Invoice Maker ▸ Invoice Simple vs Window Cleaning Estimator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Invoice Maker ▸ Invoice Simple
Create and send professional invoices, estimates, and receipts quickly from your mobile device. This app helps individuals and growing businesses get organized, look professional, and get paid faster by accepting online payments.
- Create invoices, estimates, and receipts
- Send documents via email, text, or WhatsApp
- Accept online payments
- Customize invoices with logo and business details
- Track invoice status and get payment reminders
- Organize client and product information
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Easily create & send professional invoices, estimates, and receipts on the go! The perfect tool for individuals and growing businesses that lets you quickly create a document on the spot while with your customer. For growing businesses who want: · A simple way to make estimates, invoices, and receipts fast · Professional-looking invoices that you can send from your mobile device · An easy way to accept online payments and stop chasing checks From a landscaping invoice or estimate to a receipt for entertainment supplies in your side gig, Invoice Simple is the app for your small business. START YOUR FREE TRIAL 6 WAYS INVOICE SIMPLE MAKES YOUR LIFE AS A BUSINESS OWNER EASIER 1. SIMPLE TO USE Designed to make sure you never have to waste time “figuring out” how to make it work. 2. INVOICE ANYWHERE Standing next to your client, in your truck, or sitting at your desk, there’s no quicker way to send an invoice. 3. GET ORGANIZED Keeping track is effortless. Your entire history is collected in one place, easy to find and read. Taxes are a breeze. 4. LOOK MORE PROFESSIONAL Create professional-looking invoices and estimates on the spot. 5. GET PAID FASTER Making it easy to get paid by accepting cards with simple fee structure and low rates that you can add to an invoice - no cost to you, as well as accept checks and cash. 6. INVOICE WITH CONFIDENCE Join hundreds of thousands of small businesses who rely on Invoice Simple, consistently a top-rated invoicing app. Easily customize every aspect of your invoice, estimate, or receipt: 1. Add your logo and business details 2. Include your banking details 3. Easy-add and import client details saved in your phone contacts 4. Customize tax and add discounts 5. Accept credit card payment with simple fee structure and low rates that you can add to an invoice - no cost to you, as well as accept checks and cash 6. Add product information and attach photos 7. Include your signature Send your invoice or estimate by email, text, WhatsApp, or download it as a PDF. Get instant alerts when it's opened, paid, or is overdue with instant mobile device and email notifications. You don’t have to limit yourself to cash and checks. Just select “accept online payments” and follow the simple steps to hook up your invoices to Invoice Simple Payments. PLANS: Start with a free trial, then choose the best plan for your business: Essentials For entrepreneurs to easily start sending estimates, invoices, receipts, and receive payments. · Up to 3 invoices per month · QR code payments · Online payments · Real time read receipts · Expense tracking · Top rated mobile and web apps Plus For small businesses to send nice-looking, easy to create documents on-the-go. Everything in Essentials, plus: · Up to 10 invoices per month · Add photos · Business owner signature · Autofill client & item info · Due date reminders Premium For small businesses to improve invoice organization and make online payments easy. Everything in Plus, along with: · UNLIMITED invoices per month · Customer support 1st response priority Invoice Simple, the ultimate invoice, receipt, & estimate maker: Send simple invoices using professional templates, invoice generator, PDF invoices and quotes, online payments, bill organizer, receipt and expense tracking, and business reporting—all rolled up into one easy-to-use app. When it's time to create an estimate, invoice, or receipt for your small business, Invoice Simple will work for you. Terms of use: https://www.invoicesimple.com/terms Privacy policy: https://www.invoicesimple.com/privacy
Window Cleaning Estimator
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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
Verdict
The clearest difference is price: Invoice Maker ▸ Invoice Simple at Free against Window Cleaning Estimator's $7.99. Invoice Maker ▸ Invoice Simple also leads on update cadence (every 11 days vs every 6 weeks) and chart position (#9 vs unranked). Window Cleaning Estimator's advantage is in-app purchases (none vs 11). On ads, device support and iOS requirement 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
Invoice Maker ▸ Invoice Simple is free to download; Window Cleaning Estimator costs $7.99 up front. Invoice Maker ▸ Invoice Simple sells 9 in-app purchases, starting at $6.99 per month. Window Cleaning Estimator asks for nothing beyond the download.
Invoice Maker ▸ Invoice Simple ships an update every 11 days, Window Cleaning Estimator every 6 weeks. The most recent releases landed on October 28, 2026 and October 27, 2026 respectively.
| Parameter | Invoice Maker ▸ Invoice Simple | Window Cleaning Estimator |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 4.9 (123K ratings) — better | — |
| Positive reviews | 63.8% of reviews | — |
| Number of ratings | 123K — better | — |
| Update frequency | Every 11 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #9 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.3 |
| Further details — not scored | ||
| Size | 220 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Zenvoice Inc. | Michael Haslam |
Bugs and requests
Invoice Maker ▸ Invoice Simple
Reported bugs
4 issues- Invoices not sending properly
- App crashing or freezing
- Inability to recover deleted invoices
- Syncing issues between mobile and desktop
Requested features
6 requests- Add ability to rearrange line items
- Improve search and filtering capabilities
- Integrate with accounting software
- Add option to track expenses and profitability
- Allow multiple business profiles in one account
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- Improve mobile and desktop app parity
Window Cleaning Estimator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Invoice Maker ▸ Invoice Simple
- Essentials Monthly$6.991 Month
- Mobile subscription$10.991 Month
- Monthly Side Business$10.991 Month
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- Monthly Business Sub$11.991 Month
- Monthly Subscription$11.991 Month
- Monthly subscription2 variants$13.491 Month
- Plus Monthly$14.991 Month
- Monthly Standard Subscription$17.991 Month
- Premium Monthly$21.991 Month
Window Cleaning Estimator
No in-app purchases
Questions
Is Invoice Maker ▸ Invoice Simple free?
Is Window Cleaning Estimator free?
Do Invoice Maker ▸ Invoice Simple or Window Cleaning Estimator have ads?
Which is updated more often, Invoice Maker ▸ Invoice Simple or Window Cleaning Estimator?
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