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# Exclaimer vs Signature 365 Comparison - What are their main differences?

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Pricing

**Exclaimer**
Free Trial

**$0.90** Per User Per Month · Starter

**$1.45** Per User Per Month · Standard

**$1.75** Per User Per Month · Pro

**Signature 365**
Free Trial

**$0.94** Per User Per Month · Monthly

**$0.75** Per User Per Year · Yearly

**Pricing Insights**
from reviews

Perceived Cost

**Exclaimer**
$$$$$

**Signature 365**
$$$$$

Average Discount

**Exclaimer**
9%1% more

**Signature 365**
8%

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Time to Implement

**Exclaimer** 6 months
Based on 100 responses

**Signature 365** 6 months
Based on 100 responses

Return on Investment

**Exclaimer** 6 months
Based on 100 responses

**Signature 365** 6 months
Based on 100 responses

 ![Exclaimer](https://images.g2crowd.com/uploads/product/hd_favicon/e83fbf28612503135f047d478061e488/exclaimer.svg "Exclaimer")

 ![Signature 365](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_bcd7a1fb80f8d613b2b253109c15be8a/signature-365.png "Signature 365")

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**Pros & Cons**
from reviews

**Exclaimer**

Ease of Use (109)

Signature Quality (70)

Signature Issues (41)

Not User-Friendly (17)

**Signature 365**

Ease of Use (92)

Easy Setup (78)

Signature Issues (50)

Outlook Integration Issues (20)

Integrations

**Exclaimer**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_de7b0518c01aad23330b32c4acb323dd/adp-workforce-now.jpg "Product Avatar Image")

Workforce Now

](https://www.g2.com/products/adp-workforce-now/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_f176b4154a751d10150daa67a57b7dc5/azure-active-directory-domain-services.jpg "Product Avatar Image")

Azure Active Directory...

](https://www.g2.com/products/azure-active-directory-domain-services/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_f176b4154a751d10150daa67a57b7dc5/azure-portal.jpg "Product Avatar Image")

Azure Portal

](https://www.g2.com/products/azure-portal/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_a50f19b266676866f77789e43f5d3a4d/bamboohr.png "Product Avatar Image")

BambooHR

](https://www.g2.com/products/bamboohr/reviews)[
View all
](https://www.g2.com/products/exclaimer/integrations)

**Signature 365**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_3a9f46b15d804a2abbb8138a7bf78b88/calendly%282%29.png "Product Avatar Image")

Calendly Sales

](https://www.g2.com/products/calendly/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_ae5d46296d0f8afa0fd352fc44bf419d/microsoft365.png "Product Avatar Image")

Microsoft 365

](https://www.g2.com/products/microsoft365/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_55478ade214699bfe391217db390f3b2/microsoft-bookings.jpg "Product Avatar Image")

Microsoft Bookings

](https://www.g2.com/products/microsoft-bookings/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_ebfae2a9075850f9fa094c23484ef258/microsoft-entra-id.jpg "Product Avatar Image")

Microsoft Entra ID

](https://www.g2.com/products/microsoft-entra-id/reviews)[
View all
](https://www.g2.com/products/signature-365/integrations)

Screenshots

**Exclaimer**
 ![Exclaimer screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1356361/Screenshot-2026-03-19-at-10.25.00-AM.png)

**Signature 365**
 ![Signature 365 screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1345768/signature365-dashboard-1280x720.png)

**Ratings**
from reviews

Meets Requirements

**Exclaimer**

**9.2** /10

Based on 1,229 responses

**Signature 365**

**9.4** /10

Based on 302 responses

Ease of Use

**Exclaimer**

**8.8** /10

Based on 1,241 responses

**Signature 365**

**9.3** /10

Based on 310 responses

Ease of Setup

**Exclaimer**

**8.6** /10

Based on 1,151 responses

**Signature 365**

**9.1** /10

Based on 296 responses

Ease of Admin

**Exclaimer**

**8.9** /10

Based on 1,067 responses

**Signature 365**

**9.3** /10

Based on 265 responses

Quality of Support

**Exclaimer**

**8.9** /10

Based on 1,187 responses

**Signature 365**

**9.4** /10

Based on 270 responses

Has the product been a good partner in doing business?

**Exclaimer**

**9.1** /10

Based on 1,045 responses

**Signature 365**

**9.4** /10

Based on 254 responses

Product Direction (% positive)

**Exclaimer**

**8.7** /10

Based on 1,180 responses

**Signature 365**

**9.6** /10

Based on 293 responses

**Features**
ratings from reviews

Email Signature

**9.0** /10

Based on 1,005 responses

**8.8** /10

Based on 299 responses

User Insights

**Reviewers' Company Size**

Small-Business(50 or fewer emp.)
37.0%

Mid-Market(51-1000 emp.)
56.1%

Enterprise(\> 1000 emp.)
6.9%

Small-Business(50 or fewer emp.)
37.0%

Mid-Market(51-1000 emp.)
56.1%

Enterprise(\> 1000 emp.)
6.9%

Small-Business(50 or fewer emp.)
21.7%

Mid-Market(51-1000 emp.)
65.6%

Enterprise(\> 1000 emp.)
12.7%

Small-Business(50 or fewer emp.)
21.7%

Mid-Market(51-1000 emp.)
65.6%

Enterprise(\> 1000 emp.)
12.7%

**Reviewers' Industry**

[![Exclaimer](https://images.g2crowd.com/uploads/product/hd_favicon/e83fbf28612503135f047d478061e488/exclaimer.svg "Exclaimer")](https://www.g2.com/products/exclaimer/reviews)
Exclaimer

Information Technology and Services
13.3%

Construction
5.3%

Financial Services
4.1%

Computer & Network Security
3.9%

Computer Software
3.9%

Other
69.4%

[![Signature 365](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_bcd7a1fb80f8d613b2b253109c15be8a/signature-365.png "Signature 365")](https://www.g2.com/products/signature-365/reviews)
Signature 365

Information Technology and Services
6.5%

Legal Services
6.1%

Manufacturing
5.8%

Financial Services
5.2%

Construction
4.8%

Other
71.6%

Alternatives

**Exclaimer Alternatives**

 ![CodeTwo Email Signatures 365](https://images.g2crowd.com/uploads/product/hd_favicon/5594817eedc34b883944256399005c57/codetwo-email-signatures-365.svg "CodeTwo Email Signatures 365")

[
CodeTwo Email Signatures 365
](/products/codetwo-email-signatures-365/reviews)

 ![WiseStamp](https://images.g2crowd.com/uploads/product/hd_favicon/281d6b1db26ac3feabee1c92508540e6/wisestamp.svg "WiseStamp")

[
WiseStamp
](/products/wisestamp/reviews)

 ![NEWOLDSTAMP](https://images.g2crowd.com/uploads/product/hd_favicon/6bae78974bd24baaf981750c176ca78c/newoldstamp.svg "NEWOLDSTAMP")

[
NEWOLDSTAMP
](/products/newoldstamp/reviews)

 ![Opensense Email Signatures](https://images.g2crowd.com/uploads/product/hd_favicon/0ee45cb20213a5aa7548291ce9207a9a/opensense-email-signatures.svg "Opensense Email Signatures")

[
Opensense Email Signatures
](/products/opensense-email-signatures/reviews)

**Signature 365 Alternatives**

 ![CodeTwo Email Signatures 365](https://images.g2crowd.com/uploads/product/hd_favicon/5594817eedc34b883944256399005c57/codetwo-email-signatures-365.svg "CodeTwo Email Signatures 365")

[
CodeTwo Email Signatures 365
](/products/codetwo-email-signatures-365/reviews)

 ![WiseStamp](https://images.g2crowd.com/uploads/product/hd_favicon/281d6b1db26ac3feabee1c92508540e6/wisestamp.svg "WiseStamp")

[
WiseStamp
](/products/wisestamp/reviews)

 ![NEWOLDSTAMP](https://images.g2crowd.com/uploads/product/hd_favicon/6bae78974bd24baaf981750c176ca78c/newoldstamp.svg "NEWOLDSTAMP")

[
NEWOLDSTAMP
](/products/newoldstamp/reviews)

 ![Opensense Email Signatures](https://images.g2crowd.com/uploads/product/hd_favicon/0ee45cb20213a5aa7548291ce9207a9a/opensense-email-signatures.svg "Opensense Email Signatures")

[
Opensense Email Signatures
](/products/opensense-email-signatures/reviews)

## Exclaimer vs Signature 365 FAQs

Generated using AI

Last updated: November 13, 2026

### What is the difference between Exclaimer vs Signature 365?

Signature 365 leads Exclaimer on overall rating and every supplied satisfaction score, while both draw their largest reviewer segment from mid-market companies.

| Dimension | [Exclaimer](https://www.g2.com/products/exclaimer/reviews) | [Signature 365](https://www.g2.com/products/signature-365/reviews) |
| --- | --- | --- |
| G2 Rating (reviews) | 4.5/5 (1.5k+ reviews) | 4.7/5 (300+ reviews) |
| Largest Segment | Mid-Market | Mid-Market |
| Ease of Setup score | 8.6/10 | 9.1/10 |
| Quality of Support score | 8.9/10 | 9.4/10 |
| Top Reviewer-Cited Strength | Ease of Use, 100+ mentions | Ease of Use, 90+ mentions |

### How do the pricing models of Exclaimer and Signature 365 compare?

Signature 365 is the stronger value on reviewer satisfaction, scoring 9.4/10 for meeting requirements versus Exclaimer’s 9.2/10.

- **Exclaimer:** In recent reviews, users describe competitive pricing and strong value for centralized branding and signature management; one reviewer notes a preference for more flexible licensing.
- **Signature 365:** In recent reviews, users call the product cost-effective and reasonably priced, while another reviewer says the price could be lower.
- **Switching reasons:** Recent reviewers describe moving from manually maintained signatures or other signature tools to centralized management, automation, and consistent branding.

### What are the best alternatives to Exclaimer and Signature 365?

The top alternatives to Exclaimer and Signature 365 are CodeTwo Email Signatures 365, WiseStamp, and NEWOLDSTAMP.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Exclaimer](https://www.g2.com/products/exclaimer/reviews) | 4.5/5 (1.5k+ reviews) | Mid-Market | Recent reviewers describe competitive pricing and value. | Centralized signature management and consistent branding |
| [Signature 365](https://www.g2.com/products/signature-365/reviews) | 4.7/5 (300+ reviews) | Mid-Market | Recent reviewers describe reasonable, cost-effective pricing. | Centralized management and Microsoft 365 integration |
| [CodeTwo Email Signatures 365](https://www.g2.com/products/codetwo-email-signatures-365/reviews) | 4.8/5 (1.8k+ reviews) | Mid-Market | | |
| [WiseStamp](https://www.g2.com/products/wisestamp/reviews) | 4.6/5 (500+ reviews) | Small-Business | | |
| [NEWOLDSTAMP](https://www.g2.com/products/newoldstamp/reviews) | 4.7/5 (400+ reviews) | Small-Business | | |

### Which Email Signature features should I prioritize when comparing Exclaimer and Signature 365?

Prioritize ease of use, setup, administration, support, and campaign-ready branding when evaluating Exclaimer and Signature 365.

- **Ease of use:** Signature 365 scores 9.3/10 versus Exclaimer’s 8.8/10; ease of use is a recurring strength, with 90+ and 100+ all-time mentions, respectively.
- **Setup and deployment:** Signature 365 scores 9.1/10 for setup versus Exclaimer’s 8.6/10. Easy setup has 70+ mentions for Signature 365 and 60+ for Exclaimer.
- **Administration:** Signature 365 scores 9.3/10 for ease of admin versus Exclaimer’s 8.9/10. Recent reviewers of both products value centralized control and automated updates.
- **Support:** Signature 365 scores 9.4/10 versus Exclaimer’s 8.9/10; customer support has 40+ all-time mentions for Signature 365.
- **Branding and campaigns:** Recent reviewers of both products cite consistent branding, targeted banners, and centrally managed templates; Exclaimer’s branding theme has 30+ mentions and Signature 365’s has 25.

### What are the pros and cons of Exclaimer vs Signature 365?

Exclaimer’s headline strength is centralized, customizable branding, while Signature 365’s is straightforward Microsoft 365-connected management and deployment.

- **Exclaimer strengths:** Reviewers praise ease of use, signature quality, setup, and branding, with 100+, 70+, 60+, and 30+ all-time mentions, respectively. Recent reviews also highlight templates, department-based rules, and campaign banners.
- **Exclaimer trade-offs:** Recent reviewers describe a learning curve in advanced configuration, occasional editor navigation and formatting friction, and a desire for deeper analytics.
- **Signature 365 strengths:** Reviewers cite ease of use, setup, integrations, and customer support, with 90+, 70+, 40+, and 40+ all-time mentions. Recent reviews also praise centralized control, automatic directory data, and scheduled campaigns.
- **Signature 365 trade-offs:** Reviewers note occasional signature and Outlook integration issues, with 50+ and 20+ all-time mentions, alongside requests for more customization and clearer administration.

### Is Exclaimer or Signature 365 better for small businesses?

Exclaimer and Signature 365 are equally aligned with mid-market reviewers, and neither has a demonstrated small-business segment advantage.

- **Exclaimer:** Mid-Market is its largest reviewer company-size segment. Recent small-business-oriented feedback highlights centralized signature control, time savings, and consistent branding, alongside a reviewer’s concern that licensing flexibility could better suit smaller organizations.
- **Signature 365:** Mid-Market is its largest reviewer company-size segment. Recent small-business-oriented feedback describes reasonable pricing, simple setup, and centralized management, while noting that less technical users could benefit from easier design tools.

### Which Email Signature platform has better integrations?

Exclaimer has the broader named integration footprint in reviewer mentions, while Signature 365 reviewers emphasize Microsoft 365 integration.

- **Exclaimer:** Reviewers mention Microsoft 365, Google Workspace, and Customer Thermometer; Microsoft 365 has 60+ all-time mentions and Google Workspace has 30+.
- **Signature 365:** Reviewers cite Microsoft 365 integration for directory data, Outlook deployment, and centralized signature updates; Microsoft 365 has 50+ all-time mentions.

### How do Exclaimer and Signature 365 compare on customer support?

Signature 365 leads Exclaimer on Quality of Support, scoring 9.4/10 versus 8.9/10, a 0.5-point advantage.

- **Exclaimer:** Recent reviewers praise responsive, knowledgeable support and helpful onboarding; others note that reaching human support through automated agents can be frustrating.
- **Signature 365:** Recent reviewers describe quick, reliable technical assistance, guided onboarding, and remote help resolving issues; European support hours are a noted trade-off.

### Which is easier to implement, Exclaimer or Signature 365?

Signature 365 leads Exclaimer on Ease of Setup, scoring 9.1/10 versus 8.6/10, a 0.5-point advantage; it also leads on Ease of Admin, 9.3/10 to 8.9/10.

- **Exclaimer:** Recent reviewers describe automated setup, Microsoft 365 onboarding, and straightforward deployment, with some noting that permissions, integrations, or advanced rules require IT involvement.
- **Signature 365:** Recent reviewers describe uncomplicated Microsoft 365 configuration, guided migration, and quick deployment; one reviewer completed integration in a 45-minute remote session.

### Which product has better Signature Management?

Signature Management is the focus feature for both Exclaimer and Signature 365.

- **Exclaimer:** Reviewers describe centralized signature control, dynamic templates, and rules for assigning signatures by user group; ease of use has 100+ all-time mentions and signature quality has 70+.
- **Signature 365:** Reviewers describe centralized management, automatic Microsoft directory data, and signatures assigned by department or group; ease of management has 20+ all-time mentions, and ease of use has 90+.