ISSEN - Voice Tutor
68
Quality Score
Solid
ISSEN - Voice Tutor
Medium confidence
✍️ bumetric analysis
“
ISSEN - Voice Tutor is an iOS app from Issen, Inc. in the News category, currently rated 4.7★ across 1,888 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 68: Solid (established niche player). For a News 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
$7.2K
per month
→
12-mo forecast
$7.4K – $15.6K
per month
→
24-mo forecast
$9.2K – $27.6K
per month
MID 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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$90K
↳ What it cost to build · not monthly revenue
Likely range $70K – $120K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~11 months 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 |
| 📦 Asset bundle (107 MB) | +$22K |
| ⚙ News complexity ×1.20 | +$14K |
Total estimate
$90K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$125K
↳ What it would sell for · not monthly revenue
Marketplace range $100K – $175K · 16× MRR multiple
💸
~1.4× 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 ≥ 4.7 (premium) | +15% |
| 🏷 News category multiple | -5% |
Final multiple
16× MRR
👥 Estimated audience size
225K
Lifetime downloads (US-equivalent)
Monthly active
33K
Daily active
15K
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
| 📲 News engagement | ~120 installs / rating |
| 🔁 News D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
45% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$7.2K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$6.8K – $11.4K
12 months
$7.4K – $15.6K
24 months
$9.2K – $27.6K
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 · 47/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
4.9
Product Quality
8.5
Revenue Strength
3.9
Monetization Maturity
1.0
Defensibility
2.3
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $5K - $10K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.71★ across 1,888 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 = $129K-$229K.
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:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| Low install base (1,888 ratings)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Single-language (English only)METRIC | −$400 | |
| Growing app (1y old)METRIC | +$200 |
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 · v1.15.1
• More reliable flashcard reviews
• Improved speech recognition for more accurate conversations
• Performance and stability improvements
Thanks for learning with ISSEN!
• Improved speech recognition for more accurate conversations
• Performance and stability improvements
Thanks for learning with ISSEN!
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- ISSEN - Voice Tutor
- Developer
- Issen, Inc.
- Bundle ID
- com.issen.app
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 12+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Master a foreign language with your personal AI tutor
- Description
- Your on-demand, realtime voice tutor adapts lessons and chats to your particular skill level, interests, learning style, and goals.
- 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
- $8.3K/mo
- Top-grossing rank
- 🇩🇪#60 /100
- 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
- Socials
- discord discord.com/invite/UeEjPbFtjE
- contact@issen.com
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth2,181 ratings+108950% lifetimeShow 3-year history estimate ▾
Tracked (37 weeks) Pre-tracking estimate (16 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution1 of 9 markets
🇩🇪
DE
Top-grossing rank: #60 / 100
Other markets
Outside top 100
in US, GB, DE, FR, JP, CA, AU, BR, IN
in US, GB, DE, FR, JP, CA, AU, BR, IN
This app currently ranks in only one of the 9 markets we monitor. Niche or regional apps often launch this way before global rollout. Rankings update daily.
📊Category Rank Trajectory#60 now · best #60 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀Version Release Timeline4 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
ISSEN the most advanced realtime AI voice tutor that helps you achieve fluency in a fun way.
Want to practice new grammar, role-play situations like business meetings or dates, or talk about your personal life? You can do all of this and more in ISSEN.
You tutors will remember your conversations and preferences, and each tutor has their own experiences, personality, and style. You can also choose your tutor's accent, slang, and complexity level, and talk for as long as you'd like!… View full description on the official store →
Want to practice new grammar, role-play situations like business meetings or dates, or talk about your personal life? You can do all of this and more in ISSEN.
You tutors will remember your conversations and preferences, and each tutor has their own experiences, personality, and style. You can also choose your tutor's accent, slang, and complexity level, and talk for as long as you'd like!… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 107 MB🔞 12+📱 iOS 14.0+🔖 v1.15.1🔄 updated 0d ago🌐 EN📂 News💰 Paid
📅
What Worked™ · Development Pipeline
4 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
📈
Crossed 50 ratings — social-proof flywheel kicking in
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2025-07
📈
Crossed 10 ratings — social-proof flywheel kicking in
2025-01
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.78333★ | 60 | 4.78333★ this version |
| 🇧🇷 BR | 4.86014★ | 143 | 4.86014★ this version |
| 🇨🇦 CA | 4.70092★ | 214 | 4.70092★ this version |
| 🇩🇪 DE | 4.56056★ | 1,354 | 4.56056★ this version |
| 🇫🇷 FR | 4.66312★ | 282 | 4.66312★ this version |
| 🇬🇧 GB | 4.63333★ | 240 | 4.63333★ this version |
| 🇮🇳 IN | 4.21053★ | 19 | 4.21053★ this version |
| 🇯🇵 JP | 4.28★ | 25 | 4.28★ this version |
| 🇺🇸 US | 4.71112★ | 2,122 | 4.71112★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for ISSEN - Voice Tutor: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 1,888 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does ISSEN - Voice Tutor make per month?▴
Based on our ML-calibrated revenue forecast, ISSEN - Voice Tutor earns approximately $8.3K/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 ISSEN - Voice Tutor?▴
Browse the full News 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 ISSEN - Voice Tutor?▴
ISSEN - Voice Tutor is published by Issen, Inc. 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 ISSEN - Voice Tutor's BU Score?▴
ISSEN - Voice Tutor has a BU Score of 68/100 (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.