Comparison

Invoice Simple vs Sage Accounting

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

Head to head
About

Invoice Simple

Create and send professional invoices, estimates, and receipts quickly from your mobile device. This app helps individuals and growing businesses get organized, look professional, and get paid faster by accepting online payments.

Highlights
  • Create invoices, estimates, and receipts
  • Accept online payments
  • Customize invoices with logo and details
  • Organize client and product information
  • Send via email, text, or WhatsApp
  • Download as PDF
  • Get payment and opening alerts
Features
Currently charting
Read full description

Easily create & send professional invoices, estimates, and receipts on the go! The perfect tool for individuals and growing businesses that lets you quickly create a document on the spot while with your customer. For growing businesses who want: · A simple way to make estimates, invoices, and receipts fast · Professional-looking invoices that you can send from your mobile device · An easy way to accept online payments and stop chasing checks From a landscaping invoice or estimate to a receipt for entertainment supplies in your side gig, Invoice Simple is the app for your small business. START YOUR FREE TRIAL 6 WAYS INVOICE SIMPLE MAKES YOUR LIFE AS A BUSINESS OWNER EASIER 1. SIMPLE TO USE Designed to make sure you never have to waste time “figuring out” how to make it work. 2. INVOICE ANYWHERE Standing next to your client, in your truck, or sitting at your desk, there’s no quicker way to send an invoice. 3. GET ORGANIZED Keeping track is effortless. Your entire history is collected in one place, easy to find and read. Taxes are a breeze. 4. LOOK MORE PROFESSIONAL Create professional-looking invoices and estimates on the spot. 5. GET PAID FASTER Making it easy to get paid by accepting cards with simple fee structure and low rates that you can add to an invoice - no cost to you, as well as accept checks and cash. 6. INVOICE WITH CONFIDENCE Join hundreds of thousands of small businesses who rely on Invoice Simple, consistently a top-rated invoicing app. Easily customize every aspect of your invoice, estimate, or receipt: 1. Add your logo and business details 2. Include your banking details 3. Easy-add and import client details saved in your phone contacts 4. Customize tax and add discounts 5. Accept credit card payment with simple fee structure and low rates that you can add to an invoice - no cost to you, as well as accept checks and cash 6. Add product information and attach photos 7. Include your signature Send your invoice or estimate by email, text, WhatsApp, or download it as a PDF. Get instant alerts when it's opened, paid, or is overdue with instant mobile device and email notifications. You don’t have to limit yourself to cash and checks. Just select “accept online payments” and follow the simple steps to hook up your invoices to Invoice Simple Payments. PLANS: Start with a free trial, then choose the best plan for your business: Essentials For entrepreneurs to easily start sending estimates, invoices, receipts, and receive payments. · Up to 3 invoices per month · QR code payments · Online payments · Real time read receipts · Expense tracking · Top rated mobile and web apps Plus For small businesses to send nice-looking, easy to create documents on-the-go. Everything in Essentials, plus: · Up to 10 invoices per month · Add photos · Business owner signature · Autofill client & item info · Due date reminders Premium For small businesses to improve invoice organization and make online payments easy. Everything in Plus, along with: · UNLIMITED invoices per month · Customer support 1st response priority Invoice Simple, the ultimate invoice, receipt, & estimate maker: Send simple invoices using professional templates, invoice generator, PDF invoices and quotes, online payments, bill organizer, receipt and expense tracking, and business reporting—all rolled up into one easy-to-use app. When it's time to create an estimate, invoice, or receipt for your small business, Invoice Simple will work for you. Terms of use: https://www.invoicesimple.com/terms Privacy policy: https://www.invoicesimple.com/privacy

About

Sage Accounting

Manage your business finances on the go with this app. Create and send invoices and quotes, track expenses, record transactions, and view your business performance. It's designed for small businesses that need to manage finances away from the office.

Highlights
  • Create and send invoices
  • Generate and send quotes
  • Capture and track expenses
  • Record and categorize transactions
  • Manage customer contacts
  • View business performance reports
  • Sync data across devices
Read full description

Sage Accounting makes it easy to run your business on the go, reducing time on admin with simple Invoices, Quotes & Expenses. All-in-one app, the invoice maker, quote maker and expenses tracker, are ready at the touch of a button for your business account, whether you are self-employed or part of a small business. *Create a quote right there with your customer. *Create and send an invoice as soon as work is complete. *Capture an expense in seconds as soon as they happen. #1 Cloud Accounting Software All your information instantly stored, synced, and available on your iPhone, iPad and via the web, making Sage Accounting the perfect mobile solution for all types of small businesses, where business does not stop when they leave the office. New to Sage or just considering switching from your current provider? Visit the following link (www.sage.com/en-gb/sage-business-cloud/accounting), sign up to start your subscription, then download the app to use the easy accounting software on the move. Invoices – Create and Manage ● The Invoice maker helps you create and send an invoice for work you have done with the invoice template ● Track and manage unpaid and overdue invoices & record payments. ● The quote maker helps you create & send quotes for review and agreement by your customer. ● Convert a quote to an invoice and send it to your customer. ● Create products and service records including managing stock levels. Record Transactions ● The Expenses tracker help you manage money in, and money out transactions ● Attached a photo of a receipt or bill ● View the receipt or bill in Accounting. ● Record and view transactions when offline. View your performance ● See a picture of your performance this week, month, or year. ● See where your money is coming from and going to. ● Compare business performance from month to month this year or in previous years. ● View your data immediately in the Accounting web application. Find Transactions ● Simple list view of all your transactions ● Apply simple filters ● Search for a transaction Contacts ● Import the contacts you do business with from your iPhone or iPad ● Attach a contact to a transaction ● View contact details including their transactions Requirements: ● Device with iOS 13.6 or later Choose from 3 different subscriptions: 1. Sage Accounting Start 2. Sage Accounting Standard 3. Sage Accounting Plus Extend the power of Sage Accounting and grow your business using our range of connected apps, such as AutoEntry. You're in good hands with Sage. We're rated Excellent on Trustpilot (4.6/5) with 15,426+ customer reviews (as of 09/05/2022) With Sage Accounting, you can save up to 10 hours a week on your admin. There are no commitments and you can cancel any time. Sage has been top rated by Techradar between 2021 and 2022, as having the best MTD software in the market Sage Privacy Policy https://www.sage.com/en-gb/legal/privacy-and-cookies/ Sage UK Terms and Conditions https://www.sage.com/en-gb/legal/terms-and-conditions/sage-global-app-terms-and-conditions Sage IE Terms and Conditions https://www.sage.com/en-ie/legal/terms-and-conditions/sage-global-app-terms-and-conditions

Screenshots

Invoice Simple4 screens
Sage Accounting4 screens

Verdict

The call

The clearest difference is review sentiment: Invoice Simple at 64% against Sage Accounting's 12%. Invoice Simple also leads on ads (none vs shown) and rating (4.9 vs 4.5). On price, in-app purchases, monetization model 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 Simple sells 9 in-app purchases, starting at $6.99 per month and Sage Accounting sells 5 in-app purchases, starting at $12.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Invoice Simple holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Invoice Simple has 123K ratings behind it against 1.6K, so its average is the more settled of the two. Written reviews point the same way: 64% of Invoice Simple's written reviews are positive against 12% of Sage Accounting's.

UpkeepUpdate frequency

Invoice Simple ships an update every 2 weeks, Sage Accounting every 2 months. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 4 level
Invoice Simple versus Sage Accounting: the parameters behind the verdict, then further details
ParameterInvoice SimpleSage Accounting
PriceFreeFree
Rating4.9 (123K ratings) — better4.5 (1.6K ratings)
Positive reviews63.8% of reviews — better11.6% of reviews
Number of ratings123K — better1.6K
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#9 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.6
Further details — not scored
Size221 MB62 MB
Age rating4+4+
DeveloperZenvoice Inc.Sage Accounting

Customer experience

Invoice Simple

All ratings122,827 ratings
Positive97.5%
Neutral1.6%
Negative0.9%
Written reviews1,589 reviews
Positive63.8%
Neutral6.2%
Negative30.1%

Sage Accounting

All ratings34 ratings
Positive79.4%
Neutral2.9%
Negative17.6%
Written reviews95 reviews
Positive11.6%
Neutral10.5%
Negative77.9%

User reviews

Invoice Simple

From 123K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Professional-looking invoices
  • 🚀 Quick and simple
  • 👍 Saves time
  • 👍 Convenient mobile access

Room to improve

  • 💰 Expensive subscription
  • 🐛 Glitches and bugs
  • 🔀 Inconsistent features across platforms
  • 🔀 Confusing navigation
  • 🔀 Limited customization options

Sage Accounting

From 1.6K App Store ratings

What we love

  • 👍 Easy to use and navigate interface
  • 📱 Convenient mobile access for on-the-go invoicing
  • 📊 Clear financial reports and profit/loss tracking
  • 💰 Simple invoicing and expense tracking
  • 📦 Inventory tracking capabilities

Room to improve

  • 🐛 Frequent app crashes and freezing
  • 🔐 Persistent login and authentication issues
  • ⏱️ Extremely slow data loading times
  • 🌍 Geographic restrictions (UK/Ireland/Canada only)
  • 📸 Photo upload functionality broken or unreliable

Bugs and requests

Invoice Simple

Reported bugs

4 issues
  • Invoices not sending properly
  • App crashing or freezing
  • Inability to recover deleted invoices
  • Syncing issues between mobile and desktop

Requested features

6 requests
  • Add ability to rearrange line items
  • Improve search and filtering capabilities
  • Integrate with accounting software
  • Add option to track expenses and profitability
  • Allow multiple business profiles in one account
Show 1 more
  • Improve mobile and desktop app parity

Sage Accounting

Reported bugs

18 issues
  • App crashes when entering invoice amounts
  • Login loops and authentication failures
  • Session timeout issues despite 'keep me signed in' option
  • Data not loading or displaying correctly
  • Contacts disappearing after updates
Show 13 more
  • Invoice duplication issues
  • Text rendering problems on iPhone (overlapping text)
  • App crashes on iOS 13 and later
  • Photo upload causes app crash or image distortion
  • Address fields jumbling when adding customers
  • Missing latest quotes and invoices
  • Profit/loss trends tab not displaying money-in figures
  • Payment processing causing app crashes
  • Widgets disappearing from home screen
  • Account creation loops
  • Incompatibility with 2-step verification
  • Incorrect currency conversion calculations
  • Transaction categorization errors (showing refunds instead of payments)

Requested features

13 requests
  • Bank reconciliation on mobile app
  • P&L statements and balance sheets in app
  • Custom pricing options for customers
  • Better search functionality for contacts
  • Ability to switch between multiple businesses
Show 8 more
  • Invoice reference/purchase order number field
  • Accountant/agent multi-client access
  • Local data caching to reduce load times
  • Duplicate invoice functionality
  • Improved photo/receipt upload with better UX
  • Dark mode with proper contrast
  • Limited user permissions for employees
  • More frequent app updates and improvements

In-app purchases

9 purchases

Invoice Simple

Subscriptions9
  • Essentials Monthly$6.991 Month
  • Mobile subscription$10.991 Month
  • Monthly Side Business$10.991 Month
Show 6 more
  • Monthly Business Sub$11.991 Month
  • Monthly Subscription$11.991 Month
  • Monthly subscription2 variants$13.491 Month
  • Plus Monthly$14.991 Month
  • Monthly Standard Subscription$17.991 Month
  • Premium Monthly$21.991 Month
5 purchases

Sage Accounting

Subscriptions5
  • Sage Accounting Start IE$12.491 Month
  • Sage Accounting Start UK$16.491 Month
  • Sage Accounting IE$29.991 Month
Show 2 more
  • Sage Accounting Standard UK$34.991 Month
  • Sage Accounting Plus UK$43.991 Month

Questions

Is Invoice Simple free?
Invoice Simple is free to download, with in-app purchases available.
Is Sage Accounting free?
Sage Accounting is free to download, with in-app purchases available.
Which has better reviews, Invoice Simple or Sage Accounting?
Invoice Simple is rated higher. Invoice Simple averages 4.9 out of 5 from 123K ratings, while Sage Accounting averages 4.5 from 1.6K ratings.
Do Invoice Simple or Sage Accounting have ads?
Sage Accounting shows ads; Invoice Simple does not.
Which is updated more often, Invoice Simple or Sage Accounting?
Invoice Simple ships an update every 2 weeks, and Sage Accounting every 2 months. Most recently, Invoice Simple was updated on November 4, 2026 and Sage Accounting on November 2, 2026.

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