SIR: Simple Invoice, Receipt & Inventory Manager (Lifetime Subscription) for $39

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Only $39
Expires April 13, 2023 23:59 PST
Buy now and get 80% off


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. Get SIR app and stay organized and in control, while saving time for concentrating on your business itself.

4.9/5 stars on Google Play Store:
★ ★ ★ ★

4.8/5 stars on App Store:
★ ★ ★ ★

  • 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


  • 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

★ ★ ★ ★ ★

“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.”

★ ★ ★ ★ ★

“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!”

★ ★ ★ ★ ★

“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.”


System Requirements

  • iOS 12.0 or later
  • iPadOS 12.0 or later
  • Android 6.0 or later

Important Details

  • 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



Sourced from: Stacksocial

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