Comparison

Billdu vs Simple Invoice Bill Maker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Billdu

Create professional invoices and estimates quickly for your small business. This app helps you get paid faster with online payment options, track expenses by scanning receipts, and manage clients and inventory. It's designed for freelancers and contractors to maintain a professional image and streamline billing.

Highlights
  • Customizable invoice templates
  • Instant estimates and invoices
  • Online payment processing
  • Receipt scanning for expense tracking
  • Client and inventory management
  • Multi-device synchronization
Features
Currently charting
Read full description

Billdu is your all-in-one invoice maker, estimate generator, and billing app designed for small businesses, contractors, and freelancers in the US. Whether you’re creating a simple invoice, a professional estimate, or tracking receipts, Billdu makes it fast, easy, and reliable. Why choose Billdu? • Customizable Invoice Templates – Personalize with your logo, colors, and signature. Choose from professional layouts that impress clients. • Instant Estimates & Invoices – Create and send documents right after the job is done. • Get Paid Faster – Enable Stripe-powered Online Payments to accept credit cards, Apple Pay, Google Pay, and other popular payment methods. • Expense Tracking – Scan receipts, categorize expenses, and keep your business finances organized. • Contractor-Friendly Tools – Perfect for construction, plumbing, electrical, and service-based businesses. • Multi-Device Sync – Access your account and data from iPhone, iPad, or desktop in real-time. • Inventory Management – Track products, manage stock, and add items to invoices in one tap. • Client Management – Store and organize client data, import from contacts, and send reminders. Who Billdu is for? Billdu is perfect for contractors, estimators, and service companies including: painters, concrete, HVAC, roofers, renovators, plumbers, siding, lawn care, construction, electricians, carpenters, flooring, builders, pest control, tile, handymen, landscapers, drywallers, paving, remodeling, arborists, cleaning, general contractors, scaffolding, insulation, pool, EV charger installers and more! Advanced Features: - Attach product images to invoices - Know when an invoice was opened - Connect directly with your accountant - Use offline and sync later - Secure with Face ID or Touch ID - Generate reports and track cash flow Flexible Plans: Try Billdu free for 7 days. Upgrade to Lite, Standard, or Premium for unlimited invoices, estimates, and clients. Billdu helps you save time, get paid faster, and stay organized — all while maintaining a professional image. Terms: https://my.billdu.com/page/condition Privacy: https://my.billdu.com/page/protection

About

Simple Invoice Bill Maker

Easily create and customize professional PDF invoices on your mobile device. This tool is designed for freelancers and small business owners needing quick and hassle-free billing solutions. Features include custom branding, client management, and automatic tax calculations.

Highlights
  • Quick PDF generation
  • Custom branding
  • Client management
  • Tax and discount calculator
  • On-the-go invoicing
Features
Read full description

Create professional invoices in minutes with our simplest invoice bill maker! Easily customize and generate PDF invoices on the go. Perfect for freelancers, small business owners, and anyone needing fast, hassle-free billing. Key Features: • Quick PDF Generation - Create and share professional invoices instantly • Custom Branding - Add your colors and business details • Client Management - Save customer details for faster invoicing • Tax & Discount Calculator - Automatic calculations for accuracy Perfect for: • Freelancers • Small Business Owners • Contractors • Service Providers • Consultants • Independent Professionals Download now and simplify your invoicing! Terms of Use - https://it-waves.com/terms-and-conditions Privacy policy - https://it-waves.com/apps/privacy-policy

Screenshots

Billdu4 screens
Simple Invoice Bill Maker4 screens

Verdict

The call

The clearest difference is rating: Billdu at 4.8 against Simple Invoice Bill Maker's 4.2. Billdu also leads on ratings volume (26K vs 6) and review sentiment (89% vs 69%). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Billdu sells 10 in-app purchases, starting at $7.99 per month and Simple Invoice Bill Maker sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Billdu holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Billdu has 26K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 89% of Billdu's written reviews are positive against 69% of Simple Invoice Bill Maker's.

UpkeepUpdate frequency

Billdu ships an update every 2 weeks, Simple Invoice Bill Maker every 10 days. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 7 level
Billdu versus Simple Invoice Bill Maker: the parameters behind the verdict, then further details
ParameterBillduSimple Invoice Bill Maker
PriceFreeFree
Rating4.8 (26K ratings) — better4.2 (6 ratings)
Positive reviews89.3% of reviews — better69.2% of reviews
Number of ratings26K — better6
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#67 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Mac
Requires iOS17.017
Further details — not scored
Size205 MB26 MB
Age rating4+4+
DeveloperBILLDU LTDIT WAVES

Customer experience

Billdu

All ratings26,064 ratings
Positive95.9%
Neutral2.0%
Negative2.1%
Written reviews1,140 reviews
Positive89.3%
Neutral2.5%
Negative8.2%

Simple Invoice Bill Maker

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews13 reviews
Positive69.2%
Neutral0.0%
Negative30.8%

Bugs and requests

Billdu

Reported bugs

3 issues
  • Invoices not being received by clients
  • Inconsistent invoice numbering
  • Inability to save draft estimates

Requested features

5 requests
  • Improved date/time handling
  • Ability to transfer data between businesses
  • More customization options for invoices
  • Integrated payment processing
  • Enhanced reporting and analytics

Simple Invoice Bill Maker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Billdu

Subscriptions10
  • LITE - 1 month$7.991 Month
  • STANDARD (Month)$14.991 Month
  • STANDARD - 1 month$14.991 Month
Show 7 more
  • STANDARD - 1 month7 Days trial$14.991 Month
  • PREMIUM (Month)$27.991 Month
  • PREMIUM - 1 month$27.991 Month
  • 24 invoices$59.991 Year
  • STARTER (Year)$59.991 Year
  • STANDARD (Year)$119.991 Year
  • STANDARD - 12 months$119.991 Year
3 purchases

Simple Invoice Bill Maker

Subscriptions3
  • Premium Weekly$1.997 Days
  • Premium Monthly$3.991 Month
  • Premium Yearly$34.991 Year

Questions

Is Billdu free?
Billdu is free to download, with in-app purchases available.
Is Simple Invoice Bill Maker free?
Simple Invoice Bill Maker is free to download, with in-app purchases available.
Which has better reviews, Billdu or Simple Invoice Bill Maker?
Billdu is rated higher. Billdu averages 4.8 out of 5 from 26K ratings, while Simple Invoice Bill Maker averages 4.2 from 6 ratings.
Do Billdu or Simple Invoice Bill Maker have ads?
Neither Billdu nor Simple Invoice Bill Maker shows ads.
Which is updated more often, Billdu or Simple Invoice Bill Maker?
Billdu ships an update every 2 weeks, and Simple Invoice Bill Maker every 10 days. Most recently, Billdu was updated on September 24, 2026 and Simple Invoice Bill Maker on September 10, 2026.

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