# Invoice Maker vs Window Cleaning Estimator

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.

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.

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.

## The numbers

| Metric | Invoice Maker | Window Cleaning Estimator |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[4.8 (111K ratings)](https://appshunter.io/ios/app/invoice-maker-invoice-fly/id1606911248/reviews)** | — |
| Number of ratings | **111K** | — |
| Positive reviews | 85.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#8** | — |
| Size | 185 MB | 2 MB |
| Requires iOS | **15.6** | 17.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Labhouse Mobile](https://appshunter.io/developer/1568110847) | [Michael Haslam](https://appshunter.io/developer/1439018618) |

## What reviewers say

### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-invoice-fly/id1606911248)

**Currently charting:** #8 Top Grossing · Business, #62 Top Free · Business, #182 Top Grossing (US App Store)

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:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Fly Weekly | $8.99 | per 7 days |
| Invoice Fly Weekly | $8.99 | per 7 days |
| Invoice Fly Weekly | $8.99 | per 7 days |
| Invoice Fly Weekly | $9.99 | per 7 days |
| Invoice Fly Premium | $17.99 | per month |
| Unlimited Invoicing | $17.99 | per month |
| Invoice Fly Monthly | $17.99 | per month |
| Invoice Fly Premium | $98.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient invoicing
- 💡 Professional templates
- 🔒 Secure payments
- 🚀 Convenient mobile access

**What reviewers complain about**

- 🐛 Occasional bugs
- 💰 Expensive subscription
- 🔒 Difficult to recover account
- 🔍 Limited customer support

**Reported bugs**

- Issues with invoice conversion
- Inability to view past invoices
- Inconsistent PDF generation

**Requested features**

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


### Window Cleaning Estimator

[App page](https://appshunter.io/ios/app/window-cleaning-estimator/id6496853940)

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*