Invoice Generator・Simple Bill
72
Quality Score
Strong
✍️ Bumetric analysis
“
Invoice Generator・Simple Bill is an iOS app from Saldo Apps Inc. in the Business category, currently rated 4.8★ across 7,134 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 72: Strong (healthy traction). For a Business app, that means healthy traction. 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
$12.8K
per month
→
12-mo forecast
$13.3K – $27.8K
per month
→
24-mo forecast
$16.5K – $49.4K
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
68 snapshots on record
Rating
4.8
Reviews
7,134 reviews
Forecast Revenue / mo
$12.8K
Snapshots tracked
68
since Jan 2019
ONE-TIME · BUILD
💰 Estimated build cost
$180K
↳ What it cost to build · not monthly revenue
Likely range $135K – $245K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~1.2y 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 (292 MB) | +$40K |
| ⚙ Business complexity ×1.50 | +$45K |
| ⚙ 7.7y maintenance × ~1-person team | +$46K |
Total estimate
$180K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$300K
↳ What it would sell for · not monthly revenue
Marketplace range $225K – $375K · 23× MRR multiple
💸
~1.7× 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 |
| 📅 7.7y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Business category multiple | +10% |
Final multiple
23× MRR
👥 Estimated audience size
320K
Lifetime downloads (US-equivalent)
Monthly active
46K
Daily active
13K
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
| 📲 Business engagement | ~65 installs / rating |
| 📅 7.7y of rating accumulation | -30% |
| 🔁 Business D30 retention | 22% |
| 📍 DAU / MAU stickiness | 0.30 |
DAU / MAU
29% sticky
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
Medium confidence · 55%
Also possible
React Native
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
| 📦 App bundle size | 292 MB |
| 🏷 Category context | Business |
| 📦 Large iOS bundle | → Native Swift / UIKit (pre-2020 era) + assets |
💀 Maintenance status
Active
5%
Last shipped 2026-09-14 · 18 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
| 📅 18 days since last update | Active development |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$12.8K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Tailwinds: monetization model proven
Headwinds: review-mined risks present
6 months
$12.2K – $20.3K
12 months
$13.3K – $27.8K
24 months
$16.5K – $49.4K
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
Building · 55/100MID TIERSUBSCRIPTIONcompetitive build-outGrowth Velocity
5.0
Founder Strength
5.7
Product Quality
7.1
Revenue Strength
4.1
Monetization Maturity
9.5
Defensibility
7.9
Market Position
2.0
Operational Safety
3.0
- 💰 Revenue: Modest — $8K - $19K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.75★ across 7,134 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ Risk: High — 3.1% refund mentions, 14% subscription complaints, scam/fraud mentions detected.
🎯 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 = $154K-$282K. 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 11 of 11 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 | |
| subscriptionREVIEW | +$2,500 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| cancelledREVIEW | −$1,500 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (7,134 ratings)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| free trialREVIEW | +$1,200 | |
| support teamREVIEW | +$900 | |
| Established app (7y old)METRIC | +$800 |
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 · v6.1.3
Bug fixes and performance improvements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Invoice Generator・Simple Bill
- Developer
- Saldo Apps Inc.
- Bundle ID
- com.simple.invoice.maker
- App Store URL
- Open in App Store
- Category
- Business
- Content rating
- 4+
- Languages
- EN, FR, DE, ES
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $12.8K/mo
- Top-grossing rank
- 🇦🇺#59 /100 🇨🇦#88 /100 🇬🇧#95 /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
Contacts & Socials data not yet collected for this app.
📈Ratings growth7,246 ratings+40156% lifetimeShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (0 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Top Countries — Grossing Rank3 countries
🇦🇺AU#59 /100
🇨🇦CA#88 /100
🇬🇧GB#95 /100
📊Category Rank Trajectory#59 now · best #59 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀Update Frequency · Releases per Quarter5 releases tracked
🚀Version Release Timeline5 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
Over 5,500 users rated 5* for helping them create and share invoices in just a few seconds, on the go, from any device.
Your time is too precious to spend on mundane paperwork. Let us handle that while you focus on what’s really important.
FIVE REASONS TO GET STARTED NOW:
1. SAVE TIME
Creating a professional invoice or estimate takes you just a few seconds and a couple of taps, as you save all details of your product or service —description, price and more. Convert estimates to invoices with one tap.
2. STAY ORGANIZED… View full description on the official store →
Your time is too precious to spend on mundane paperwork. Let us handle that while you focus on what’s really important.
FIVE REASONS TO GET STARTED NOW:
1. SAVE TIME
Creating a professional invoice or estimate takes you just a few seconds and a couple of taps, as you save all details of your product or service —description, price and more. Convert estimates to invoices with one tap.
2. STAY ORGANIZED… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 292 MB🔞 4+📱 iOS 15.0+🔖 v6.1.3🔄 updated 2w ago🌐 EN, FR, DE, ES📂 Business💰 Paid🚀 Launched 2019 (7y old)
📅
What Worked™ · Development Pipeline
16 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 →
2026-09
🔧
Shipped update — v6.1.0 → v6.1.3
→ 30 days after: reviews +17 high confidence
2026-08
🔧
Shipped update — v6.0.9 → v6.1.0
→ 30 days after: reviews +46 high confidence
2026-06
🔧
Shipped update — v6.0.6 → v6.0.9
→ 30 days after: revenue +$9.5K/mo · reviews +30 high confidence
2026-06
🔧
Shipped update — v6.0.5 → v6.0.6
→ 30 days after: revenue +$9.5K/mo · reviews +66 medium · co-occurring
2026-05
🔄
Monetization changed: paid → free
→ 30 days after: reviews +36 high confidence
2026-03
⭐
Rating ↑ 2.98 → 4.71 (improved 1.73★)
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2022-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +12 medium · co-occurring
2022-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +17 low · multiple changes
2021-01
📈
Crossed 50 ratings — social-proof flywheel kicking in
2021-01
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: rating −0.13★ · reviews +11 medium · co-occurring
2019-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating −0.28★ high confidence
2019-05
⭐
Rating ↓ 4.20 → 3.83 (dropped 0.37★)
→ 30 days after: rating +0.20★ · reviews +6 high confidence
2019-04
⭐
Rating ↑ 3.67 → 4.00 (improved 0.33★)
→ 30 days after: rating +0.20★ · reviews +6 high confidence
2019-03
⭐
Rating ↓ 5.00 → 3.67 (dropped 1.33★)
→ 30 days after: rating +0.33★ high confidence
2019-01
🚀
First tracked snapshot — initial data captured
🔎
ASO Keyword Positions
BEST RANK #21Ranked for 1 App Store search query in our last keyword sweep. Lower position = closer to the top.
invoicing·#21🇺🇸
Last sweep: 2026-05-19 · iTunes Search API
🗣
Voice of Customer
Based on 222 reviews across 5 markets● 67% positive · ● 5% neutral · ● 28% negative · Rating drift: -1.73★ (declining — recent 50: 3.02★ vs lifetime: 4.75★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇫🇷 FR
+0.71
🇬🇧 GB
+0.67
🇨🇦 CA
+0.37
🇦🇺 AU
+0.34
🇺🇸 US
+0.29
Top praise themes
customer service ×6 user friendly ×5 small business ×5 quick easy ×5 customer support ×3 mark paid ×3 highly recommend ×3 invoices ×23
Top complaint themes
new update ×7 send invoices ×6 paid subscription ×6 lost invoices ×6 sending invoices ×4 invoices paid ×4 stopped working ×4 send email ×3
Risk signals
Refund mentions: 3.1% Subscription complaints: 14% Fraud / scam mentions: 0.9%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.60381★ | 578 | 4.60381★ this version |
| 🇧🇷 BR | 5★ | 2 | 5★ this version |
| 🇨🇦 CA | 4.56888★ | 450 | 4.56888★ this version |
| 🇩🇪 DE | 5★ | 5 | 5★ this version |
| 🇫🇷 FR | 4.26316★ | 19 | 4.26316★ this version |
| 🇬🇧 GB | 4.71835★ | 632 | 4.71835★ this version |
| 🇮🇳 IN | 4.56522★ | 23 | 4.56522★ this version |
| 🇯🇵 JP | 5★ | 9 | 5★ this version |
| 🇺🇸 US | 4.75061★ | 7,250 | 4.75061★ this version |
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Invoice Generator・Simple Bill: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Saldo Apps Inc.
View all →📦 Portfolio summaryINDIE studio
4apps·$36K/mocombined
✓ Diversified — top app contributes 35%; risk spread across portfolio
About this analysis
Why medium confidence: 7,134 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Invoice Generator・Simple Bill make per month?▴
Based on our ML-calibrated revenue forecast, Invoice Generator・Simple Bill earns approximately $12K/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 Invoice Generator・Simple Bill profitable?▴
With estimated build cost $180K and monthly revenue $12K, Invoice Generator・Simple Bill looks break-even-grade — payback period sits around 1.2 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Invoice Generator・Simple Bill have?▴
Estimated audience: ~320K lifetime downloads, ~46K monthly active users, and ~13K 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 Invoice Generator・Simple Bill?▴
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.
What is Invoice Generator・Simple Bill built with?▴
Our heuristic places Invoice Generator・Simple Bill on the Native iOS (Swift / UIKit) stack (Medium confidence, 55%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is Invoice Generator・Simple Bill still actively maintained?▴
Maintenance status: Active (5% abandonment risk). Last shipped version was 18 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Invoice Generator・Simple Bill sell for?▴
Estimated acquisition value: $300K (marketplace range $225K – $375K). Calculated as 23× 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 Invoice Generator・Simple Bill last updated?▴
Invoice Generator・Simple Bill last shipped a new version on 2026-09-14 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Invoice Generator・Simple Bill?▴
Invoice Generator・Simple Bill is published by Saldo Apps 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 Invoice Generator・Simple Bill's BU Score?▴
Invoice Generator・Simple Bill has a BU Score of 72/100 (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.