# Square Invoices vs Estimate Maker Flex

Square Invoices and Estimate Maker Flex both sit at 4.8 stars, but that hides the real split: 97% of Estimate Maker Flex's written reviews are positive against 55% of Square Invoices's. Estimate Maker Flex also leads on iOS requirement (13.0 vs 17.1). Square Invoices's advantage is ratings volume (93K vs 101) and chart position (#129 vs unranked). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Square Invoices sells 1 in-app purchase, starting at $19.99 per month and Estimate Maker Flex sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Square Invoices against 4.8 for Estimate Maker Flex. That said, the two scores are not equally well evidenced: Square Invoices has 93K ratings behind it against 101, so its average is the more settled of the two. Written reviews are what separate them: 55% of Square Invoices's written reviews are positive against 97% of Estimate Maker Flex's.

Square Invoices ships an update weekly, Estimate Maker Flex every 9 days. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Square Invoices | Estimate Maker Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (93K ratings)](https://appshunter.io/ios/app/square-invoices-invoice-maker/id1405254630/reviews) | [4.8 (101 ratings)](https://appshunter.io/ios/app/estimate-maker-flex/id1594306406/reviews) |
| Number of ratings | **93K** | 101 |
| Positive reviews | 54.7% of reviews | **97.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#129** | — |
| Size | 713 MB | 99 MB |
| Requires iOS | 17.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | +4 |
| Developer | [Block, Inc.](https://appshunter.io/developer/335393791) | [B TO J PTY LTD](https://appshunter.io/developer/569308231) |

## What reviewers say

### Square Invoices

[App page](https://appshunter.io/ios/app/square-invoices-invoice-maker/id1405254630)

**Currently charting:** #129 Top Grossing · Business (US App Store)

Create and send professional invoices and estimates quickly. Accept various payment methods, send automatic reminders, and track payments in real-time. Manage your business finances efficiently on the go.

**Highlights:** Invoice and estimate maker, Accept various payment methods, Automatic payment reminders, Real-time tracking and reporting, Recurring invoices, Customizable invoices

**Features:** Apple Wallet

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoices Plus | $19.99 | per month |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Convenient for small businesses
- 🚀 Great for invoicing and payments
- 🚀 Seamless integration with other Square products
- 👍 Professional-looking invoices

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🔒 Concerns about account deactivation and fund holds
- 💰 High processing fees
- 🤔 Lack of customer support and communication
- 🤔 Limited customization options for invoices

**Reported bugs**

- Invoices not updating correctly
- Issues with connecting card readers
- Problems with account deactivation and fund holds

**Requested features**

- Add ability to apply discounts on invoices
- Improve invoice editing capabilities
- Implement auto-save feature for estimates
- Provide option to send invoices via text message
- Add customer statement generation functionality


### Estimate Maker Flex

[App page](https://appshunter.io/ios/app/estimate-maker-flex/id1594306406)

Create and send professional estimates quickly and easily. Convert estimates to invoices with a single tap. Customize titles, currencies, and date formats for a personalized touch. Works offline and supports multiple templates.

**Highlights:** Create and send estimates, Convert estimates to invoices, Customizable titles and subtitles, Multi-currency support, Multiple date formats, Offline functionality, Professional templates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $5.99 | per month |
| 1 Year Subscription | $49.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient for creating estimates
- 👍 Practical and functional
- 👍 Professional-looking estimates
- 👍 Helpful for business growth

**What reviewers complain about**

- ❓ Translation not complete
- ❓ A little difficult to understand initially
- 🐛 App not opening

**Reported bugs**

- App not opening

**Requested features**

- Add option to get client signature
- Add signature of the person who made the estimate


## Frequently asked questions

### Is Square Invoices free?

Square Invoices is free to download, with in-app purchases available.

### Is Estimate Maker Flex free?

Estimate Maker Flex is free to download, with in-app purchases available.

### Which has better reviews, Square Invoices or Estimate Maker Flex?

Square Invoices and Estimate Maker Flex are both rated 4.8 out of 5 on the App Store, from 93K and 101 ratings respectively.

### Do Square Invoices or Estimate Maker Flex have ads?

Neither Square Invoices nor Estimate Maker Flex shows ads.

### Which is updated more often, Square Invoices or Estimate Maker Flex?

Square Invoices ships an update weekly, and Estimate Maker Flex every 9 days. Most recently, Square Invoices was updated on September 26, 2026 and Estimate Maker Flex on September 22, 2026.

---

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