Comparison

Invoice Maker + Bill Generator vs Spark

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

Head to head
About

Invoice Maker + Bill Generator

Create and send unlimited invoices, estimates, quotes, and receipts for free. This app simplifies bookkeeping for small businesses and freelancers with customizable designs, secure cloud backup, and flexible payment options. Generate professional documents in seconds and manage all your transactions in one place.

Highlights
  • Unlimited invoice creation
  • Customizable invoice design
  • Generate estimates and quotes
  • Create and send receipts
  • Secure cloud backup
  • Flexible payment methods
  • PDF report export
Features
Read full description

FREE Unlimited Invoice Maker—Invoice24: The #1 Award-Winning App for Small Businesses Send unlimited invoices, estimates, quotes and receipts for FREE. Discover a powerful yet easy-to-use invoice maker trusted by over 3,000,000 business owners and freelancers across over 170 countries. Need Invoices, Estimates, Quotes & Receipts? Here’s How Invoice24 Simplifies Your Bookkeeping • Easily create custom invoices, estimates and quotes using the best FREE invoice maker app. • Save time and money - send business invoices in seconds with a quick 5-minute setup. • Send out invoices via WhatsApp, text, email and download PDF files. • Get quotes, agreements, and proposals signed directly in-app. • Generate receipts on the go with the fast and simple receipt maker. Unlike other invoice apps, Invoice24 enables you to create and send professional business invoices, estimates, quotes and receipts within seconds, all for free. Simply input your customer details, add invoice items, review, and hit send! Invoice24 supports businesses across all industries—freelancers, contractors, tradespeople, digital services, and more. Secure Cloud-Based Invoice Maker for Your Business Invoice24 keeps your data secure with cloud backup, so your invoices and transaction details are accessible anytime, anywhere, via secure login credentials. FEATURES FOR BUSINESS OWNERS: Simplify Invoicing, Estimates, Quotations & Proposals Easy Invoice Maker & Estimate App Create and send invoices, quotes or estimates in seconds. Get real-time notifications for paid and outstanding invoices. Save time by setting up recurring invoices. Create Estimates for your Clients When the job is done, convert estimates into invoices with a tap. Track invoices to keep up with every payment. Customisable Invoice Design Personalise your professional invoices. Add necessary tax fields, include customer details, and choose invoice items to fit your business needs. Add a logo for your business. Sync the colour of your logo to your invoice. Quotation Maker Create a quote template for your project. Share quotes with your customer and save it for invoicing. Convert a quotation into an invoice within seconds. Fast One-Click Receipt Maker Quickly generate and send receipts once payments are recorded in the app. You’ll be prompted as soon as a payment is logged. Simple PDF Report Export Export PDF reports for invoices, estimates, and payment summaries. Organise reports by month, customer, or item to streamline accounting and bookkeeping. Flexible Payment Methods Handle simple or complex transactions and billing effortlessly. Accept payments via American Express, Visa, MasterCard, PayPal, and more. Send instant receipts and manage all payments in one app. Detailed Invoice Reporting for Reconciliation and Accounting Track income, prepare taxes, and manage bookkeeping with intuitive transaction reports. Use them to guide business decisions. Comprehensive App Support Get active support with responses within 12 hours. Why Choose Invoice24? Invoice24 is the most flexible, all-in-one custom invoice maker and estimate app for freelancers and small businesses. Automate payment reminders, get paid faster, and stay on top of your records with ease. Additional Features of Invoice24 • Invoice hours worked, services rendered, and products sold. • Convert estimates into invoices effortlessly. • Send receipts in just two clicks. • Add credit card surcharges for clients if needed. • Accept payments via credit cards and other popular methods. • Automatic sync across all devices. • Import customer details directly from your contact list. • Call or email clients straight from the app’s customer list. • Schedule automatic overdue payment reminders. Make bookkeeping, accounting and invoicing easier than ever with Invoice24—your trusted invoice, estimate, quote and receipt maker app. We always want to hear from you! Please email us with feedback at: hello@i24app.com https://i24app.com

About

Spark

Create and send professional invoices and estimates quickly and simply. Save templates for efficiency, track account history, and add discounts or taxes. Share invoices in various formats and attach images or notes.

Highlights
  • Create professional invoices and estimates
  • Save invoice templates for efficiency
  • Track customer account history
  • Add product or total discounts
  • Edit taxation per item or total
  • Share via email, text, PDF, or messengers
  • Attach images and notes to invoices
Features
Read full description

Spark Invoice is the most efficient way to create and send professional invoices and estimates to your customers and partners. Generate an invoice quickly and simply. You can create a new invoice just in a few clicks. Save templates to reach the full process optimization. Don't waste time entering the same data and filling in the same lines. You need to add information about your company, product or service, and the data of your customers only once to save the template. We made the interface as intuitive as possible but at the same time functional. It takes less than a minute to share the invoice with the client or partner. Key features: Account history. You can track the complete information about the past invoices of each customer in order to check quotations, print, or send an invoice at any time. Product discount or total cost You can add a discount for a product or for a total amount. Win loyalty of your partners and customers. Edit taxation Impose taxes per item or provided service, or the total amount in the check, including or excluding interest rate. Share in any appropriate form Sending by email, text, print, or PDF. Share the file in any messenger used by you or client. Attach images and notes Add multimedia files and text docs in the form of notes for tracking customer history. Minimal design You can enjoy a minimal design, which focuses on important information and doesn’t divert your attention to unnecessary details. Corporate logos You can add your company logo so that customers can immediately identify your invoice. Spark Invoice Maker App Subscription: You will gain full access to the invoice generator with unlimited Invoices Two paid subscriptions are available as follows: -Monthly at $8.99 or equivalent -Annually at $68.99 or equivalent * Prices may vary, see inside the app for exact prices. -You may cancel or manage the free trial or any of the paid subscriptions from your iTunes account settings. Auto-renewal may also be turned off via the account settings in iTunes. -Your account will be charged for renewal of the chosen subscription within 24-hours prior to the end of the current subscription period. -Cancellation of the current active subscription is not possible during the active subscription period. -Paid subscriptions automatically renew within 24-hours prior to the end of the current active subscription period. -Note that prices of paid subscriptions may vary depending on your country. The actual amount charged will be presented to you in your local currency at the time of first purchase. You can read our Privacy Policy and Terms of Use via the following links: Privacy policy: https://mafooly.com/apps/spark-invoice-privacy-policy/ Terms of use: https://mafooly.com/apps/spark-invoice-terms-of-use/ If you have any questions or comments, don't hesitate to contact us. We also appreciate your rating of the app. https://sparkinvoicemaker.com Enjoy!

Screenshots

Invoice Maker + Bill Generator4 screens
Spark4 screens

Verdict

The call

The clearest difference is in-app purchases: Invoice Maker + Bill Generator at none against Spark's 2. Invoice Maker + Bill Generator also leads on rating (5.0 vs 4.8). Spark's advantage is ratings volume (84 vs 4) and iOS requirement (11.0 vs 15.1). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Spark sells 2 in-app purchases, starting at $8.99 per month. Invoice Maker + Bill Generator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Invoice Maker + Bill Generator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Spark has 84 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 92% of Invoice Maker + Bill Generator's written reviews are positive against 88% of Spark's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 5 level
Invoice Maker + Bill Generator versus Spark: the parameters behind the verdict, then further details
ParameterInvoice Maker + Bill GeneratorSpark
PriceFreeFree
Rating5.0 (4 ratings) — better4.8 (84 ratings)
Positive reviews92.1% of reviews — better88.2% of reviews
Number of ratings484 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.111.0 — better
Further details — not scored
Size92 MB60 MB
Age rating4+4+
Developeri24 LimitedVECTOR WAVE TECH PTE. LTD.

Customer experience

Invoice Maker + Bill Generator

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews38 reviews
Positive92.1%
Neutral0.0%
Negative7.9%

Spark

All ratings84 ratings
Positive95.2%
Neutral1.2%
Negative3.6%
Written reviews17 reviews
Positive88.2%
Neutral0.0%
Negative11.8%

In-app purchases

None

Invoice Maker + Bill Generator

No in-app purchases

2 purchases

Spark

Subscriptions2
  • Invoice Generator Monthly$8.991 Month
  • Invoice Generator Yearly$68.991 Year

Questions

Is Invoice Maker + Bill Generator free?
Invoice Maker + Bill Generator is free to download, with no in-app purchases.
Is Spark free?
Spark is free to download, with in-app purchases available.
Which has better reviews, Invoice Maker + Bill Generator or Spark?
Invoice Maker + Bill Generator is rated higher. Invoice Maker + Bill Generator averages 5.0 out of 5 from 4 ratings, while Spark averages 4.8 from 84 ratings.
Do Invoice Maker + Bill Generator or Spark have ads?
Neither Invoice Maker + Bill Generator nor Spark shows ads.
Which is updated more often, Invoice Maker + Bill Generator or Spark?
Invoice Maker + Bill Generator ships an update every 2 weeks, and Spark every 2 weeks. Most recently, Invoice Maker + Bill Generator was updated on October 17, 2026 and Spark on October 14, 2026.

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