55
Quality Score
Solid
Xiaoxiang BMS
Low confidence
✍️ bumetric analysis
“
Xiaoxiang BMS is an iOS app from e77code GmbH in the Productivity category, currently rated 3.6★ across 66 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 55: Solid (established niche player). For a Productivity 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
$500
per month
→
12-mo forecast
$437 – $1575
per month
→
24-mo forecast
$405 – $3644
per month
INDIE tierFREE
💡 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
$105K
↳ What it cost to build · not monthly revenue
Likely range $80K – $140K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~6 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 |
| ⚙Productivity complexity ×1.10 | +$5K |
| ⚙8.1y maintenance × ~1-person team | +$48K |
Total estimate$105K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$300K
↳ What it would sell for · not monthly revenue
Marketplace range $225K – $400K · 16× MRR multiple
💸~2.9× return on build cost
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 |
| 📅8.1y proven track record | +20% |
| ⭐★ rating 3.5-4.0 (mixed) | -8% |
| 🏷Productivity category multiple | +8% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple16× MRR
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
High confidence · 80%
Also possible
Native iOS (SwiftUI)
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 | 10 MB |
| 🏷Category context | Productivity |
| 📦Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2024-04-21 · 763 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
| 📅2y+ since last update | Likely abandoned |
| 👥Small user base (66 ratings) + 8.1y old | +10% (solo-project pattern) |
VerdictLikely abandoned
🔬
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, review-mined risks present
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 · 27/100INDIE TIERFREE (NO MONETIZATION)limited signalRevenue Strength
2.7
Product Quality
1.4
Market Position
2.0
Growth Velocity
5.0
Defensibility
4.0
Operational Safety
0.8
Founder Strength
5.3
Monetization Maturity
0.5
- 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 3.58★ across 66 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 763d ago — possibly dormant.
- ⚠️ Risk: High — scam/fraud mentions detected, bug mentions above category norm, rating drift -0.50 ★ (recent 50 vs lifetime).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $6K-$11K. Portfolio play ($18K/mo combined) commands premium. Discount applied for operational risk..
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:
| 5 starREVIEW | +$1,800 | |
| Mature app (8y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Localized (6 languages)METRIC | +$600 | |
| Pre-traction phase (66 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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 10 MB🔞 4+📱 iOS 16.0+🔖 v1.3.4🔄 updated 2y ago🌐 EN, FR, DE, PL, ZH +1📂 Productivity💰 Paid🚀 Launched 2018 (8y old)
📝 About this app
With Xiaoxiang / jiabaida BMS Smart BMS you can build simple Li-Ion or LiFePo4 battery packs. For camping, car, solar or e-bikes.
iOS app for Xiaoxiang / jiabaida BMS (JBD-SP15S001 / JBD-SP05S002) allows you to monitor voltage of the cells, total capacity, charging/discharging current and alarms temperatures on your iPhone or Apple Watch.
Additionally you can switch the battery (charging and discharging ports) off.
Note: I'm not manufacturer of this BMS. If you have questions or want to buy one, contact one of the manufacturers: https://www.lithiumbatterypcb.com/
App Features:… View full description on the official store →
iOS app for Xiaoxiang / jiabaida BMS (JBD-SP15S001 / JBD-SP05S002) allows you to monitor voltage of the cells, total capacity, charging/discharging current and alarms temperatures on your iPhone or Apple Watch.
Additionally you can switch the battery (charging and discharging ports) off.
Note: I'm not manufacturer of this BMS. If you have questions or want to buy one, contact one of the manufacturers: https://www.lithiumbatterypcb.com/
App Features:… View full description on the official store →
🆕 What's New · v1.3.4
ADs consent management for EU and UK within free version.
📅
What Worked™ · Development Pipeline
5 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 →
2026-03
⭐
Rating ↑ 3.11 → 3.50 (improved 0.39★)
2021-10
⭐
Rating ↓ 4.33 → 4.00 (dropped 0.33★)
2021-10
📈
Crossed 10 ratings — social-proof flywheel kicking in
2021-06
⭐
Rating ↓ 4.75 → 4.33 (dropped 0.42★)
2018-11
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 104 reviews across 8 markets● 38% positive · ● 19% neutral · ● 42% negative · Rating drift: -0.50★ (declining — recent 50: 3.08★ vs lifetime: 3.58★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇨🇦 CA
+0.85
🇦🇺 AU
+0.55
🇫🇷 FR
+0.42
🇬🇧 GB
+0.39
🇺🇸 US
+0.33
🇯🇵 JP
+0.00
🇮🇳 IN
-0.26
🇩🇪 DE
-0.39
Top praise themes
nicht mehr ×8 state charge ×4 ich habe ×4 vielen dank ×4 batterie nicht ×4 lässt sich ×3 die batterie ×3 kann ich ×3
Top complaint themes
pro version ×9 amp hours ×4 please fix ×3 bei liontron ×3 liontron nicht ×3 meine batterie ×3 ich ×12 das ×10
Risk signals
Refund mentions: 1.0% Bug mentions: 6% Fraud / scam mentions: 1.0%
🧪
Tech & Domain Intel — github.com
- Mail provider
- Microsoft 365
- Tech stack
- Microsoft 365 · Apple Pay / Sign in with Apple · Atlassian (Jira/Confluence) · Meta (Facebook) Ads · Google Workspace · Loom · Shopify · Stripe
Derived from public RDAP + DNS TXT records (no scraping, no login).
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 3.57576★ | 66 | 3.57576★ this version |
| 🇬🇧 GB | 3.47368★ | 19 | 3.47368★ this version |
| 🇩🇪 DE | 3.62651★ | 83 | 3.62651★ this version |
| 🇫🇷 FR | 4.5★ | 10 | 4.5★ this version |
| 🇯🇵 JP | 3.85714★ | 7 | 3.85714★ this version |
| 🇨🇦 CA | 4.88889★ | 9 | 4.88889★ this version |
| 🇦🇺 AU | 4★ | 6 | 4★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 2★ | 4 | 2★ this version |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Xiaoxiang BMS
- Developer
- e77code GmbH
- Bundle ID
- Apioo.XiaoxiangBMS
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- EN, FR, DE, PL, ZH, ES
Company
- Website
- github.com
- Tagline
- Search code, repositories, users, issues, pull requests...
- Description
- Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.
- 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
- $18.5K/mo
- Top-grossing rank
- Outside top 100 in US Productivity
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- x.com/github
- linkedin.com/company/github
- GitHub
- docs.github.com
- 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
- github docs.github.com · instagram instagram.com/github · linkedin linkedin.com/company/github · tiktok tiktok.com/@github · twitter x.com/github · youtube youtube.com/github
- Not found
- Phone
- Not found
- Contact page
- github.com/premium-support
- About page
- github.com/team
⭐Recent App Store Reviews26 latest · avg 3.19★ · 38.5% 5★ · 26.9% 1★
5★10 (38%)
4★3 (12%)
3★2 (8%)
2★4 (15%)
1★7 (27%)
+1 ratings/week
Praise: awesome ×3 great ×3 amazing ×2 recommend ×1 perfect ×1Complaints: scam ×1 bug ×1 crash ×1
Top positive
★★★★★ A BMS gem!
This has worked flawlessly for us since 2019!!…
★★★★★ “Cycle count”
I cannot update the settings I would like because it demands I update the “cycle count” but it doesn’t exist!!!! EDIT: I finally got it to send through the parameters after I entered them manually but the balance function doesn’t seem to be…
Top negative
★☆☆☆☆ Scam. Avoid all devices from this provider.
This app is used to control a BMS device I paid for. I have used this app for several years to control my device. Now they are demanding payment to setup the BMS. What a scam. I will find a way around, but basically folks avoid any devices …
★☆☆☆☆ Enter PIN1
Simply cannot get into app. Paid $7.99 and still. I Never set a pin. Waste of money.…
📈Ratings growth66 ratings+6500% lifetimeShow 3-year history estimate ▾
Tracked (27 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.
Similar apps in Productivity
About this analysis
Why low confidence: only 66 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Xiaoxiang BMS make per month?▴
Based on our ML-calibrated revenue forecast, Xiaoxiang BMS earns approximately $18K/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 Xiaoxiang BMS profitable?▴
With estimated build cost $105K and monthly revenue $18K, Xiaoxiang BMS looks profitable — pays back its estimated build cost in roughly 6 months at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like Xiaoxiang BMS?▴
Browse the full Productivity 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 Xiaoxiang BMS built with?▴
Our heuristic places Xiaoxiang BMS on the Native iOS (Swift / UIKit) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (SwiftUI).
Is Xiaoxiang BMS still actively maintained?▴
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 2+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Xiaoxiang BMS sell for?▴
Estimated acquisition value: $300K (marketplace range $225K – $400K). Calculated as 16× 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 Xiaoxiang BMS last updated?▴
Xiaoxiang BMS last shipped a new version on 2024-04-21 — more than 2 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Xiaoxiang BMS?▴
Xiaoxiang BMS is published by e77code GmbH 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 Xiaoxiang BMS's BU Score?▴
Xiaoxiang BMS has a BU Score of 55/100 (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.