Email signature management
Asked as “email signature management tool”, and as “centralized company email signature software”, on behalf of a mid-market B2B software company. 51 first choices recorded across the direct, paraphrase, budget and scale prompts, six models each. Added to the September 2026 Edition; its answers are read by the distilled judge (ai-indexes-judge-qwen3-14b), not the claude-opus-5 judge of the earlier categories: how the two compare.
Standing · first-choice share
33%
Contested · WiseStamp 24%
33Exclaimer24WiseStamp14Signitic29others
33% of first choices, contested.
The standing
Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all six models, for a mid-market B2B software company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrantSince September 2026
04
CodeTwo Email Signatures 3658%15%54accepted challengernewNew since September 2026: not ranked then, 8% now.
CodeTwo Email Signatures 3658%15%54accepted challengernewNew since September 2026: not ranked then, 8% now.The floor is 12 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. How the floor is measured
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.
Recommended versus criticized
Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.
Criticized challengerCriticized default
Negative label rate →
01
02
0304
05
06
07
08
09Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative50%
Key
01Exclaimer33%
Exclaimer33%02WiseStamp24%
WiseStamp24%03Signitic14%
Signitic14%04CodeTwo Email Signatures 3658%
CodeTwo Email Signatures 3658%05SyncSignature4%
SyncSignature4%06Newoldstamp2%
Newoldstamp2%07MySignature2%
MySignature2%08Opensense0%
Opensense0%09Letsignit0%
Letsignit0%What they warned about
A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Exclaimer19%
12 of 64 labels negative · 8 of 6 models
“One Exclaimer review specifically mentions discomfort with having emails routed through a "random server"... "can cause mail routing issues with Barracuda"” GPT-5.4 mini, negative prompt
CodeTwo Email Signatures 36515%
8 of 54 labels negative · 7 of 6 models · 2 hard negative
“CodeTwo Email Signatures 365 - Outlook Integration Issues: Signatures sometimes not displaying immediately or old signatures persisting unexpectedly” GLM 4.7 FlashX, negative prompt
WiseStamp14%
7 of 51 labels negative · 5 of 6 models · 2 hard negative
“Tools with Known Issues ... WiseStamp - Customer Service Problems: Multiple reviews report unresponsive support, difficulty canceling subscriptions, and unexpected charges” GLM 4.7 FlashX, negative prompt
HubSpot Email Signature Generator
25%
2 of 8 labels negative · 2 of 6 models · 1 hard negative
“Avoid DIY/Free Generators: Basic HTML generators (e.g., HubSpot or generic online makers) lack central management” Grok 4.20, negative prompt
What they cite
Citations exist only for the models that return a source list: fourteen of the six in this edition.
Sites the answers cite
79 of 84 answers in this category came back with a source list, from 14 of 6 models: citations where the model returns them, or the search results it consulted. 1056 links across 122 sites, every framing counted. Ranked by the number of answers carrying the site or page.
vendor site · WiseStamp63 answers · 202 citations · 13 models
vendor site · Mailbutler37 answers · 39 citations · 11 models
vendor site · Exclaimer36 answers · 70 citations · 13 models
vendor site · SyncSignature36 answers · 64 citations · 12 models
vendor site · Newoldstamp36 answers · 37 citations · 13 models
vendor site · Guideflow33 answers · 33 citations · 11 models
30 answers · 53 citations · 12 models
vendor site · GetApp29 answers · 43 citations · 11 models
vendor site · Signitic29 answers · 38 citations · 10 models
29 answers · 29 citations · 12 models
vendor site · Capterra23 answers · 35 citations · 11 models
19 answers · 19 citations · 10 models
Pages the answers cite
The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.
41 answers · 11 models
38 answers · 11 models
37 answers · 11 models
36 answers · 13 models
33 answers · 11 models
29 answers · 12 models
19 answers · 8 models
18 answers · 9 models
18 answers · 8 models
16 answers · 10 models
Search against answers
Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “best email signature management tool”, “email signature management tool”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
| Company and products | Share | Own site cited | Name searches, Google | AI search demand, est. | Organic visits | Google ads, last 30 days | Best Google position |
|---|---|---|---|---|---|---|---|
| Exclaimer exclaimer.com | 33% | 182 | 5,400 | 548 | 46,313 | 68 | 1 |
| WiseStamp wisestamp.com | 24% | 159 | 9,900 | 121 | 260,938 | 120 | 1 |
| Signitic signitic.com | 14% | 60 | 90 | 2 | 48,250 | ||
| CodeTwo Email Signatures 365 codetwo.com | 8% | 150 | 390 | 9 | 20,463 | 120 | 5 |
| BulkSignature bulksignature.com | 6% | 22 | 140 | 0 | 22,388 | 2 | |
| SyncSignature syncsignature.com | 4% | 49 | 140 | 0 | 3,624 | ||
| HubSpot parent site HubSpot Email Signature Generator 4% | 4% | 16 | 368,000 | 9,776 | |||
| Newoldstamp newoldstamp.com | 2% | 64 | 480 | 0 | 30,419 | 11 | 9 |
| MySignature mysignature.io | 2% | 51 | 1,600 | 0 | 59,004 | 2 | |
| Bybrand bybrand.io | 2% | 22 | 390 | 2 | 4,727 | 9 |
Google's top ten for the two searches hold 10 sites; 5 of them are among the sites the models cited here (exclaimer.com, g2.com, newoldstamp.com, thecmo.com, wisestamp.com). The first result for “best email signature management tool” is wisestamp.com.
How they answered
Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.ShowHide
How they answered
Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ShowHideModelDirect“What is the best email signature management tool for a mid-market B2B company?”Paraphrase“Which centralized company email signature software would you recommend to a mid-sized B2B company?”Comparative“What are the top email signature management tools and how do they differ?”Budget-constrained“What is the best email signature management tool for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating an email signature management tool. What should we look at?”Negative“Which email signature management tools should I avoid or be cautious about?”
Claude Opus 5no first choiceno first choiceno first choiceno first choiceno first choicenothing named
Claude Opus 4.8no first choiceno first choiceno first choiceno first choiceno first choicenothing named
GPT-6 Astrano first choiceno first choiceno first choiceno first choiceno first choicenothing named
GPT-5.6 Solno first choiceno first choiceno first choiceno first choiceno first choicenothing named
Gemini 3.1 Prono first choiceno first choiceno first choiceno first choiceno first choicenothing named
Perplexity Sonar Prono first choiceno first choiceno first choiceno first choiceno first choicenothing named
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against
The record
One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record
Zero rows: every prompt, every model, every answer.
| Prompt | Model | Version string | Time (UTC) | Searched | Sources | Latency |
|---|
Normalization in this category
Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.
ShowHide
Category-scoped readings
CodeTwo read as CodeTwo Email Signatures 365
HubSpot read as HubSpot Email Signature Generator
HubSpot Signature Generator read as HubSpot Email Signature Generator
HubSpot's free email signature generator read as HubSpot Email Signature Generator
Unresolved, counted raw
BulkSign
Canary Mail
EmailSign
Exclaimer Signature Manager
Gmail
HubSpot's Email Signature Generator
HubSpot's free generator
Magic Signatures
MailSig
Microsoft
MySigMail
Native Outlook/Gmail signature tools
Sigbooster
SignOff
Signaturely
Signatures365
Textexpander
Wodup
Discontinued, still offered
No shut-down product was recommended here.