Invoice Simple vs Sage Accounting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | Invoice Simple | Sage Accounting |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (123K ratings) — better | 4.5 (1.6K ratings) |
| Positive reviews | 63.8% of reviews — better | 11.6% of reviews |
| Number of ratings | 123K — better | 1.6K |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #9 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 221 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Zenvoice Inc. | Sage Accounting |
Customer experience
Invoice Simple
Sage Accounting
User reviews
Invoice Simple
From 123K App Store ratingsWhat 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 ratingsWhat 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 moreShow fewer
- 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 moreShow fewer
- 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 moreShow fewer
- 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
Invoice Simple
- Essentials Monthly$6.991 Month
- Mobile subscription$10.991 Month
- Monthly Side Business$10.991 Month
Show 6 moreShow fewer
- 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
Sage Accounting
- Sage Accounting Start IE$12.491 Month
- Sage Accounting Start UK$16.491 Month
- Sage Accounting IE$29.991 Month
Show 2 moreShow fewer
- Sage Accounting Standard UK$34.991 Month
- Sage Accounting Plus UK$43.991 Month
Questions
Is Invoice Simple free?
Is Sage Accounting free?
Which has better reviews, Invoice Simple or Sage Accounting?
Do Invoice Simple or Sage Accounting have ads?
Which is updated more often, Invoice Simple or Sage Accounting?
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