Comparison

Invoice Maker vs OpenMat

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

Head to head
About

Invoice Maker

Create professional invoices and estimates quickly and easily. Manage billing, track payments, and keep your business finances organized on the go. Send invoices via email or share links directly to get paid faster.

Highlights
  • Create and send invoices in seconds
  • Generate estimates and quotes
  • Track payments and unpaid invoices
  • Store client and payment data
  • Export PDF reports
  • Support for multiple currencies and tax rates
Features
Read full description

Invoice Maker helps freelancers, small business owners, and entrepreneurs create professional invoices and estimates in seconds. No more spreadsheets or complicated tools — now you can manage all your billing tasks in one powerful yet simple app. Send invoices, track payments, and keep your business organized — anywhere, anytime. With this fast and easy-to-use invoice generator and PDF template tool, you can send polished invoices, get paid faster, and stay in full control of your finances. Why Choose Invoice Maker: - Create & send invoices in seconds — professional templates, zero hassle; - Generate estimates and quotes instantly for your clients; - Send invoices via email, messengers, or share links directly; - Track payments & monitor unpaid invoices effortlessly; - Store all clients & payment data in one place; - Export PDF reports and track your business performance anytime; Key Features You’ll Love: - Simple and modern invoice templates; - Support for multiple currencies and tax rates; - Payment tracking; - Download and share invoices as PDF files; - Create professional receipts, bills, and quotes; - Manage clients, items, and services easily. Whether you’re sending your first invoice or managing hundreds every month, Invoice Maker helps you look professional and get paid on time — every time. Perfect For: Freelancers, consultants, contractors, small businesses, and anyone who wants a fast, reliable invoice & estimate app. From designers and developers to tradespeople and service providers — Invoice Maker makes billing simple for everyone. Subscription Details: - Free trial includes full access to all premium features; - Weekly, monthly, and annual plans available; - Subscriptions renew automatically unless canceled at least 24h before renewal; - Manage or cancel subscriptions in your App Store account settings; - Enjoy unlimited invoices, clients, and items with any active plan. Get Started Today: Make your business look professional and save hours on paperwork. Download Invoice Maker now — create, send, and track invoices effortlessly with our all-in-one invoice generator. Terms of Use: https://sites.google.com/view/inovice-maker-terms-of-use/home Privacy Policy: https://sites.google.com/view/inovice-maker-privacy-policy/home

About

OpenMat

Features
Read full description

OpenMat is the all-in-one management app for gyms, studios, and academies. Whether you run a martial arts dojo, yoga studio, CrossFit box, or fitness facility - manage your entire operation from your phone or tablet. MEMBER MANAGEMENT Keep detailed member profiles with contact info, emergency contacts, photos, and equipment sizing. Track member status, filter by program or rank, and manage enrolments across multiple programs. Support for family accounts with shared billing. MESSAGING Send messages to members using customisable templates with automatic personalisation. Push notifications keep members informed. BILLING & PAYMENTS (Pro) Integrated Stripe billing with recurring subscriptions, one-time charges, and payment tracking. Set up membership plans with trials, session-based pricing, or recurring fees. Track overdue payments, send payment links, and manage account credits. Members can view their billing history directly in the app. CLASS SCHEDULING Create weekly recurring classes and one-off sessions. Assign programs, instructors, times, and locations. Track attendance per class and view lesson history. ATTENDANCE & CHECK-IN Multiple check-in methods to suit your facility: - PIN-based self check-in for members (Pro) - Instructor check-in during class - Bulk check-in for busy sessions Track attendance history, view stats, and monitor trends. PROGRAMS & PROGRESSION TRACKING Support for BJJ, MMA, Karate, Judo, Taekwondo, Muay Thai, Yoga, CrossFit, Dance, Gymnastics, Swimming, and more. Customise rank and level systems to match your discipline — belts, stripes, levels, or any progression structure you need. Record promotions and track each member's progress history. LIVE CLASS TIMER Run classes with a built-in section timer. Set durations for warm-up, drilling, main workout, and cool-down. Track progress through each section in real time. MEMBER PORTAL (Pro) Give your members their own experience within the app: - View their schedule and upcoming classes - Check in to classes directly - Track attendance history and streaks - View progression and promotion history - Read messages from staff - Access the facility leaderboard KIOSK MODE (Pro) Turn any tablet into a front-desk check-in station. Members enter their PIN to check in, or staff can use bulk check-in mode for busy class times. DIGITAL WAIVERS Create and manage liability waivers with digital signatures. Members sign directly in the app, and signed waivers are stored as PDFs. STAFF MANAGEMENT Assign roles (Owner, Admin, Instructor) with granular permissions. Control who can view financials, manage billing, edit members, or access settings. WORKS FOR ANY DISCIPLINE Pre-configured support for martial arts, yoga, CrossFit, dance, gymnastics, swimming, personal training, and more. Customise terminology to match your business — students, athletes, clients, members, coaches, professors, instructors. FREE VS PRO Start free with up to 40 members, 3 staff members, and 1 location. Upgrade to Pro for unlimited classes, more members, Stripe billing, kiosk mode, messaging, attendance analytics, custom progressions, and a member portal with invites. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.openmat.fit/privacy/

Screenshots

Invoice Maker3 screens
OpenMat1 screens

Verdict

The call

The clearest difference is update cadence: OpenMat at every 9 days against Invoice Maker's every 8 months. 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 3 in-app purchases, starting at $4.99 per 7 days and OpenMat sells 2 in-app purchases, starting at $25.00 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Invoice Maker ships an update every 8 months, OpenMat every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
Invoice Maker versus OpenMat: the parameters behind the verdict, then further details
ParameterInvoice MakerOpenMat
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size39 MB68 MB
Age rating4+4+
DeveloperAigarai D.O.OSamer Haidar

In-app purchases

3 purchases

Invoice Maker

Subscriptions3
  • Weekly3 Days trial$4.997 Days
  • Monthly$8.991 Month
  • Yearly$89.991 Year
2 purchases

OpenMat

Subscriptions2
  • OpenMat Pro14 Days trial$25.001 Month
  • OpenMat Pro (Annual)14 Days trial$249.001 Year

Questions

Is Invoice Maker free?
Invoice Maker is free to download, with in-app purchases available.
Is OpenMat free?
OpenMat is free to download, with in-app purchases available.
Do Invoice Maker or OpenMat have ads?
Neither Invoice Maker nor OpenMat shows ads.
Which is updated more often, Invoice Maker or OpenMat?
Invoice Maker ships an update every 8 months, and OpenMat every 9 days. Most recently, Invoice Maker was updated on October 24, 2026 and OpenMat on October 25, 2026.

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