Comparison

Admin vs Simple Invoice Maker & Receipt

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

Head to head
About

Admin

Features
Read full description

Admin system to support club registrars and schedulers to manage online registrations products, online registrations, and member profiles. Game and practice schedulers are provided tools to manage game and practice schedules.

About

Simple Invoice Maker & Receipt

Streamline your business finances by creating and sending professional invoices, estimates, and receipts. Manage inventory, track payments, and generate reports for easier tax filing. Get paid faster with integrated payment options.

Highlights
  • Create professional invoices, estimates, and receipts
  • Manage inventory with low stock reminders
  • Accept online and in-person payments
  • Track partial payments and deposits
  • Generate reports for bookkeeping and tax filing
  • Cloud-based data storage
  • Multi-currency and multi-language support
Features
Read full description

Create, send & track invoices, estimates, receipts & inventory on your phone and keep your finances organized. Send the invoice before you leave your customer. SIR helps you create professional invoices, estimates and receipts in seconds. Introducing the most user-friendly and quick invoicing app you’ll ever use. Manage your whole invoicing game and inventory management from this single platform. SIMPLE INVOICE MAKER Make professional invoices easily in a few simple steps. Include your company logo, brand color, and information with our templates. Stay organized with our invoice tracker by sending invoices quickly via email or other messaging tool and receive notices once they read your messages. INVENTORY MANAGEMENT Discover inventory control like no other. SIR is the only app that allows users to add multiple companies and warehouses, and assign multiple users. Our inventory management makes tracking, recording, and stock updating easy and you’ll even get low stock reminders. GET PAID FASTER Accept online or in-person payments via credit card, debit card, Stripe or PayPal and get paid faster. Comparable to Square Point of Sale (POS), PayPal Business, and other payment systems. Easy Google Pay & Apple Pay options are available. PROFESSIONAL ESTIMATES MAKER Create professional estimates that guarantee you get the job. Our invoice maker app converts estimates to invoices with just one click. CREATE SMART RECEIPTS With our receipt maker, instantly create purchase orders and smart receipts once you receive payment. Easily keep track of all unpaid invoices so you never miss a payment. ADVANCED PAYMENTS MANAGEMENT Keep track of partial payments and deposits, and issue payment vouchers and debit/credit notes for customers. View the database of customers and suppliers in one place and keep things organized. TRACK & PAY TAXES Don’t stress about organizing or submitting your taxes for your small business! SIR gives you an easy way to trace and export reports for easier tax filing and payment. BOOKKEEPING REPORTS Stock management isn’t all we can do. You can export reports to PDF for bookkeeping and legal requirements with SIR. ADDITIONAL FEATURES - All data is cloud-based. - Add multiple currencies & view in multiple languages. - Attach photos, include payment information, payment terms, due dates, discounts, taxes, shipping details, notes, and more. - Share documents via email, WhatsApp, print or PDF. - Import customers & suppliers from your phone contacts. - Send auto-generated, professionally designed invoice reminders and thank you notes to customers - Multi-user control for your small business - Perfect to use alongside Invoice Simple, Bookipi - Billing Estimate, Invoice2go, Tiny Invoice, Easy Invoice Maker, Billdu, Zoho Inventory, QSR Inventory, Freshbooks, Xactimate, and more. Download SIR invoice maker app now. PRICING With the free tier, you get one business, one user, one invoice, one estimate, one receipt and one purchase order for free so you can try SIR before you upgrade. Then upgrade in-app for unlimited access. Subscribe to the Annual Package for $35.99 (or local equivalent) and save 70%, with a 3-day free trial. Pay $3.99 (or local equivalent) for monthly plan. Assign unlimited additional users with limited or unlimited access and add multiple businesses for free if subscribed. Automatic renewal of subscription by credit card through your iTunes account. You can turn off auto-renewal at any time. Your subscription automatically renews unless auto-renewal is turned off at least 24 hours before the expiry of the active subscription. An active subscription cannot be canceled before the subscription expires. Any unused portion of a free trial period will be forfeited when the user purchases a paid subscription. Terms of use: https://sir-app.com/terms-and-conditions/

Screenshots

Simple Invoice Maker & Receipt4 screens

Verdict

The call

The clearest difference is in-app purchases: Admin at none against Simple Invoice Maker & Receipt's 5. Admin also leads on ads (none vs shown) and update cadence (every 2 weeks vs monthly). Simple Invoice Maker & Receipt's advantage is device support (3 vs 1). On price and iOS requirement 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. Simple Invoice Maker & Receipt sells 5 in-app purchases, starting at $3.99 per month. Admin asks for nothing beyond the download.

UpkeepUpdate frequency

Admin ships an update every 2 weeks, Simple Invoice Maker & Receipt monthly. The most recent releases landed on May 15, 2026 and July 9, 2026 respectively.

Scorecard4 real differences · 6 level
Admin versus Simple Invoice Maker & Receipt: the parameters behind the verdict, then further details
ParameterAdminSimple Invoice Maker & Receipt
PriceFreeFree
Rating—4.1 (35 ratings) — better
Positive reviews—73.9% of reviews
Number of ratings—35 — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS11.011.0
Further details — not scored
Size79 MB30 MB
Age rating4+4+
DeveloperSportzSoft Solutions IncSK Tech Systems LLC

In-app purchases

None

Admin

No in-app purchases

5 purchases

Simple Invoice Maker & Receipt

Subscriptions2
  • Monthly Subscription$3.991 Month
  • Sir Invoices Annually3 Days trial$17.991 Year
One-time3
  • Buy additional companiesFree
  • Buy additional users$99.99
  • Lifetime$99.99

Questions

Is Admin free?
Admin is free to download, with no in-app purchases.
Is Simple Invoice Maker & Receipt free?
Simple Invoice Maker & Receipt is free to download, with in-app purchases available.
Do Admin or Simple Invoice Maker & Receipt have ads?
Simple Invoice Maker & Receipt shows ads; Admin does not.
Which is updated more often, Admin or Simple Invoice Maker & Receipt?
Admin ships an update every 2 weeks, and Simple Invoice Maker & Receipt monthly. Most recently, Admin was updated on May 15, 2026 and Simple Invoice Maker & Receipt on July 9, 2026.

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