FreeAgent vs Invoice Simple

as AI assistants see them, week of 2026-09-21

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FreeAgent and Invoice Simple both barely register with AI assistants, tied at an overall score of 3 out of 100. FreeAgent shows up in 4 of 70 answers, edging out Invoice Simple's 3 of 70. FreeAgent gets a mention for things like VAT or sales tax handling, solo consultant use, and value for money, each just 1 of 3 or 1 of 4 answers. Invoice Simple pops up for contractor and trades questions, ease of use, and free templates with no signup, again only 1 of 3 or 1 of 4 times. Head-to-head, FreeAgent leads on 4 questions, Invoice Simple on 3, with 13 ties. Neither is named for connecting to accounting software or handling multiple currencies.

Head to head

metric	FreeAgent	Invoice Simple
score	3	3
questions won	4	3

By assistant

FreeAgent

assistant	score	named in, this week	usual spot, this week
ChatGPT	0	0% of answers
Claude	10	20% of answers	#7.8
Gemini	0	0% of answers
Perplexity	0	0% of answers

Invoice Simple

assistant	score	named in, this week	usual spot, this week
ChatGPT	0	0% of answers
Claude	7	10% of answers	#4.5
Gemini	0	0% of answers
Perplexity	3	5% of answers	#5.0

Where they differ

Only FreeAgent gets named for

What's the best invoicing tool that handles VAT or sales tax?
What's the best invoicing app for a solo consultant?
Which invoicing software is best value for money?
What are the best invoicing software tools?

Only Invoice Simple gets named for

What's the best invoicing app for contractors and trades?
What's the best free invoice template or generator with no signup?
Which invoicing tool is easiest to use?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full Invoicing software leaderboard