# Mailbird, Thunderbird vs Microsoft Outlook Comparison

| | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Star Rating** | 3.6 out of 5 | 4.3 out of 5 | 4.5 out of 5 | 
| **Total Reviews** | 101 | 339 | 3,472 | 
| **Largest Market Segment** | Small-Business (80.2% of reviews) | Small-Business (65.1% of reviews) | Enterprise (38.2% of reviews) | 
| **Entry Level Price** | $5.75 Per Month | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Mailbird

Pros:
- Ease of Use (4 reviews)
- Setup Ease (3 reviews)

Cons:
- Bug Issues (3 reviews)
- Lack of Integration (3 reviews)

### Thunderbird

Pros:
- Functionality Features (4 reviews)
- Ease of Use (3 reviews)

Cons:
- Difficult Setup (2 reviews)
- Missing Features (2 reviews)

### Microsoft Outlook

Pros:
- Ease of Use (227 reviews)
- Calendar Integration (125 reviews)

Cons:
- Slow Loading (84 reviews)
- Slow Performance (82 reviews)

---
## Ratings Comparison
| Rating | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
  | **Meets Requirements** | 7.2 (79 reviews) | 8.7 (304 reviews) | 9.2 (2722 reviews) | 
  | **Ease of Use** | 7.7 (79 reviews) | 8.7 (305 reviews) | 9.0 (2806 reviews) | 
  | **Ease of Setup** | 8.1 (22 reviews) | 8.8 (75 reviews) | 9.1 (980 reviews) | 
  | **Ease of Admin** | 9.3 (14 reviews) | 8.4 (58 reviews) | 8.6 (319 reviews) | 
  | **Quality of Support** | 6.9 (64 reviews) | 7.9 (222 reviews) | 8.6 (2218 reviews) | 
  | **Has the product been a good partner in doing business?** | 7.9 (11 reviews) | 8.1 (41 reviews) | 8.8 (300 reviews) | 
  | **Product Direction (% positive)** | 6.9 (78 reviews) | 7.6 (302 reviews) | 8.5 (2647 reviews) | 

---
## Pricing

### Mailbird

#### Entry-Level Pricing

Plan: Mailbird Premium Yearly

Price: $5.75 Per Month

Description: A yearly subscription that gives you access to both Mailbird for Windows and Mailbird for Mac on up to three devices. This plan includes all future Mailbird updates—both minor and major—because Lifetime Updates are built in by default.

Key Features:
- Access to Mailbird for Windows and Mailbird for Mac
- Lifetime Updates included by default
- Manage unlimited email accounts

[Browse all 3 editions](https://www.g2.com/products/mailbird/pricing)

#### Free Trial

Yes

### Thunderbird

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Microsoft Outlook

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Email Client

| Product | Score | Reviews |
|---|---|---|
| **Mailbird** | 7.7/10 | 37 |
| **Thunderbird** | 8.5/10 | 123 |
| **Microsoft Outlook** | 8.8/10 | 1295 |

#### Inbox Tools

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Unified Inbox** | 8.6 (33 reviews) | 8.9 (104 reviews) | 9.1 (1088 reviews) | 
| **Filters** | 7.4 (33 reviews) | 8.9 (109 reviews) | 8.9 (1161 reviews) | 
| **Reminders** | 7.6 (30 reviews) | 8.5 (96 reviews) | 9.3 (1166 reviews) | 
| **Notifications** | 7.8 (31 reviews) | 8.7 (104 reviews) | 9.2 (1174 reviews) | 

#### Coordination Tools

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Calendar** | 7.7 (30 reviews) | 8.4 (93 reviews) | 9.3 (1188 reviews) | 
| **Contacts** | 7.6 (33 reviews) | 8.6 (101 reviews) | 8.9 (1142 reviews) | 
| **Task Management** | 7.1 (26 reviews) | 8.4 (89 reviews) | 8.8 (1083 reviews) | 

#### Software Options

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Desktop Application** | 7.4 (35 reviews) | 9.2 (111 reviews) | 9.2 (1155 reviews) | 
| **Mobile Application** | Feature Not Available | 7.6 (64 reviews) | 8.7 (1104 reviews) | 

#### Email Client - Agentic AI

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 7.5 (112 reviews) | 
| **Cross-system Integration** | Not enough data | 8.0 (5 reviews) | 7.8 (118 reviews) | 

### Calendar

| Product | Score | Reviews |
|---|---|---|
| **Mailbird** | N/A | N/A |
| **Thunderbird** | N/A | N/A |
| **Microsoft Outlook** | 8.5/10 | 1471 |

#### Calendar View

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Multi-Calendar View** | Not enough data | Not enough data | 9.0 (1222 reviews) | 
| **Customizable Viewing** | Not enough data | Not enough data | 8.9 (1234 reviews) | 

#### Shared Calendar

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Calendar Collaboration** | Not enough data | Not enough data | 9.0 (1235 reviews) | 
| **Multiple Calendar Management** | Not enough data | Not enough data | 8.9 (1181 reviews) | 

#### Accessibility

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Screen Reader Compatibility** | Not enough data | Not enough data | 8.8 (1057 reviews) | 
| **Keyboard Shortcuts** | Not enough data | Not enough data | 8.6 (1077 reviews) | 

#### Integration

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Sync Multiple Calendars** | Not enough data | Not enough data | 8.8 (1135 reviews) | 
| **Import Events** | Not enough data | Not enough data | 8.8 (1139 reviews) | 
| **Software Integrations** | Not enough data | Not enough data | 8.9 (1231 reviews) | 

#### Notifications

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Customized Calendar Notifications** | Not enough data | Not enough data | 9.0 (1179 reviews) | 
| **Location-Based Alerts** | Not enough data | Not enough data | 8.5 (970 reviews) | 

#### Generative AI

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **AI Text-to-Image** | Not enough data | Not enough data | 7.4 (420 reviews) | 
| **AI Text-to-Speech** | Not enough data | Not enough data | 7.5 (421 reviews) | 
| **AI Image-to-Text** | Not enough data | Not enough data | 7.3 (420 reviews) | 

#### Agentic AI - Calendar

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Cross-system Integration** | Not enough data | Not enough data | 7.7 (164 reviews) | 

### Email Management

| Product | Score | Reviews |
|---|---|---|
| **Mailbird** | 5.8/10 | 13 |
| **Thunderbird** | 8.9/10 | 9 |
| **Microsoft Outlook** | N/A | N/A |

#### Sorting & Filtering

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Attachment Search** | 5.5 (13 reviews) | 9.2 (6 reviews) | Not enough data | 
| **Tags** | Feature Not Available | 10.0 (7 reviews) | Not enough data | 
| **AI Sorting** | Feature Not Available | 8.0 (5 reviews) | Not enough data | 
| **Predefined Rules** | 4.7 (11 reviews) | 9.2 (6 reviews) | Not enough data | 

#### Integrations

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Microsoft Outlook Integration** | Feature Not Available | 8.3 (6 reviews) | Not enough data | 
| **Gmail Integration** | Feature Not Available | 9.0 (7 reviews) | Not enough data | 
| **Apple Calendar Integration** | Feature Not Available | 8.1 (6 reviews) | Not enough data | 

#### Time Management

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Unified Inbox** | 6.9 (12 reviews) | 9.4 (6 reviews) | Not enough data | 
| **Email Automation** | Feature Not Available | 8.8 (7 reviews) | Not enough data | 
| **Snooze** | 6.1 (11 reviews) | 9.0 (5 reviews) | Not enough data | 

#### Generative AI

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **AI Text Generation** | Feature Not Available | Not enough data | Not enough data | 
| **AI Text-to-Speech** | Feature Not Available | Not enough data | Not enough data | 
| **AI Text Summarization** | Feature Not Available | Not enough data | Not enough data | 

#### Agentic AI - Email Management

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 

### Email

| Product | Score | Reviews |
|---|---|---|
| **Mailbird** | N/A | N/A |
| **Thunderbird** | N/A | N/A |
| **Microsoft Outlook** | 7.9/10 | 502 |

#### Generative AI

| Feature | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 7.8 (464 reviews) | 
| **AI Text Summarization** | Not enough data | Not enough data | 7.9 (459 reviews) | 
| **AI Text-to-Speech** | Not enough data | Not enough data | 7.7 (452 reviews) | 
| **Autonomous Task Execution** | Not enough data | Not enough data | 7.8 (139 reviews) | 
| **Cross-system Integration** | Not enough data | Not enough data | 8.3 (149 reviews) | 
| **Proactive Assistance** | Not enough data | Not enough data | 8.1 (141 reviews) | 

---
## Categories
**Shared Categories (1):** [Email Client Software](https://www.g2.com/categories/email-client)

**Unique to Mailbird (1):** [Email Management Software](https://www.g2.com/categories/email-management)

**Unique to Thunderbird (1):** [Email Management Software](https://www.g2.com/categories/email-management)

**Unique to Microsoft Outlook (2):** [Calendar Software](https://www.g2.com/categories/calendar-software), [Email Software](https://www.g2.com/categories/email)


---
## Reviewer Demographics

### By Company Size

| Segment | Mailbird | Thunderbird | Microsoft Outlook | 
|---|---|---|---|
| **Small-Business** | 80.2% | 65.1% | 25.3% | 
| **Mid-Market** | 16.7% | 24.4% | 36.6% | 
| **Enterprise** | 3.1% | 10.5% | 38.2% | 

### By Industry

#### Mailbird

- **Information Technology and Services:** 20.8%
- **Marketing and Advertising:** 11.5%
- **Computer Software:** 9.4%
- **Entertainment:** 4.2%
- **Computer & Network Security:** 4.2%
- **Graphic Design:** 3.1%
- **Retail:** 3.1%
- **Legal Services:** 2.1%
- **Commercial Real Estate:** 2.1%
- **Internet:** 2.1%
- **Other:** 37.5%

#### Thunderbird

- **Information Technology and Services:** 13.0%
- **Computer Software:** 11.7%
- **Internet:** 6.6%
- **Marketing and Advertising:** 5.1%
- **Telecommunications:** 3.3%
- **Higher Education:** 2.7%
- **Consumer Goods:** 2.4%
- **Design:** 2.4%
- **Education Management:** 2.1%
- **Renewables & Environment:** 2.1%
- **Other:** 48.5%

#### Microsoft Outlook

- **Information Technology and Services:** 13.3%
- **Computer Software:** 8.1%
- **Financial Services:** 3.6%
- **Hospital & Health Care:** 3.5%
- **Higher Education:** 3.3%
- **Marketing and Advertising:** 3.3%
- **Education Management:** 2.8%
- **Staffing and Recruiting:** 2.6%
- **Accounting:** 2.5%
- **Construction:** 2.2%
- **Other:** 54.7%

---
## Alternatives

### Alternatives to Mailbird

- [Front](https://www.g2.com/products/front/reviews) — 4.7/5 stars (2466 reviews)
- [Spike](https://www.g2.com/products/spike/reviews) — 4.6/5 stars (262 reviews)
- [BlueMail](https://www.g2.com/products/bluemail/reviews) — 4.3/5 stars (53 reviews)
- [Shift](https://www.g2.com/products/redbrick-shift/reviews) — 4.5/5 stars (264 reviews)
- [eM Client](https://www.g2.com/products/em-client/reviews) — 4.0/5 stars (61 reviews)
- [Mailspring](https://www.g2.com/products/mailspring/reviews) — 3.8/5 stars (18 reviews)
- [Superhuman Mail](https://www.g2.com/products/superhuman-mail/reviews) — 4.7/5 stars (1245 reviews)
- [Canary Mail](https://www.g2.com/products/canary-mail/reviews) — 4.5/5 stars (53 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56388 reviews)
- [Hiver](https://www.g2.com/products/hiver/reviews) — 4.6/5 stars (1283 reviews)

### Alternatives to Thunderbird

- [Front](https://www.g2.com/products/front/reviews) — 4.7/5 stars (2466 reviews)
- [Spike](https://www.g2.com/products/spike/reviews) — 4.6/5 stars (262 reviews)
- [BlueMail](https://www.g2.com/products/bluemail/reviews) — 4.3/5 stars (53 reviews)
- [Shift](https://www.g2.com/products/redbrick-shift/reviews) — 4.5/5 stars (264 reviews)
- [eM Client](https://www.g2.com/products/em-client/reviews) — 4.0/5 stars (61 reviews)
- [Zimbra Desktop](https://www.g2.com/products/zimbra-desktop/reviews) — 4.4/5 stars (22 reviews)
- [Mailspring](https://www.g2.com/products/mailspring/reviews) — 3.8/5 stars (18 reviews)
- [K-9 Mail](https://www.g2.com/products/k-9-mail/reviews) — 4.5/5 stars (13 reviews)
- [Superhuman Mail](https://www.g2.com/products/superhuman-mail/reviews) — 4.7/5 stars (1245 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56388 reviews)

### Alternatives to Microsoft Outlook

- [Spike](https://www.g2.com/products/spike/reviews) — 4.6/5 stars (262 reviews)
- [Google Workspace](https://www.g2.com/products/google-workspace/reviews) — 4.6/5 stars (48003 reviews)
- [Superhuman Mail](https://www.g2.com/products/superhuman-mail/reviews) — 4.7/5 stars (1245 reviews)
- [Zoho Mail](https://www.g2.com/products/zoho-mail/reviews) — 4.4/5 stars (714 reviews)
- [Calendly](https://www.g2.com/products/calendly/reviews) — 4.7/5 stars (2639 reviews)
- [Front](https://www.g2.com/products/front/reviews) — 4.7/5 stars (2466 reviews)
- [Proton Mail For Business](https://www.g2.com/products/proton-mail-for-business/reviews) — 4.6/5 stars (314 reviews)
- [Shift](https://www.g2.com/products/redbrick-shift/reviews) — 4.5/5 stars (264 reviews)
- [iCal](https://www.g2.com/products/ical/reviews) — 4.1/5 stars (196 reviews)
- [Titan](https://www.g2.com/products/titan-titan/reviews) — 4.6/5 stars (561 reviews)

---
## Top Discussions

### Mailbird

- Title: [Is Mailbird really free?](https://www.g2.com/discussions/is-mailbird-really-free) — 2 comments
  > **Top comment:** "No! Mailbird isn't free, but offers a 14-day free trial. Also, keep in mind that the company is developing another email client - it is called Mailbird Next...."
- Title: [Is Mailbird any good?](https://www.g2.com/discussions/is-mailbird-any-good) — 1 comment
  > **Top comment:** "Bruh it's hella chill."
- Title: [Why do my emails get stuck in the outbox?](https://www.g2.com/discussions/why-do-my-emails-get-stuck-in-the-outbox) — 1 comment
  > **Top comment:** "Mailbird support is horrible - simply right click on the mailbird icon and make sure to select "exit mailbird". Don't just click the X on top to close the..."
- Title: [I need a JOB!!!! let me work with you all.](https://www.g2.com/discussions/49856-i-need-a-job-let-me-work-with-you-all) — 1 comment
  > **Top comment:** "Joseph,
I have periodic problems with Thunderbird.    I have only two personal email accounts to manage.   Is Mailbird my best option for Win 10 or 11?   If..."

### Thunderbird

- Title: [Has anyone managed to use the copy and paste function from excell?](https://www.g2.com/discussions/12306-has-anyone-managed-to-use-the-copy-and-paste-function-from-excell) — 2 comments, 1 upvote
  > **Top comment:** "Strange -- when I do it, the columns and rows are maintained (though some of the formatting is not kept). 

What version are you using? I'm still using..."
- Title: [What is the use of Thunderbird software?](https://www.g2.com/discussions/what-is-the-use-of-thunderbird-software) — 1 comment, 1 upvote
  > **Top comment:** "It allows you to manage multiple emails in a single window without back and forth switching. That's the main use I found. Besides that, it also has a good..."
- Title: [Has anyone managed to use the copy and paste function from excell?](https://www.g2.com/discussions/30110-has-anyone-managed-to-use-the-copy-and-paste-function-from-excell) — 1 comment
  > **Top comment:** "Thunderbird does not recognize Excel’s formatting the way Outlook can. But, it can recognize formatting from Word. Copy paste from Excel to Word, then from..."

### Microsoft Outlook

- Title: [What are the latest integrations and features in Microsoft Outlook that enhance email communication and productivity?](https://www.g2.com/discussions/microsoft-outlook-what-are-the-latest-integrations-and-features-in-microsoft-outlook-that-enhance-email-communication-a) — 6 comments, 3 upvotes
  > **Top comment:** "I like that you can pin conversations to the top of the email."
- Title: [What are the features of Outlook?](https://www.g2.com/discussions/what-are-the-features-of-outlook) — 5 comments
  > **Top comment:** "Mail and calendar are the top features."
- Title: [What business advantages does Outlook give over Gmail?](https://www.g2.com/discussions/best-for-business) — 5 comments, 1 upvote
  > **Top comment:** "There are several. One main one is that your email is stored (with Exchange) on your own server's rather than Google's. Also, there is built-in MS Office..."
- Title: [What are the latest integrations and features in Microsoft Outlook that enhance email communication and productivity?](https://www.g2.com/discussions/what-are-the-latest-integrations-and-features-in-microsoft-outlook-that-enhance-email-communication-and-productivity) — 4 comments, 1 upvote
  > **Top comment:** "It's actually too much to generalize. But it has provided a stronger back protection against spam mails, an artificial intelligence integration that can..."
- Title: [What is Microsoft Outlook used for?](https://www.g2.com/discussions/what-is-microsoft-outlook-used-for) — 4 comments
  > **Top comment:** "Microsoft outlook is used to send and receive emails. it is also used to manage calendar, tasks, meetings and contacts"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/mailbird-vs-thunderbird-vs-microsoft-outlook)