Invoice Simple vs IRIS KashFlow Accounting

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Invoice Simple

See full pricing history

USD · US · source: www.invoicesimple.com

Plan	Pricing	Charged by	Offer type
Essentials	USD 6.99 monthly · USD 5.83 / month with annual commitment ly start sending estimates, invoices, receipts, and receive payments. $6.99 /mo Up to 3 invoices per month $69.99 /yr * Up to 3 invoices per month Subscribe Now Try It Free Essentials includes: Autofill client & item info Online payments Real time read receipt	Flat · per month	Standalone · Fixed
Plus Highlighted	USD 14.99 monthly · USD 12.5 / month with annual commitment usinesses to send   nice-looking, easy to create documents on-the-go. $14.99 /mo Up to 10 invoices per month $149.99 /yr * Up to 10 invoices per month Subscribe Now Try It Free Everything in Essentials, and: Add photos Business owner signature Summary reports	Flat · per month	Standalone · Fixed
Premium	USD 21.99 monthly · USD 18.33 / month with annual commitment nesses to improve invoice organization and make online payments easy. $21.99 /mo Unlimited invoices per month $219.99 /yr * Unlimited invoices per month Subscribe Now Try It Free Everything in Plus, along with: Client signatures Premium templates Accept deposi	Flat · per month	Standalone · Fixed

IRIS KashFlow Accounting

See full pricing history

GBP · US · source: www.kashflow.com

Plan	Pricing	Charged by	Offer type
Starter — Monthly	GBP 13.5 monthly · GBP 1.35 / month with annual commitment £1.35 /per month (save £72.90 over 6 months) Get 90% off for 6 months.	Flat · per month	Standalone · Fixed
Business Recommended — Monthly Highlighted	GBP 27.5 monthly · GBP 2.75 / month with annual commitment £2.75 /per month (save £148.50 over 6 months) Get 90% off for 6 months.	Flat · per month	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Invoice Simple

Essentials

Plan card Autofill client & item info: Included
Plan card Online payments: Included
Plan card Real time read receipts: Included
Plan card Top-rated mobile app: Included

Plus

Plan card Add photos: Included
Plan card Business owner signature: Included
Plan card Summary reports: Included
Plan card Due date reminders: Included

Premium

Plan card Client signatures: Included
Plan card Premium templates: Included
Plan card Accept deposits: Included
Plan card Restore previous invoices: Included

IRIS KashFlow Accounting

Starter — Monthly

Highlights Quotes: unlimited

Included
Highlights Invoices: 10 invoices

Included
Highlights Bank transactions reconciliation: up to 25

Included
Highlights Users: Single User

Included
Highlights Manage and submit VAT online: Included
Highlights Bank Feeds: Included
Highlights Mobile App: Free

Included
Highlights Reports: Access to over 50 reports

Included
Highlights Customisable dashboard: Included
Highlights Manage purchases & expenses: Included
Highlights Track Mileage: Included
Highlights Schedule customer statements: Included
Highlights IRIS Pay: Included
Highlights Customer Credit Limits: Included
Highlights Receipt Capture: Included
Highlights Multi-currency: Included
Highlights Repeat invoices & purchases: Included
Highlights Payroll: up to 5 employees

Included

Business Recommended — Monthly

Highlights Quotes: unlimited

Included
Highlights Invoices: unlimited

Included
Highlights Bank transactions reconciliation: unlimited

Included
Highlights Users: Multi-User

Included
Highlights Manage and submit VAT online: Included
Highlights Bank Feeds: Included
Highlights Mobile App: Free

Included
Highlights Reports: Access to over 50 reports

Included
Highlights Customisable dashboard: Included
Highlights Manage purchases & expenses: Included
Highlights Track Mileage: Included
Highlights Multi-currency: Included
Highlights Repeat invoices & purchases: Included
Highlights Schedule customer statements: Included
Highlights IRIS Pay: Included
Highlights Customer Credit Limits: Included
Highlights Receipt Capture: Included
Highlights Payroll: up to 5 employees

Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Invoice Simple

August 27, 2026 Source
- Essentials: USD 6.99 monthly · USD 5.83 / month with annual commitment
- Plus: USD 14.99 monthly · USD 12.5 / month with annual commitment
- Premium: USD 21.99 monthly · USD 18.33 / month with annual commitment

IRIS KashFlow Accounting

August 27, 2026 Source
- Starter — Monthly: GBP 13.5 monthly · GBP 1.35 / month with annual commitment
- Business Recommended — Monthly: GBP 27.5 monthly · GBP 2.75 / month with annual commitment