# GPTZero, ZeroGPT vs Grammarly Comparison

| | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Star Rating** | 4.3 out of 5 | 4.1 out of 5 | 4.7 out of 5 | 
| **Total Reviews** | 101 | 50 | 13,669 | 
| **Largest Market Segment** | Small-Business (55.0% of reviews) | Small-Business (58.0% of reviews) | Small-Business (51.9% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | No pricing available | 

---
## Top Pros & Cons

### GPTZero

Pros:
- Integrations (3 reviews)
- Ease of Use (2 reviews)

Cons:
- Inaccuracy (3 reviews)
- AI Limitations (2 reviews)

### ZeroGPT

**Not enough data**

### Grammarly

Pros:
- Writing Improvement (2173 reviews)
- Ease of Use (1765 reviews)

Cons:
- Incorrect Corrections (620 reviews)
- Inaccuracy (559 reviews)

---
## Ratings Comparison
| Rating | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
  | **Meets Requirements** | 8.5 (97 reviews) | 8.2 (49 reviews) | 9.2 (10390 reviews) | 
  | **Ease of Use** | 9.3 (99 reviews) | 9.0 (49 reviews) | 9.4 (10662 reviews) | 
  | **Ease of Setup** | 9.1 (97 reviews) | 8.9 (50 reviews) | 9.4 (4559 reviews) | 
  | **Ease of Admin** | 9.0 (17 reviews) | 8.6 (7 reviews) | 9.3 (2684 reviews) | 
  | **Quality of Support** | 8.6 (86 reviews) | 7.8 (43 reviews) | 9.0 (6751 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.8 (16 reviews) | 8.1 (6 reviews) | 9.4 (2643 reviews) | 
  | **Product Direction (% positive)** | 9.3 (97 reviews) | 9.3 (49 reviews) | 9.4 (10670 reviews) | 

---
## Pricing

### GPTZero

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### ZeroGPT

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Grammarly

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

---
## Features Comparison By Category

### AI Writing Assistant

| Product | Score | Reviews |
|---|---|---|
| **GPTZero** | N/A | N/A |
| **ZeroGPT** | N/A | N/A |
| **Grammarly** | 8.5/10 | 6847 |

#### Grammar

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Grammar Check** | Not enough data | Not enough data | 9.6 (5478 reviews) | 
| **Tone Check** | Not enough data | Not enough data | 9.0 (5233 reviews) | 
| **Sentence Formatting** | Not enough data | Not enough data | 9.2 (5278 reviews) | 

#### Formatting

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Plagiarism Check** | Not enough data | Not enough data | 8.3 (4476 reviews) | 
| **Style Editor** | Not enough data | Not enough data | 8.7 (4788 reviews) | 
| **Citation Finder** | Not enough data | Not enough data | 7.8 (4108 reviews) | 

#### Content 

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Idea Recommendation** | Not enough data | Not enough data | 8.5 (4557 reviews) | 
| **Content Generation** | Not enough data | Not enough data | 8.3 (4320 reviews) | 
| **Form Generation** | Not enough data | Not enough data | 7.9 (4033 reviews) | 

#### Product Type

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Standalone Application** | Not enough data | Not enough data | 8.5 (4367 reviews) | 
| **Plugin** | Not enough data | Not enough data | 8.7 (4596 reviews) | 

#### Generative AI

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 8.1 (3114 reviews) | 
| **AI Text Summarization** | Not enough data | Not enough data | 8.1 (3077 reviews) | 

### Plagiarism Checker

| Product | Score | Reviews |
|---|---|---|
| **GPTZero** | 8.2/10 | 53 |
| **ZeroGPT** | N/A | N/A |
| **Grammarly** | 8.4/10 | 1937 |

#### Database Type

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Custom Database** | 8.6 (50 reviews) | Not enough data | 8.2 (1225 reviews) | 
| **Internet Content** | 8.6 (50 reviews) | Not enough data | 8.6 (1296 reviews) | 
| **Proprietary Database** | 8.5 (48 reviews) | Not enough data | 8.2 (1206 reviews) | 
| **Academic Databases** | 8.3 (47 reviews) | Not enough data | 8.2 (1223 reviews) | 

#### Content Features

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Private Cloud** | 8.0 (49 reviews) | Not enough data | 8.0 (1198 reviews) | 
| **CMS Integrations** | 8.1 (48 reviews) | Not enough data | 8.0 (1179 reviews) | 
| **Itemized Reporting** | 8.2 (49 reviews) | Not enough data | 8.1 (1197 reviews) | 
| **Real-Time Evaluation** | 8.2 (48 reviews) | Not enough data | 8.8 (1315 reviews) | 

#### Software Type

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Browser Application** | 8.9 (50 reviews) | Not enough data | 8.9 (1364 reviews) | 
| **Desktop Application** | 6.7 (47 reviews) | Not enough data | 8.8 (1340 reviews) | 

### Proofreading

| Product | Score | Reviews |
|---|---|---|
| **GPTZero** | N/A | N/A |
| **ZeroGPT** | N/A | N/A |
| **Grammarly** | 8.4/10 | 9041 |

#### Grammar Tools

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Vocabulary Recommendations** | Not enough data | Not enough data | 8.9 (7590 reviews) | 
| **Sentence Rephrasing** | Not enough data | Not enough data | 8.8 (7686 reviews) | 
| **Dictionary** | Not enough data | Not enough data | 8.8 (7287 reviews) | 

#### Writing Support

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Text Reader** | Not enough data | Not enough data | 8.2 (6602 reviews) | 
| **Machine Translation** | Not enough data | Not enough data | 7.7 (5934 reviews) | 
| **Custom Style Guides** | Not enough data | Not enough data | 8.2 (6428 reviews) | 
| **Reporting** | Not enough data | Not enough data | 8.2 (6241 reviews) | 

#### Software Availability

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Word Processor** | Not enough data | Not enough data | 8.8 (6902 reviews) | 
| **Integrations** | Not enough data | Not enough data | 8.5 (6768 reviews) | 
| **Browser Plug-In** | Not enough data | Not enough data | 8.8 (7195 reviews) | 

#### Generative AI

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 7.8 (4992 reviews) | 
| **AI Text-to-Speech** | Not enough data | Not enough data | Feature Not Available | 
| **AI Text Summarization** | Not enough data | Not enough data | 7.8 (4949 reviews) | 

### Synthetic Media

| Product | Score | Reviews |
|---|---|---|
| **GPTZero** | N/A | N/A |
| **ZeroGPT** | N/A | N/A |
| **Grammarly** | N/A | N/A |

#### Audio

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Accents** | Not enough data | Not enough data | Not enough data | 
| **Voice Cloning** | Not enough data | Not enough data | Not enough data | 
| **Range of Tones** | Not enough data | Not enough data | Not enough data | 
| **Languages** | Not enough data | Not enough data | Not enough data | 

#### Video

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Closed Captions** | Not enough data | Not enough data | Not enough data | 
| **Avatar Quality** | Not enough data | Not enough data | Not enough data | 
| **Custom Avatars** | Not enough data | Not enough data | Not enough data | 
| **Video Editing Capabilities** | Not enough data | Not enough data | Not enough data | 

#### Image

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Text to Image** | Not enough data | Not enough data | Not enough data | 
| **Realism** | Not enough data | Not enough data | Not enough data | 

#### Text

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Text Optimization** | Not enough data | Not enough data | Not enough data | 
| **Range of Sentiments** | Not enough data | Not enough data | Not enough data | 

#### Platform

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Collaboration** | Not enough data | Not enough data | Not enough data | 
| **Speed of Generation** | Not enough data | Not enough data | Not enough data | 

#### Generative AI

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Image** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Speech** | Not enough data | Not enough data | Not enough data | 
| **AI Image-to-Text** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Video** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-3D** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Music** | Not enough data | Not enough data | Not enough data | 

### AI Content Detectors

| Product | Score | Reviews |
|---|---|---|
| **GPTZero** | 8.3/10 | 68 |
| **ZeroGPT** | 7.8/10 | 35 |
| **Grammarly** | N/A | N/A |

#### Content - AI Content Detectors

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Batch File Scans** | 8.1 (62 reviews) | 7.8 (34 reviews) | Not enough data | 
| **Color-Coded Detection** | 7.9 (62 reviews) | 7.6 (33 reviews) | Not enough data | 
| **Content Dashboard** | 8.6 (62 reviews) | 8.3 (33 reviews) | Not enough data | 
| **API Integration** | 7.9 (61 reviews) | 7.7 (35 reviews) | Not enough data | 

#### AI Detection Model - AI Content Detectors

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Model Differentiation** | 8.2 (64 reviews) | 7.5 (33 reviews) | Not enough data | 
| **Human vs. AI Detection** | 8.9 (66 reviews) | 8.0 (32 reviews) | Not enough data | 
| **Multi-Component Model** | 8.1 (62 reviews) | 7.6 (34 reviews) | Not enough data | 

#### Monitoring - AI Content Detectors

| Feature | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Real-time Content Monitoring** | 8.0 (65 reviews) | 7.4 (33 reviews) | Not enough data | 
| **Content Identification** | 8.8 (64 reviews) | 7.9 (32 reviews) | Not enough data | 

---
## Categories

**Unique to GPTZero (2):** [AI Content Detectors Software](https://www.g2.com/categories/ai-content-detectors), [Plagiarism Checker Software](https://www.g2.com/categories/plagiarism-checker)

**Unique to ZeroGPT (1):** [AI Content Detectors Software](https://www.g2.com/categories/ai-content-detectors)

**Unique to Grammarly (3):** [AI Writing Assistants](https://www.g2.com/categories/ai-writing-assistant), [Plagiarism Checker Software](https://www.g2.com/categories/plagiarism-checker), [Proofreading Software](https://www.g2.com/categories/proofreading)


---
## Reviewer Demographics

### By Company Size

| Segment | GPTZero | ZeroGPT | Grammarly | 
|---|---|---|---|
| **Small-Business** | 55.0% | 58.0% | 51.9% | 
| **Mid-Market** | 35.0% | 28.0% | 35.8% | 
| **Enterprise** | 10.0% | 14.0% | 12.4% | 

### By Industry

#### GPTZero

- **Information Technology and Services:** 20.0%
- **Higher Education:** 11.0%
- **Marketing and Advertising:** 8.0%
- **Education Management:** 6.0%
- **Writing and Editing:** 4.0%
- **Automotive:** 4.0%
- **Computer Software:** 4.0%
- **Health, Wellness and Fitness:** 3.0%
- **Accounting:** 2.0%
- **Animation:** 2.0%
- **Other:** 36.0%

#### ZeroGPT

- **Computer Software:** 22.0%
- **Information Technology and Services:** 18.0%
- **Staffing and Recruiting:** 6.0%
- **Marketing and Advertising:** 6.0%
- **Education Management:** 4.0%
- **Airlines/Aviation:** 2.0%
- **Automotive:** 2.0%
- **Chemicals:** 2.0%
- **Computer & Network Security:** 2.0%
- **Consumer Electronics:** 2.0%
- **Other:** 34.0%

#### Grammarly

- **Non-Profit Organization Management:** 12.0%
- **Marketing and Advertising:** 8.0%
- **Computer Software:** 7.7%
- **Information Technology and Services:** 7.4%
- **Higher Education:** 4.6%
- **Education Management:** 3.9%
- **Financial Services:** 3.1%
- **Primary/Secondary Education:** 2.6%
- **Consulting:** 2.4%
- **Hospital & Health Care:** 2.3%
- **Other:** 46.1%

---
## Alternatives

### Alternatives to GPTZero

- [Surfer](https://www.g2.com/products/surfer-surfer/reviews) — 4.8/5 stars (543 reviews)
- [Winston AI](https://www.g2.com/products/winston-ai/reviews) — 4.4/5 stars (13 reviews)
- [Originality.AI](https://www.g2.com/products/originality-ai/reviews) — 4.4/5 stars (215 reviews)
- [WriterZen](https://www.g2.com/products/writerzen/reviews) — 4.7/5 stars (201 reviews)
- [MiriCanvas](https://www.g2.com/products/miricanvas/reviews) — 4.7/5 stars (219 reviews)
- [AI Image Detector](https://www.g2.com/products/ai-image-detector/reviews) — 4.5/5 stars (41 reviews)
- [Feedback Studio](https://www.g2.com/products/feedback-studio/reviews) — 4.3/5 stars (125 reviews)
- [Undetectable AI](https://www.g2.com/products/undetectable-ai-undetectable-ai/reviews) — 4.4/5 stars (37 reviews)
- [PlagiarismCheck.org](https://www.g2.com/products/plagiarismcheck-org/reviews) — 4.8/5 stars (44 reviews)
- [ProWritingAid](https://www.g2.com/products/prowritingaid/reviews) — 4.5/5 stars (48 reviews)

### Alternatives to ZeroGPT

- [Surfer](https://www.g2.com/products/surfer-surfer/reviews) — 4.8/5 stars (543 reviews)
- [MiriCanvas](https://www.g2.com/products/miricanvas/reviews) — 4.7/5 stars (219 reviews)
- [Originality.AI](https://www.g2.com/products/originality-ai/reviews) — 4.4/5 stars (215 reviews)
- [Undetectable AI](https://www.g2.com/products/undetectable-ai-undetectable-ai/reviews) — 4.4/5 stars (37 reviews)
- [Corrector App](https://www.g2.com/products/corrector-app/reviews) — 4.4/5 stars (47 reviews)
- [AI Image Detector](https://www.g2.com/products/ai-image-detector/reviews) — 4.5/5 stars (41 reviews)
- [Humbot](https://www.g2.com/products/humbot/reviews) — 4.3/5 stars (21 reviews)
- [Content At Scale](https://www.g2.com/products/content-at-scale-content-at-scale/reviews) — 4.0/5 stars (15 reviews)
- [Sapling](https://www.g2.com/products/sapling-intelligence-inc-sapling/reviews) — 4.2/5 stars (14 reviews)
- [AI Voice Detector](https://www.g2.com/products/ai-voice-detector/reviews) — 4.5/5 stars (14 reviews)

### Alternatives to Grammarly

- [ProWritingAid](https://www.g2.com/products/prowritingaid/reviews) — 4.5/5 stars (48 reviews)
- [Writesonic](https://www.g2.com/products/writesonic/reviews) — 4.7/5 stars (2111 reviews)
- [Jasper](https://www.g2.com/products/jasper-ai/reviews) — 4.7/5 stars (1270 reviews)
- [Rytr](https://www.g2.com/products/rytr/reviews) — 4.7/5 stars (819 reviews)
- [Semrush](https://www.g2.com/products/semrush/reviews) — 4.5/5 stars (3378 reviews)
- [Pepper](https://www.g2.com/products/pepper-content-pepper/reviews) — 4.6/5 stars (496 reviews)
- [Anyword](https://www.g2.com/products/anyword/reviews) — 4.8/5 stars (1226 reviews)
- [Wordtune](https://www.g2.com/products/ai21labs-wordtune/reviews) — 4.6/5 stars (196 reviews)
- [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews)
- [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (11760 reviews)

---
## Top Discussions

### GPTZero

No discussions available for this product.

### ZeroGPT

No discussions available for this product.

### Grammarly

- Title: [How the readability score in Grammarly calculated? And what does it means?](https://www.g2.com/discussions/how-the-readability-score-in-grammarly-calculated-and-what-does-it-means) — 98 comments, 3 upvotes
  > **Top comment:** "Grammarly's readability score is based on the average length of sentences and words in your document, using a formula known as the Flesch reading ease test...."
- Title: [What are the benefits of using Grammarly Business for maintaining professionalism and clarity in business communication?](https://www.g2.com/discussions/what-are-the-benefits-of-using-grammarly-business-for-maintaining-professionalism-and-clarity-in-business-communication) — 16 comments, 4 upvotes
  > **Top comment:** "It helps with ensuring that your correspondence is precise and written with clarity."
- Title: [Is it possible to install it on all apps including powerpoint and browsers?](https://www.g2.com/discussions/is-it-possible-to-install-it-on-all-apps-including-powerpoint-and-browsers) — 12 comments, 1 upvote
  > **Top comment:** "When you download the correct extensions, it should work with many of your apps. It doesn't apply to all of them, however - excel for example - but it's..."
- Title: [What is Grammarly Business used for?](https://www.g2.com/discussions/what-is-grammarly-business-used-for) — 5 comments, 7 upvotes
  > **Top comment:** "In writing effective emails with right tone and no mistakes!"
- Title: [What is the business model of Grammarly?](https://www.g2.com/discussions/what-is-the-business-model-of-grammarly) — 4 comments, 2 upvotes
  > **Top comment:** "Grammarly's business model revolves around providing a premium grammar and spell-checking service for individuals, teams, and enterprise customers. The..."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/gptzero-vs-zerogpt-vs-grammarly)