Finance AI Index

Index › Vendors › Invoice Simple · September 2026 Edition

2 categories · Named, not ranked

Invoice Simple

14Judge labels

0First choices

14Negative labels

8 of 12Models named it

2Categories

September 2026 Edition. Every number here is derived from the raw labels under vendor table vv2026-09.2, every buyer segment counted.

Standing

6 labels, too few to rank

A product needs 10 labels in a category before a share or quadrant is stated. Invoice Simple was named 6 times in Invoicing software and 1 other category, where Wave led with 19%. The labels and the evidence are below, counted exactly.

By buyer segmentRead the same way at every buyer size.

Small business55 of 55

under the label threshold

Mid-market85 of 86

under the label threshold

Enterprisenot named

No model named it for this buyer.

In invoicing software · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Invoice Simple for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant
Invoicing software	Receivables and billing	0%	85 of 86	100%	4	under 10 labels · led by Wave at 19%
Global e-invoicing compliance	Tax and compliance	0%	105 of 108	100%	2	under 10 labels · led by Avalara at 28%

Movement

This is the first edition on this tier, so no move can be computed for Invoice Simple yet. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Invoice Simple across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.

Model	Negative	Labels
Claude Haiku 4.5	1	1
GPT-5.4 mini	0	0
Gemini 3.5 Flash	1	1
Perplexity Sonar	0	0
Grok 4.1 Fast	0	0
Mistral Small	0	0
DeepSeek V4 Flash	2	2
Llama 4 Maverick	0	0
Qwen 3.7 Flash	0	0
Kimi K2	1	1
GLM 4.7 FlashX	0	0
MiniMax M2.5	1	1

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct0 labelsNone

Paraphrase0 labelsNone

Comparative0 labelsNone

Budget-constrained0 labelsNone

Scale-constrained0 labelsNone

Negative14 labelsNone

First choiceAlternativeMentionNegative14 labels in all, every segment counted; 0 of the 0 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

No positive label carried a quote.

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Invoice Simple has faced an influx of heavy user criticism and holds an "F" rating with the Better Business Bureau (BBB).” Gemini 3.5 Flash · Invoicing software · negative prompt · hard negative

“Recurring themes of sudden subscription fee jumps, automatic charges from accidental clicks” DeepSeek V4 Flash · Global e-invoicing compl · negative prompt · hard negative

“Associated with chargeback disputes and trust issues according to user reports” MiniMax M2.5 · Invoicing software · negative prompt · hard negative

“difficult to cancel as you have to call, there have been outages, and customer support takes a long time to respond” Claude Haiku 4.5 · Invoicing software · negative prompt · soft negative

Named alongside

The products named in the same answers as Invoice Simple, over the 14 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Invoice Simple was named but was not.

ProductSame answerTook the first choice insteadHead to head

Wave9 of 140Not in the top three

FreshBooks8 of 141Not in the top three

Zoho Invoice7 of 142Not in the top three

QuickBooks6 of 141Not in the top three

PayPal Invoicing6 of 140Not in the top three

Invoiced5 of 140Not in the top three

Stripe Invoicing5 of 140Not in the top three

Invoicely4 of 140Not in the top three

Invoice2go3 of 140Not in the top three

Xero3 of 140Not in the top three

A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Invoice Simple. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 11 of the 14 answers that named Invoice Simple and are not a share of its labels.

Domains cited

trustpilot.com7

reddit.com6

capterra.com5

g2.com5

ie.trustpilot.com5

mercury.com4

agiled.app3

assist.biz3

linkedin.com3

softwareadvice.com3

Forty-four of the forty-four domain citations in answers naming Invoice Simple came from somebody else's page.

Pages cited

reddit.com/r/smallbusiness/comments/1n0bwmf/invoice_simple_admitted_that_you_cannot_trust5

mercury.com/blog/best-invoicing-software-for-startups-small-businesses4

agiled.app/blog/best-invoicing-software-for-small-businesses3

assist.biz/general/e-invoicing-security-protecting-your-business3

capterra.com/p/222215/Invoiced/reviews3

g2.com/products/comarch-edi-and-e-invoicing/reviews3

reddit.com/r/smallbusiness/comments/1r7t104/anyone_else_frustrated_by_what_invoicing_apps3

trustpilot.com/review/invoice.2go.com3

Pages are listed as the models cited them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Invoice Simple's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Invoice Simple, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at invoices.page is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.