Comparison

Invoice Maker vs PreventivOk

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

Head to head
About

Invoice Maker

Streamline your billing and get paid faster with this intuitive invoicing app. Create professional, customizable invoices and estimates with ease, track payments in real-time, and manage client information efficiently. Access your data from anywhere with cloud-based technology.

Highlights
  • Customizable invoices and templates
  • Cloud-based access
  • Scheduling and reminders
  • Real-time payment tracking
  • Add logo and signature
  • Client management
Features
Read full description

Make an invoice or estimate on your phone in about a minute. Send it as a link or a PDF. Your client opens it, pays by card, and you get a notification. For tradespeople, freelancers and small service businesses. Invoices and estimates • Pick a template, add your logo, signature and colours • Add line items from your saved products and services, with tax and discount • Invoice numbers count up on their own: INV-0001, INV-0002… • Clients accept estimates (quotes) online. Turn one into an invoice without retyping • Templates in English, German, Spanish, French, Italian and Portuguese, in any currency Getting paid • Send a link instead of an attachment. Your client reads the invoice in the browser and downloads the PDF • A Pay button on the link and on the PDF: card, Apple Pay or Google Pay, paid into your own Stripe account • A notification the first time your client opens the invoice • Record cash, bank transfers and part payments, and see what is still owed • Recurring invoices: weekly, monthly or quarterly, created and emailed with the PDF (Pro) Bookings and appointments • Your own booking page. Share the link or QR code and clients book a time • All your appointments on one calendar, with reminders • Turn any job into an invoice Clients and products • Import clients from your contacts • Products and services with prices and tax • Track stock and scan a barcode to add a product Reports • Invoiced, collected and overdue, by month or year • See who owes you and how long each client takes to pay • Top clients and products. Share the report as a PDF Card payments need a free Stripe account. Terms of use: https://invoiceglobal.app/terms Privacy policy: https://invoiceglobal.app/privacy-policy

About

PreventivOk

Features
Read full description

Create professional quotes, customize your PDF and share it with your clients. PreventivOk helps tradespeople, freelancers and small businesses manage quotes, clients and costs in one app, with support from Poki, the built-in AI assistant available with the Premium plan. FROM JOB DETAILS TO A QUOTE • Add services, tasks, quantities and prices. • Use suggestions and reuse saved items. • Calculate totals automatically. • Save, edit and duplicate quotes for your next jobs. • Track quote status and find previous quotes. PROFESSIONAL PDFS TO SHARE Present your clients with a clear, well-organized document. Export your quote as a PDF and share it directly from the app. With the Premium plan, you can customize the PDF template and fields, and add a signature. POKI: YOUR AI ASSISTANT, WITH VOICE INPUT Type or dictate your request: Poki helps you find information and prepare client records and quotes. Provide client details, job items and prices, then review the draft and confirm the action. Dictation lets you compose requests without typing everything, even when you’re working away from the office. Poki requires an active Premium plan and is subject to the plan’s usage limits. CLIENTS AND HISTORY AT YOUR FINGERTIPS Organize your contacts and view the quotes associated with each client. Find the information you need when preparing a new proposal or returning to a previous job. TRACK COSTS AND BUSINESS PERFORMANCE Record business expenses and view statistics and summaries to track costs, earnings and how your business is doing. BUILT FOR YOUR WORK PreventivOk is designed for plumbers, electricians, painters, carpenters, construction businesses, technicians, consultants and other professionals who prepare quotes for their clients. GET STARTED WITH THE FREE PLAN Create your first quote and discover tools to organize your work. Available features and usage limits depend on your chosen plan; some features require a subscription. Terms of Use: https://www.preventivok.com/termsOfUse Privacy Policy: https://www.preventivok.com/privacyPolicy

Screenshots

Invoice Maker4 screens
PreventivOk4 screens

Verdict

The call

The clearest difference is update cadence: PreventivOk at fortnightly against Invoice Maker's monthly. On price, ads, in-app purchases 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 Maker sells 2 in-app purchases, starting at $2.99 per month and PreventivOk sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Invoice Maker ships an update monthly, PreventivOk fortnightly. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

Scorecard1 real difference · 8 level
Invoice Maker versus PreventivOk: the parameters behind the verdict, then further details
ParameterInvoice MakerPreventivOk
PriceFreeFree
Rating4.9 (14 ratings) — better—
Number of ratings14 — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better16.6
Further details — not scored
Size90 MB45 MB
Age rating4+4+
DeveloperNadim RadjabAntonio Augello

In-app purchases

2 purchases

Invoice Maker

Subscriptions2
  • One Month Subscription$2.991 Month
  • Yearly Subscription7 Days trial$26.991 Year
2 purchases

PreventivOk

Subscriptions2
  • Advanced$2.991 Month
  • Premium$4.991 Month

Questions

Is Invoice Maker free?
Invoice Maker is free to download, with in-app purchases available.
Is PreventivOk free?
PreventivOk is free to download, with in-app purchases available.
Do Invoice Maker or PreventivOk have ads?
Neither Invoice Maker nor PreventivOk shows ads.
Which is updated more often, Invoice Maker or PreventivOk?
Invoice Maker ships an update monthly, and PreventivOk fortnightly. Most recently, Invoice Maker was updated on October 20, 2026 and PreventivOk on October 12, 2026.

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