Simple Invoice & Receipt Maker (SIR) has been designed to make it easy for business owners to control all their core business activities right from their fingertips; be it tracking inventory, speedy invoicing, payment follow-ups, issuing estimates, purchase orders, receipts, etc. at all times and most importantly at very efficient and affordable pricing.
Now, thanks to a new Apple World Today deal, you can get a lifetime subscription to the SIR app for only US$49. That’s 75% off the regular price. This will help you stay organized and in control, while saving time for concentrating on your business itself.



SIR Description
- Invoicing Customers in seconds. Create professional-looking invoices within a few clicks from anywhere
- Get paid faster. Accept online or in-person payments via credit card, debit card, or PayPal
- Invoice read notice. Ensures your client didn’t miss the invoice
- Invoice due date reminders. Forward a professionally designed due date reminder template to your client to get paid on time
- Professional estimates generator. Create instant estimates with as many details that can guarantee you get the job
- Purchase orders maker. Organizes your purchases & lets you transact swiftly with your supplier
- Receipts creator. Issue a signed receipt upon receiving payment from your client to track unpaid invoices
- Payment vouchers generator.Create a payment voucher when you pay your suppliers with an option to get supplier signature as proof of payment for future records
SIR Features
- Unlimited users
- Unlimited businesses
- Unlimited invoices
- Unlimited receipts
- Unlimited product inventory tracking
- Unlimited estimates
- Unlimited purchase orders
- Unlimited items & products
- Unlimited customers & suppliers
- Stripe & PayPal integrations
- Add payment details to invoices
- In-built POS
- Send professionally-designed invoice reminders
- Send automated thank-you notes to customers
- Track unpaid & overdue invoices
- Multiple automated reports
- Multiple warehouses
- Multiple languages
- Available on iOS and Android
SIR Reviews
4.9/5 stars on Google Play Store: ★ ★ ★ ★.9
4.8/5 stars on App Store: ★ ★ ★ ★.8
SumonXRD ★ ★ ★ ★ ★
“I am very thankful and happy that I discovered this app as this is life-changing! I am a freelance online business manager and this app just helped me look like I’m a real professional when sending invoices to my clients.”
LexyTimssUSA ★ ★ ★ ★ ★
“So stressed with other invoice apps and all the issues. You need these things to be really accurate. Glad I found this new app! So easy to use and I can now save tons of trees as I have gone completely paperless!”
Benjamin&Moriss ★ ★ ★ ★ ★
“Features are great, it is user friendly and I think my favorite is that I get a message when the clients have seen my invoices (important thing for me so I know when to follow up) and when they’re paid.”
SIR System Requirements
- iOS 12.0 or later
- iPadOS 12.0 or later
- Android 6.0 or later
Details of the Deal
- Length of access: lifetime
- Redemption deadline: redeem your code within 30 days of purchase
- Access options: mobile, iPad, tablet
- Max number of device(s): unlimited
- Only available to new users
- Version: 3.0.3
- Updates included
- Have questions on how digital purchases work? Learn more here
- Unredeemed licenses can be returned for store credit within 30 days of purchase. Once your license is redeemed, all sales are final.