version |
| 🇩🇪 DE | 3.17647★ | 17 | 3.17647★ this version |
| 🇫🇷 FR | 3.8★ | 15 | 3.8★ this version |
| 🇬🇧 GB | 3.41667★ | 24 | 3.41667★ this version |
| 🇮🇳 IN | 3★ | 4 | 3★ this version |
| 🇯🇵 JP | 5★ | 1 | 5★ this version |
| 🇺🇸 US | 3.28571★ | 70 | 3.28571★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Similar apps in Business
About this analysis
Why low confidence: only 70 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Zadarma make per month?▴
Based on our ML-calibrated revenue forecast, Zadarma earns approximately $207/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 Zadarma?▴
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 Zadarma?▴
Zadarma is published by Zadarma Project 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 Zadarma's BU Score?▴
Zadarma has a BU Score of 42/100 (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.