57
Quality Score
Solid
Zine - Enjoy Writing
Medium confidence
✍️ bumetric analysis
“
Zine - Enjoy Writing is an iOS app from Aura Marker Studio Co., Ltd., currently rated 4.5★ across 238 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 57: Solid (established niche player). For an app like this, 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
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID tierSUBSCRIPTION
💡 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
$165K
↳ What it cost to build · not monthly revenue
Likely range $125K – $225K
$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 (145 MB) | +$38K |
| ⚙12.6y maintenance × ~1-person team | +$75K |
Total estimate$165K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$10K
↳ What it would sell for · not monthly revenue
Marketplace range $10K – $15K · 18× MRR multiple
💸~0.1× 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 |
| 📅12.6y proven track record | +20% |
| ⭐★ rating ≥ 4.4 (solid) | +8% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple18× MRR
👥 Estimated audience size
24K
Lifetime downloads (US-equivalent)
Monthly active
1.3K
Daily active
260
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
| 📲category engagement | ~150 installs / rating |
| 📅12.6y of rating accumulation | -30% |
| 🔁category D30 retention | 15% |
| 📍DAU / MAU stickiness | 0.20 |
DAU / MAU20% sticky
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
Medium confidence · 60%
Also possible
React NativeFlutter
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 | 145 MB |
| 🏷Category context | category |
| 📦Mid-large iOS bundle | → Likely native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Slowing
25%
Last shipped 2026-04-10 · 44 days ago
0 · Active50 · At risk100 · 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
| 📅44 days since last update | Healthy release cadence |
| 👥Small user base (238 ratings) + 12.6y old | +10% (solo-project pattern) |
VerdictSlowing
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Tailwinds: monetization model proven
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 · 54/100MID TIERSUBSCRIPTIONunderperforming peersRevenue Strength
3.7
Product Quality
4.8
Market Position
2.0
Growth Velocity
5.0
Defensibility
7.0
Operational Safety
7.8
Founder Strength
3.8
Monetization Maturity
9.5
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.47★ across 238 reviews — below category median.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Moderate — rating drift -1.31 ★ (recent 50 vs lifetime).
🎯 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
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 10 of 10 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| subscriptionREVIEW | +$2,500 | |
| premiumREVIEW | +$2,200 | |
| securityREVIEW | +$1,800 | |
| unique featuresREVIEW | +$1,600 | |
| Mature app (12y old)METRIC | +$1,500 | |
| free trialREVIEW | +$1,200 | |
| Good rating (4.5★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Localized (5 languages)METRIC | +$600 | |
| Early-stage install base (238 ratings)METRIC | +$400 |
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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 145 MB🔞 17+📱 iOS 13.0+🔖 v6.9.6🔄 updated 1mo ago🌐 EN, JA, ZH, ES, ZH💰 Paid🚀 Launched 2013 (12y old)
📝 About this app
Zine is a well-designed powerful notes and writing app.
It has many unique features:
1: Beautiful Typesetting, and Easily Personalize Your Articles:
Zine supports many fonts, colors, font sizes, paragraph styles, papers, templates, and WYSIWYG photo editing. You can typeset beautiful articles very easily on mobile phone and share them to social networks.
2: Built-in Cloud Storage, Content Would Never Been Lost:
Zine provides cloud storage space to save your articles. Even if your phone have lost or replaced, you can get all of your contents back very easily.
3: Protecting Privacy:… View full description on the official store →
It has many unique features:
1: Beautiful Typesetting, and Easily Personalize Your Articles:
Zine supports many fonts, colors, font sizes, paragraph styles, papers, templates, and WYSIWYG photo editing. You can typeset beautiful articles very easily on mobile phone and share them to social networks.
2: Built-in Cloud Storage, Content Would Never Been Lost:
Zine provides cloud storage space to save your articles. Even if your phone have lost or replaced, you can get all of your contents back very easily.
3: Protecting Privacy:… View full description on the official store →
🆕 What's New · v6.9.6
The new version optimizes the content synchronization mechanism.
🗣
Voice of Customer
Based on 109 reviews across 8 markets● 40% positive · ● 50% neutral · ● 9% negative · Rating drift: -1.31★ (declining — recent 50: 3.16★ vs lifetime: 4.47★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇮🇳 IN
+0.77
🇬🇧 GB
+0.57
🇫🇷 FR
+0.30
🇦🇺 AU
+0.24
🇺🇸 US
+0.21
🇨🇦 CA
+0.21
🇯🇵 JP
+0.17
🇩🇪 DE
-0.15
Top praise themes
easy ×10 amazing ×6 useful ×6 it's ×6 beautiful ×4 elegant ×4 recommend ×3 convenient ×3
Top complaint themes
long pdf ×3 export content ×3 language ×6 membership ×4 apple ×4 subscription ×4 waste ×3 share ×3
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.47478★ | 238 | 4.47478★ this version |
| 🇬🇧 GB | 4.74286★ | 35 | 4.74286★ this version |
| 🇩🇪 DE | 4.16667★ | 12 | 4.16667★ this version |
| 🇫🇷 FR | 4.71429★ | 21 | 4.71429★ this version |
| 🇯🇵 JP | 4.28571★ | 49 | 4.28571★ this version |
| 🇨🇦 CA | 4.25861★ | 58 | 4.25861★ this version |
| 🇦🇺 AU | 4.51111★ | 45 | 4.51111★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 4.42734★ | 117 | 4.42734★ this version |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Zine - Enjoy Writing
- Developer
- Aura Marker Studio Co., Ltd.
- Bundle ID
- com.auramarker.zine
- App Store URL
- Open in App Store
- Category
- Not found
- Content rating
- 17+
- Languages
- EN, JA, ZH, ES, ZH
Company
- Website
- Not found
- Tagline
- Discover the Fun of Creation
- Description
- Graphic editing and online publishing tools for exquisite typesetting
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $591/mo
- Top-grossing rank
- Outside top 100 in US
- 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.
⭐Recent App Store Reviews49 latest · avg 3.12★ · 38.8% 5★ · 34.7% 1★
5★19 (39%)
4★5 (10%)
3★5 (10%)
2★3 (6%)
1★17 (35%)
+0 ratings/week
Praise: great ×4 awesome ×1 best ×1 amazing ×1 love ×1Complaints: worst ×1 crash ×1
Top positive
★★★★★ The scrolling screenshot is easy to use!
To be honest, I downloaded this app just for scrolling screenshots. All you need to do is to select the photos you need and add descriptions to them. Pretty handy!…
★★★★★ 好用
写东西非常方便，排版、加图片功能简单易用，很喜欢。…
Top negative
★☆☆☆☆ "违规传播违法内容，祝你早日悔改"
流氓垃圾软件，收费还删文件
莫名其妙下架文章，搞不清是五毛党还是他爹，看看标题就是这个流氓集团的点评回复！
"违规传播违法内容，国家政策也不允许，祝你早日悔改"
这种违背言论自由的软件反人类，应该被app store下架…
★☆☆☆☆ 最近服务稳定性变差了太差了
最近zine的服务稳定性太差了，出现了好几次同步数据失败及搜索失败。…
📈Ratings growth238 ratings+53% lifetimeShow 3-year history estimate ▾
Tracked (2 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.
Full revenue analysis
Read the article-style breakdown for Zine - Enjoy Writing: 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: 238 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Zine - Enjoy Writing make per month?▴
Based on our ML-calibrated revenue forecast, Zine - Enjoy Writing earns approximately $591/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 Zine - Enjoy Writing profitable?▴
With estimated build cost $165K and monthly revenue $591, Zine - Enjoy Writing 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 Zine - Enjoy Writing have?▴
Estimated audience: ~24K lifetime downloads, ~1K monthly active users, and ~260 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 is Zine - Enjoy Writing built with?▴
Our heuristic places Zine - Enjoy Writing on the Native iOS (Swift / UIKit) stack (Medium confidence, 60%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is Zine - Enjoy Writing still actively maintained?▴
Maintenance status: Slowing (25% abandonment risk). Last shipped version was 1 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Zine - Enjoy Writing sell for?▴
Estimated acquisition value: $10K (marketplace range $10K – $15K). Calculated as 18× 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 Zine - Enjoy Writing last updated?▴
Zine - Enjoy Writing last shipped a new version on 2026-04-10 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Zine - Enjoy Writing?▴
Zine - Enjoy Writing is published by Aura Marker Studio Co., Ltd. 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 Zine - Enjoy Writing's BU Score?▴
Zine - Enjoy Writing has a BU Score of 57/100 (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.