Comparison

Invoice Maker vs Window Cleaning Estimator

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

Head to head
About

Invoice Maker

Easily create, send, and track professional invoices and estimates. Perfect for small businesses and freelancers, this app helps organize finances with customizable templates, payment tracking, and client management.

Highlights
  • Create invoices in under a minute
  • Generate invoices from estimates
  • Customizable invoice templates
  • Attach images and notes
  • Add discounts and taxes
  • Client contact list integration
  • Track income with reports
  • Notifications on invoice opening
Features
Read full description

Invoice Fly is the easiest way to create and send professional invoices to your clients. It’s perfect for small businesses, freelancers and contractors. Whether you need to create and invoice or estimate, Invoice Fly is the #1 invoice app for the job. Keep your finances organized with Invoice Fly, where you can easily create, send and track invoices on your phone. You will be able to configure as many details as you need, adding payment information, taxes, withholding, due dates, extra images, discount, signature and more. Also, you will be notified when the customer receives and opens your invoice. Features: -Create invoices in less than a minute, anywhere you are. -Generate invoices from estimates with a tap. -Choose from different invoice templates and customize them. -Attach images and additional notes. -Discounts per item or total. -Taxes per item or total. -Add signature. -Share or print invoices on the go. -Quickly setup clients from your phone contact list. -Sync all your devices with the same account. -Track your incomes with easy to use reports. -Get notified when the client receives and opens your invoice. -24/7 support Creating and sending an invoice has never been so easy: Step 1: Tap create invoice Step 2: Select your client to bill, easily from your contacts Step 3: Add the desired items and prices Step 4: You are ready to go, save and send. Privacy Policy: https://www.invoicefly.com/privacy-policy Terms of use: https://www.invoicefly.com/terms-and-cond

About

Window Cleaning Estimator

Read full description

Transform your window cleaning business with "Window Cleaning Estimator," the ultimate app designed by window cleaners, for window cleaners. This user-friendly app eliminates the need for monthly fees, putting robust tools right in your pocket without ongoing costs. Key features include: • Instant Estimates & Invoices: Generate accurate estimates, detailed invoices, and receipts on-the-go. • Customer Data Management: Easily save and retrieve customer profiles to streamline your operations. • Custom Window Counters: Tailor the app with custom counters for precise estimate calculations. • Flexible Pricing Options: Set taxes and discounts directly within the app to reflect real-world charges accurately. • Multiple Currencies: Conduct business globally with support for various currencies. • Personalized Business Details: Add your company logo, details. • Offline Capability: Access all features offline, ensuring you can manage your business without an internet connection. • Dedicated Support: Have a question or an idea for a new feature? Contact us directly through the app!

Screenshots

Invoice Maker4 screens
Window Cleaning Estimator4 screens

Verdict

The call

The clearest difference is price: Invoice Maker at Free against Window Cleaning Estimator's $7.99. Invoice Maker also leads on update cadence (weekly vs every 6 weeks) and chart position (#8 vs unranked). Window Cleaning Estimator's advantage is in-app purchases (none vs 10). On ads and device support 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

Invoice Maker is free to download; Window Cleaning Estimator costs $7.99 up front. Invoice Maker sells 8 in-app purchases, starting at $8.99 per 7 days. Window Cleaning Estimator asks for nothing beyond the download.

UpkeepUpdate frequency

Invoice Maker ships an update weekly, Window Cleaning Estimator every 6 weeks. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 6 level
Invoice Maker versus Window Cleaning Estimator: the parameters behind the verdict, then further details
ParameterInvoice MakerWindow Cleaning Estimator
PriceFree — better$7.99
Rating4.8 (111K ratings) — better—
Positive reviews85.9% of reviews—
Number of ratings111K — better—
Update frequencyWeekly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#8 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.3
Further details — not scored
Size185 MB2 MB
Age rating4+4+
DeveloperLabhouse MobileMichael Haslam

Bugs and requests

Invoice Maker

Reported bugs

3 issues
  • Issues with invoice conversion
  • Inability to view past invoices
  • Inconsistent PDF generation

Requested features

4 requests
  • Ability to convert estimates to invoices
  • Option to save invoices as PDFs
  • Integrate with more payment processors
  • Improved reporting and analytics

Window Cleaning Estimator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Invoice Maker

Subscriptions8
  • Invoice Fly Weekly7 Days trial$8.997 Days
  • Invoice Fly Weekly3 Days trial2 variants$8.997 Days
  • Invoice Fly Weekly2 variants$8.997 Days
Show 5 more
  • Invoice Fly Weekly3 Days trial$9.997 Days
  • Invoice Fly Premium$17.991 Month
  • Unlimited Invoicing$17.991 Month
  • Invoice Fly Monthly3 Days trial$17.991 Month
  • Invoice Fly Premium$98.991 Year
None

Window Cleaning Estimator

No in-app purchases

Questions

Is Invoice Maker free?
Invoice Maker is free to download, with in-app purchases available.
Is Window Cleaning Estimator free?
Window Cleaning Estimator costs $7.99, with no in-app purchases.
Do Invoice Maker or Window Cleaning Estimator have ads?
Neither Invoice Maker nor Window Cleaning Estimator shows ads.
Which is updated more often, Invoice Maker or Window Cleaning Estimator?
Invoice Maker ships an update weekly, and Window Cleaning Estimator every 6 weeks. Most recently, Invoice Maker was updated on November 6, 2026 and Window Cleaning Estimator on November 4, 2026.

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