Square Invoices vs Estimate Maker Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Square Invoices
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.
- Invoice and estimate maker
- Accept various payment methods
- Automatic payment reminders
- Real-time tracking and reporting
- Recurring invoices
- Customizable invoices
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Square Invoices is a must-have invoicing solution to run your business: invoice and estimate maker, and a secure, fast payment system. It is an essential invoicing solution that efficiently supports any type of business: ► Home & Repair: Contractors, Cleaning, Automotive, Landscaping ► Food & Drink: Catering, Bakery, Food Trucks, Wholesale Stores ► Professional Services: Web Designers, Photographers, Consultants, Accountants, Architects, Interior Designers, Advertising, Real Estate It has everything you need to run your business on the go: estimates, contacts, invoices, payments, automatic reminders and real-time tracking and reporting. It’s all in one app, and there are no monthly fees. Bill customers with a simple invoice app that also makes sending estimates or requesting deposits easy. Access Square Invoices on your iPhone, iPad or desktop. ► INVOICE AND ESTIMATE MAKER Send professional invoices and estimates in three simple steps: just enter your customer’s email, the amount, and hit send. Customise the look and easily attach photos, contracts, or receipts. ► ACCEPT ANY KIND OF PAYMENT Cut collection times from weeks to days by giving your customers more convenient ways to pay—no more stamps or envelopes. Customers can pay online or in person with any major debit or credit card, Apple Pay or Google Pay, cash, check or ACH Payment. ► REACH CUSTOMERS MORE EFFECTIVELY Send invoices wherever your customers prefer—email, URL, text / SMS, manually through any messaging app, or print out a hard copy. Customers can easily pay on their phone or computer from anywhere. ► AUTOMATIC REMINDERS AND TRACKING Stop chasing down payments with automatic payment reminders and transparent tracking that tells you the moment each invoice is viewed and paid. ► FLEXIBLE BILLING Get paid on your schedule by requesting a deposit or setting up recurring invoices for weekly or monthly billing. Customers can also authorize Square to securely save their payment cards on file to be charged automatically. Whether you are sending a quote to confirm your next freelance job, requesting a deposit for a custom order, or billing for your contractor hours, Square Invoices is the all-in-one app for your payment and workflow needs. Download and set up your account in just minutes.
Estimate Maker Flex
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.
- Create and send estimates
- Convert estimates to invoices
- Customizable titles and subtitles
- Multi-currency support
- Multiple date formats
- Offline functionality
- Professional templates
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Create and send professional estimates on the spot. Turn estimates into invoices by a single tap. Close more business deals. How it works * Enter your info * Add customers manually or from Contacts * Add your products / services After that, you can create and send professional estimates instantly. Flexibility * Manually edit titles (e.g. Estimate -> estimación, Quote) * Manually edit subtitles (e.g. Billing address -> Bill to, Signature -> Approved by) * Multi-currencies (e.g. \$, £, ... Manually enter your currency code) * Date format (e.g. 04/18/2019, 18/04/2019, 18/Apr/2019) * Works without the internet * Import contacts from your existing contacts or manually create them * Payment term set up based on each customer (7 days by default) * Decimal hours or quantity supported * Five professionally designed beautiful templates * Delete items (e.g. Estimates, products, customers) by swiping to the left * Edit existing documents * Add signature and date on the spot * Icon, Signature, Note, Other comments fields won't appear if nothing is entered * Preview estimates before sending them as a PDF * Send as a PDF or print wirelessly * Create 5 estimates for free Professional Features * Add business registration name (ABN etc.) and number * Tax, GST, VAT set up (e.g. No tax, single tax, compound tax) * Add discount (Actual \$ or %) * Payment terms (Immediate, 7 days, 14 days, 21 days,... up to 180 days) * Add your company logo ### Mobility * Send directly from iPhone and iPad * Your personal estimate system in your pocket ### Upgrade to Subscription Version The subscription version offers cloud sync and backup features so that you can save all the info in our highly secured cloud services and share the same data across multiple iOS devices. Upgrading to the subscription version requires auto-renewal subscription. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Links to Your Privacy Policy and Terms of Use: http://www.btoj.com.au/privacy.html http://www.btoj.com.au/terms.html Please feel free to contact us for anything. Simplify your life now.
Screenshots
Verdict
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 (#143 vs unranked). On price, rating, update cadence and ads 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
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 25, 2026 and September 22, 2026 respectively.
| Parameter | Square Invoices | Estimate Maker Flex |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (93K ratings) | 4.8 (101 ratings) |
| Positive reviews | 54.7% of reviews | 97.2% of reviews — better |
| Number of ratings | 93K — better | 101 |
| Update frequency | Weekly — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #143 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 713 MB | 99 MB |
| Age rating | 17+ | +4 |
| Developer | Block, Inc. | B TO J PTY LTD |
Customer experience
Square Invoices
Estimate Maker Flex
User reviews
Square Invoices
From 93K App Store ratingsWhat we love
- 🚀 Easy to use
- 🚀 Convenient for small businesses
- 🚀 Great for invoicing and payments
- 🚀 Seamless integration with other Square products
- 👍 Professional-looking invoices
Room to improve
- 🐛 Buggy and unreliable
- 🔒 Concerns about account deactivation and fund holds
- 💰 High processing fees
- 🤔 Lack of customer support and communication
- 🤔 Limited customization options for invoices
Estimate Maker Flex
From 101 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Efficient for creating estimates
- 👍 Practical and functional
- 👍 Professional-looking estimates
- 👍 Helpful for business growth
Room to improve
- ❓ Translation not complete
- ❓ A little difficult to understand initially
- 🐛 App not opening
Bugs and requests
Square Invoices
Reported bugs
3 issues- Invoices not updating correctly
- Issues with connecting card readers
- Problems with account deactivation and fund holds
Requested features
5 requests- 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
Reported bugs
1 issue- App not opening
Requested features
2 requests- Add option to get client signature
- Add signature of the person who made the estimate
In-app purchases
Square Invoices
- Invoices Plus1 Month trial$19.991 Month
Estimate Maker Flex
- 1 Month Subscription$5.991 Month
- 1 Year Subscription$49.991 Year
Questions
Is Square Invoices free?
Is Estimate Maker Flex free?
Which has better reviews, Square Invoices or Estimate Maker Flex?
Do Square Invoices or Estimate Maker Flex have ads?
Which is updated more often, Square Invoices or Estimate Maker Flex?
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