Softwr

Accounting · head to head

Invoice2go vs IRIS KashFlow

Invoice2go logo

Invoice2go

Accounting

Mobile-first invoicing app for small businesses and freelancers

From
On request
Rated
-
Full reviewWebsite
IRIS KashFlow logo

IRIS KashFlow

Accounting

Online accounting software for UK sole traders and small businesses

From
£13.5/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Invoice2go starter plan caps invoices at just 30 per year, forcing an upgrade for most active businesses.; IRIS KashFlow advertised monthly prices of £1.35 (Starter) and £2.75 (Business) are a 90% promotional discount off the standard £13.50 and £27.50 rates, and the promotion is described as lasting 6 months before reverting
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Invoice2go and IRIS KashFlow actually diverge.

Attributes where Invoice2go and IRIS KashFlow differ
AttributeInvoice2goIRIS KashFlow
Starting priceOn request£13.5/month
Platformsweb, ios, androidWeb

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated), category (Accounting).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Invoice2go

  • Invoice creation and customization
  • Estimates and projects
  • In-app payments
  • Automated reminders
  • Accounting integrations
  • Team member access

Only in IRIS KashFlow

Nothing recorded that Invoice2go does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Invoice2go

  • Freelancers invoicing clients from a mobile devicenot IRIS KashFlow
  • Small service businesses tracking estimates and projectsnot IRIS KashFlow
  • Businesses wanting integrated card and ACH paymentsnot IRIS KashFlow
  • Businesses syncing invoices with QuickBooks or Xeronot IRIS KashFlow

IRIS KashFlow

  • business accountingnot Invoice2go
  • invoicing and billingnot Invoice2go
  • VAT managementnot Invoice2go

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Invoice2go

  • Starter plan caps invoices at just 30 per year, forcing an upgrade for most active businesses.
  • Card processing fees are higher than some dedicated payment processors.
  • Accounting integrations are limited to QuickBooks and Xero, excluding other platforms.
  • Premium plan requires roughly $100k+/year revenue to be cost-effective, per its own positioning.

IRIS KashFlow

  • Advertised monthly prices of £1.35 (Starter) and £2.75 (Business) are a 90% promotional discount off the standard £13.50 and £27.50 rates, and the promotion is described as lasting 6 months before reverting
  • Listed prices are in GBP plus VAT, and the platform's plans are built around UK VAT filing rather than other tax regimes
  • Annual pricing is quoted at RRP £162/year (Starter) and £291.50/year (Business) before the same promotional reduction

Pricing, plan by plan

Invoice2go

On request
  • Starter$undefined/month
    • 30 invoices/year
    • 3.5% card payment fee
    • Free ACH bank transfers
  • Professional$undefined/month
    • 100 invoices/year
    • 3% card payment fee
    • QuickBooks/Xero integration
  • Premium$undefined/month
    • Unlimited invoices
    • 2.9% card payment fee
    • Recurring invoices

IRIS KashFlow

£13.5/month
  • Starter Monthly$13.5/month
    • 10 invoices
    • up to 25 bank transactions
    • single user access
  • Business Monthly$27.5/month
    • unlimited invoices
    • unlimited bank transactions
    • multi-user access
  • Starter Annual$162/year
    • 10 invoices
    • up to 25 bank transactions
    • single user access
  • Business Annual$291.5/year
    • unlimited invoices
    • unlimited bank transactions
    • multi-user access

Which should you pick?

Choose Invoice2go if

  • You need invoice creation and customization.
  • You work on web, ios, android.
  • You also want estimates and projects.
Invoice2go review

Choose IRIS KashFlow if

Nothing in the data separates IRIS KashFlow from Invoice2go on the points above - pick on price and on how each one feels to use.

IRIS KashFlow review

Questions people ask

Is Invoice2go or IRIS KashFlow better?
Neither clearly leads. Invoice2go starts at On request and IRIS KashFlow at £13.5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Invoice2go or IRIS KashFlow?
Invoice2go starts at On request and IRIS KashFlow at £13.5/month.
Does Invoice2go or IRIS KashFlow run on more platforms?
Invoice2go runs on web, ios, android. IRIS KashFlow runs on Web.
What is Invoice2go best used for?
Invoice2go is most often used for freelancers invoicing clients from a mobile device, small service businesses tracking estimates and projects, businesses wanting integrated card and ach payments, businesses syncing invoices with quickbooks or xero. Of those, freelancers invoicing clients from a mobile device and small service businesses tracking estimates and projects are not what IRIS KashFlow is typically brought in for.
What can Invoice2go do that IRIS KashFlow cannot?
Invoice2go covers Invoice creation and customization, Estimates and projects, In-app payments, Automated reminders.

Answered from the vendors’ own pages

Invoice2go: What does Invoice2go cost?

Invoice2go offers three tiers - Starter (30 invoices/year), Professional (100 invoices/year), and Premium (unlimited invoices) - distinguished by invoice volume and card processing fees from 3.5% down to 2.9%.

Source
IRIS KashFlow: What are IRIS KashFlow's core features across all plans?

All IRIS KashFlow plans include unlimited quotes, online VAT submission, mobile app access, 50+ reports, bank feeds, receipt capture, multi-currency support, and payroll for up to 5 employees.

Source
Invoice2go: Is there a free trial?

Yes, Invoice2go offers a 30-day free trial that requires a credit card but includes a 100% money-back guarantee if canceled within 30 days.

Source
IRIS KashFlow: Are there promotional discounts for new IRIS KashFlow customers?

Yes, new customers receive a 90% discount for 6 months on both Starter and Business monthly plans.

Source
Invoice2go: Does Invoice2go integrate with accounting software?

Yes, the Professional and Premium plans include integration with QuickBooks and Xero.

Source
IRIS KashFlow: Can multiple users access IRIS KashFlow on the Starter plan?

No, the Starter plan is limited to single-user access only. Multi-user access requires the Business plan.

Source
Share

Related pages

More on Invoice2go

More on IRIS KashFlow

Keep looking

Other head to heads