Comparison

Spark vs Invoice Maker by SPK

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

Head to head
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!

About

Invoice Maker by SPK

Create and send professional PDF invoices and estimates quickly and easily. This ad-free, watermark-free app is ideal for small business owners, consultants, and freelancers on the go. Customize templates, track clients, and manage your billing efficiently.

Highlights
  • Create unlimited invoices and estimates
  • No ads or watermarks
  • Customizable invoice fields
  • Client list management
  • Multiple sharing options (email, WhatsApp, text)
  • Convert estimates to invoices
  • Company logo and signature upload
Features
Read full description

Invoice Maker+ is the #1 invoice app available today! It is an award-winning business utility app with NO ADS and NO WATERMARKS. It is the ideal on-the-go mobile solution for small business owners, consultants, contractors, and freelancers in all industries! Our easy-to-use generator allows you to create and send professional PDF invoices and estimates to your customers within seconds. Create invoices and estimates wherever you are! You can send an invoice while in the office, home, car, and even while you are still with your customer! Share via email, WhatsApp, text, print, and more! Our professionally designed template is sophisticated, clean, modern, and attractive, and the customization features allow you to add as much level of detail as you’d like! --- Features: * Create and Share UNLIMITED invoices and estimates with NO ADS and NO WATERMARKS * Select your region preference to customize your currency and date format * Preview via PDF while the invoice or estimate is being created * Customize invoice fields including billing date, due date, item name, item description, quantity, rate, item discount, shipping, tax, overall discount, etc. * Create, track, and store your client list * Deliver via customized email, whatsapp, text, messenger, print, and more * Track and organize your invoices and estimates using our filters and labels (“Outstanding”, “Paid”, “Open”, and “Closed”) * Upload a company logo to personalize your invoices and estimates * Include personal signature * Add payment details (bank transfer, check payable, paypal email) * Convert estimates to invoice with the press of a button * Duplicate an existing invoice or estimate with the press of a button (major time-saver for recurring customers!) * Mark an invoice or estimate as “Draft” if still a work in progress * Store and organize your invoices in one place so filing taxes is quick and easy * Automatically add names to your client list from your phone contacts * Add any additional notes you wish, such as payment terms, company policy, a “Thank You” note, etc. --- Privacy Policy: https://www.iubenda.com/privacy-policy/17124454 Terms and Conditions: https://www.iubenda.com/terms-and-conditions/17124454

Screenshots

Spark4 screens
Invoice Maker by SPK4 screens

Verdict

The call

The clearest difference is monetization model: Invoice Maker by SPK at free with in-app purchases against Spark's subscription. Invoice Maker by SPK also leads on ratings volume (911 vs 83) and update cadence (weekly vs every 2 weeks). Spark's advantage is review sentiment (88% vs 73%) and iOS requirement (11.0 vs 13.0). On price, rating, ads and in-app purchases 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 and Invoice Maker by SPK sells 9 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Spark against 4.8 for Invoice Maker by SPK. That said, the two scores are not equally well evidenced: Invoice Maker by SPK has 911 ratings behind it against 83, so its average is the more settled of the two. Written reviews are what separate them: 88% of Spark's written reviews are positive against 73% of Invoice Maker by SPK's.

UpkeepUpdate frequency

Spark ships an update every 2 weeks, Invoice Maker by SPK weekly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Spark versus Invoice Maker by SPK: the parameters behind the verdict, then further details
ParameterSparkInvoice Maker by SPK
PriceFreeFree
Rating4.8 (83 ratings)4.8 (911 ratings) — better
Positive reviews88.2% of reviews — better73.3% of reviews
Number of ratings83911 — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size60 MB30 MB
Age rating4+4+
DeveloperVECTOR WAVE TECH PTE. LTD.SPK Studios LLC

Customer experience

Spark

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

Invoice Maker by SPK

All ratings906 ratings
Positive95.6%
Neutral1.4%
Negative3.0%
Written reviews30 reviews
Positive73.3%
Neutral10.0%
Negative16.7%

Bugs and requests

Spark

Not enough reviews yet to summarise bugs or requests.

Invoice Maker by SPK

Reported bugs

2 issues
  • Invoices not updating correctly
  • Inability to unsubscribe from paid features

Requested features

3 requests
  • Ability to sync data across devices
  • Increased character limit for item descriptions
  • Improved customer support

In-app purchases

2 purchases

Spark

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

Invoice Maker by SPK

Subscriptions9
  • My Invoice Generator3 Days trial$4.991 Month
  • The Invoice Maker3 Days trial$7.991 Month
  • Invoice Maker App3 Days trial$9.991 Month
Show 6 more
  • Invoice Maker Pro3 Days trial$9.991 Month
  • Smart Invoice Maker3 Days trial$39.991 Year
  • Quick Invoice Maker3 Days trial$59.991 Year
  • Invoice Maker Professional3 Days trial$69.991 Year
  • App Invoice Maker3 Days trial$89.991 Year
  • Invoice Maker Plus3 Days trial$89.991 Year

Questions

Is Spark free?
Spark is free to download, with in-app purchases available.
Is Invoice Maker by SPK free?
Invoice Maker by SPK is free to download, with in-app purchases available.
Which has better reviews, Spark or Invoice Maker by SPK?
Invoice Maker by SPK is rated higher. Spark averages 4.8 out of 5 from 83 ratings, while Invoice Maker by SPK averages 4.8 from 911 ratings.
Do Spark or Invoice Maker by SPK have ads?
Neither Spark nor Invoice Maker by SPK shows ads.
Which is updated more often, Spark or Invoice Maker by SPK?
Spark ships an update every 2 weeks, and Invoice Maker by SPK weekly. Most recently, Spark was updated on October 27, 2026 and Invoice Maker by SPK on October 24, 2026.

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