Comparison

Invoice & Estimate Maker vs OPS Merchant

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

Head to head
About

Invoice & Estimate Maker

Quickly generate professional invoices and estimates for your clients. Customize templates with your business details, add unlimited customers and services, and track payments on the go. Convert estimates to invoices with a single tap.

Highlights
  • Create invoices and estimates
  • Customize company details and logo
  • Unlimited customers, products, and services
  • Professional invoice themes
  • Track payments
  • Email invoices in PDF format
  • Convert estimates to invoices
Features
Read full description

Invoice & Estimate Maker app help you to quickly create professional invoices and send them to your customers. Its a perfect app for web designers, contractors, musicians, freelancers and all kind of small business owners. You'll be able to create invoices and estimates with-in few seconds. This business app allows you to create unlimited customers, products and services. You can choose from highly professional templates to generate invoice PDF and send it to your customer. You can enter all information about your business i.e. your company name, logo, address, email, phone number and more. Manage all your invoices and billing on the go. The app shows you all outstanding invoices and help you to get paid faster. This app does not requires you to have an active internet connection. So you can invoice your customer before leaving the place where there is no network available. The app also keeps track of all the payments made towards an invoice. You can also sign the invoice or estimate on your device. Features: * Create invoices and estimates. * Customize company details and logo. * Add unlimited customers, products and services. * Professional invoice themes. * Realistic invoice signature. * Track payments. * Configure multiple taxes (i.e. Service Tax, VAT etc). * Discount on item or total. * Email invoice in PDF format. * Notes to specify terms / conditions. * Convert estimate to invoice with just a single tap. * iCloud backup & restore. * Import customer from contact address book. * Statistics * Add "Paid" stamp on paid invoices. * Fast & easy interface. Please leave a 5 star rating if you find this app useful. Your support help us keep improving this app. Information about the auto-renewable subscription - You can purchase for monthly subscription ($1.99/month) or annual subscription ($19.99/year). - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - For more information on how to cancel subscription, please review - https://support.apple.com/en-us/HT202039 - Privacy policy: http://www.svgapps.com/privacy-policy - Terms of use: http://www.svgapps.com/terms

About

OPS Merchant

Features
Read full description

The OPS Merchant app is the easiest and fastest way for you to access services & support. Tickets are created and immediately sent to our support teams for quick response. Get notified of status updates, receive responses for support requests and more, wherever you are. Features • Create new service tickets • Access all tickets submitted • Receive real-time status updates • View monthly statements • View Chargeback/Retrieval cases • View Daily/Weekly/Monthly Sales Reports

Screenshots

Invoice & Estimate Maker4 screens
OPS Merchant3 screens

Verdict

The call

The clearest difference is in-app purchases: OPS Merchant at none against Invoice & Estimate Maker's 2. Invoice & Estimate Maker's advantage is update cadence (every 3 months vs every 38 months) and chart position (#163 vs unranked). On price, ads and device support 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. Invoice & Estimate Maker sells 2 in-app purchases, starting at $1.99 per month. OPS Merchant asks for nothing beyond the download.

UpkeepUpdate frequency

Invoice & Estimate Maker ships an update every 3 months, OPS Merchant every 38 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

Scorecard4 real differences · 7 level
Invoice & Estimate Maker versus OPS Merchant: the parameters behind the verdict, then further details
ParameterInvoice & Estimate MakerOPS Merchant
PriceFreeFree
Rating4.8 (12K ratings) — better—
Positive reviews74.1% of reviews—
Number of ratings12K — better—
Update frequencyEvery 3 months — betterEvery 38 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
Best chart rank#163 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size93 MB33 MB
Age rating4+4+
DeveloperSVG AppsBluu, Inc.

Bugs and requests

Invoice & Estimate Maker

Reported bugs

3 issues
  • Quantity and price changes not saving correctly
  • Inability to edit customer information
  • Losing all past estimates/invoices when switching devices

Requested features

5 requests
  • Add ability to track material expenses and payroll
  • Allow adding multiple phone numbers and emails per client
  • Implement a way to back up data
  • Provide a phone number for customer support
  • Add option to sort/track created sections (e.g., labor, materials)

OPS Merchant

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Invoice & Estimate Maker

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Annual Subscription$19.991 Year
None

OPS Merchant

No in-app purchases

Questions

Is Invoice & Estimate Maker free?
Invoice & Estimate Maker is free to download, with in-app purchases available.
Is OPS Merchant free?
OPS Merchant is free to download, with no in-app purchases.
Do Invoice & Estimate Maker or OPS Merchant have ads?
Neither Invoice & Estimate Maker nor OPS Merchant shows ads.
Which is updated more often, Invoice & Estimate Maker or OPS Merchant?
Invoice & Estimate Maker ships an update every 3 months, and OPS Merchant every 38 months. Most recently, Invoice & Estimate Maker was updated on October 29, 2026 and OPS Merchant on October 26, 2026.

Other comparisons