# AWS Certificate Manager vs AWS Key Management Service (KMS) Comparison

| | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Star Rating** | 4.5 out of 5 | 4.4 out of 5 | 
| **Total Reviews** | 58 | 33 | 
| **Largest Market Segment** | Mid-Market (49.1% of reviews) | Enterprise (56.7% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | 

---
## Top Pros & Cons

### AWS Certificate Manager

**Not enough data**

### AWS Key Management Service (KMS)

Pros:
- Azure Services (1 reviews)
- Cloud Services (1 reviews)

Cons:
- Access Issues (1 reviews)
- Connectivity Issues (1 reviews)

---
## Ratings Comparison
| Rating | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
  | **Meets Requirements** | 9.0 (52 reviews) | 8.9 (22 reviews) | 
  | **Ease of Use** | 9.0 (53 reviews) | 8.4 (22 reviews) | 
  | **Ease of Setup** | 8.6 (38 reviews) | 8.8 (10 reviews) | 
  | **Ease of Admin** | 9.1 (37 reviews) | 8.5 (9 reviews) | 
  | **Quality of Support** | 8.6 (43 reviews) | 8.7 (21 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.3 (34 reviews) | 8.3 (9 reviews) | 
  | **Product Direction (% positive)** | 8.3 (49 reviews) | 8.3 (21 reviews) | 

---
## Pricing

### AWS Certificate Manager

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### AWS Key Management Service (KMS)

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### SSL & TLS Certificate Tools

| Product | Score | Reviews |
|---|---|---|
| **AWS Certificate Manager** | 8.6/10 | 18 |
| **AWS Key Management Service (KMS)** | N/A | N/A |

#### Administration

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Notifications** | 8.2 (16 reviews) | Not enough data | 
| **Warranty** | 8.9 (14 reviews) | Not enough data | 
| **Server License** | 9.0 (13 reviews) | Not enough data | 
| **Free Reissues** | 8.0 (14 reviews) | Not enough data | 

#### Functionality

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Multi-Domain Support** | 8.7 (14 reviews) | Not enough data | 
| **Browser Support** | 8.3 (15 reviews) | Not enough data | 
| **Site Seal** | 7.7 (14 reviews) | Not enough data | 
| **AI Features** | Not enough data | Not enough data | 

#### Security

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Domain Validated SSL** | 8.2 (15 reviews) | Not enough data | 
| **Issuance Speed** | 9.3 (17 reviews) | Not enough data | 
| **Encryption Strength** | 9.3 (15 reviews) | Not enough data | 
| **Extended Validation SSL** | Not enough data | Not enough data | 
| **Organization Validated SSL** | Not enough data | Not enough data | 

### Encryption Key Management

| Product | Score | Reviews |
|---|---|---|
| **AWS Certificate Manager** | N/A | N/A |
| **AWS Key Management Service (KMS)** | N/A | N/A |

#### Functionality

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Durability** | Not enough data | Not enough data | 
| **Envelope Encryption** | Not enough data | Not enough data | 
| **Automation** | Not enough data | Not enough data | 

#### Availability

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **API/Integrations** | Not enough data | Not enough data | 
| **Service Integration** | Not enough data | Not enough data | 
| **Regional Support** | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | 

#### Administration

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Auditing** | Not enough data | Not enough data | 
| **Compliance** | Not enough data | Not enough data | 
| **Management Console** | Not enough data | Not enough data | 

### Certificate Lifecycle Management (CLM)

| Product | Score | Reviews |
|---|---|---|
| **AWS Certificate Manager** | 8.1/10 | 9 |
| **AWS Key Management Service (KMS)** | N/A | N/A |

#### Functionality

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Certificate Discovery** | 8.1 (8 reviews) | Not enough data | 
| **Expiration Monitoring** | 8.1 (9 reviews) | Not enough data | 
| **Automated Certificate Operations** | 9.2 (8 reviews) | Not enough data | 
| **Policy And Role-Based Access Controls** | 8.7 (9 reviews) | Not enough data | 
| **Workflow** | 8.1 (9 reviews) | Not enough data | 
| **Protocol Support** | 7.9 (8 reviews) | Not enough data | 
| **Reporting And Search** | 6.5 (8 reviews) | Not enough data | 
| **Audit And Enforcement** | 8.1 (9 reviews) | Not enough data | 
| **Key Storage** | 8.3 (8 reviews) | Not enough data | 

### Data Security

| Product | Score | Reviews |
|---|---|---|
| **AWS Certificate Manager** | N/A | N/A |
| **AWS Key Management Service (KMS)** | N/A | N/A |

#### Compliance

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Access Management** | Not enough data | Not enough data | 
| **At-Risk Analysis** | Not enough data | Not enough data | 
| **DLP Configuration** | Not enough data | Not enough data | 
| **Sensitive Data Compliance** | Not enough data | Not enough data | 

#### Administration

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Database Management** | Not enough data | Not enough data | 
| **Deduplication ** | Not enough data | Not enough data | 
| **Backup** | Not enough data | Not enough data | 
| **API / integrations** | Not enough data | Not enough data | 

#### Security 

| Feature | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Multi-Factor Authentication** | Not enough data | Not enough data | 
| **Data Transport** | Not enough data | Not enough data | 
| **Data Types** | Not enough data | Not enough data | 
| **Security Tools** | Not enough data | Not enough data | 

---
## Categories

**Unique to AWS Certificate Manager (2):** [SSL & TLS Certificate Tools](https://www.g2.com/categories/ssl-tls-certificate-tools), [Certificate Lifecycle Management (CLM) Software](https://www.g2.com/categories/certificate-lifecycle-management-clm)

**Unique to AWS Key Management Service (KMS) (1):** [Encryption Key Management Software](https://www.g2.com/categories/encryption-key-management)


---
## Reviewer Demographics

### By Company Size

| Segment | AWS Certificate Manager | AWS Key Management Service (KMS) | 
|---|---|---|
| **Small-Business** | 27.3% | 23.3% | 
| **Mid-Market** | 49.1% | 20.0% | 
| **Enterprise** | 23.6% | 56.7% | 

### By Industry

#### AWS Certificate Manager

- **Information Technology and Services:** 21.8%
- **Computer Software:** 16.4%
- **Marketing and Advertising:** 9.1%
- **Financial Services:** 5.5%
- **Telecommunications:** 3.6%
- **Health, Wellness and Fitness:** 3.6%
- **Security and Investigations:** 3.6%
- **Retail:** 3.6%
- **Information Services:** 3.6%
- **Events Services:** 1.8%
- **Other:** 27.3%

#### AWS Key Management Service (KMS)

- **Computer Software:** 30.0%
- **Information Technology and Services:** 10.0%
- **Retail:** 6.7%
- **Computer & Network Security:** 6.7%
- **Program Development:** 6.7%
- **Airlines/Aviation:** 3.3%
- **Banking:** 3.3%
- **Computer Networking:** 3.3%
- **Consumer Electronics:** 3.3%
- **Financial Services:** 3.3%
- **Other:** 23.3%

---
## Alternatives

### Alternatives to AWS Certificate Manager

- [DigiCert ONE](https://www.g2.com/products/digicert-one/reviews) — 4.4/5 stars (34 reviews)
- [DigiCert Trust Lifecycle Manager](https://www.g2.com/products/digicert-digicert-trust-lifecycle-manager/reviews) — 3.8/5 stars (11 reviews)
- [Azure Key Vault](https://www.g2.com/products/azure-key-vault/reviews) — 4.5/5 stars (55 reviews)
- [Letsencrypt](https://www.g2.com/products/letsencrypt/reviews) — 4.8/5 stars (21 reviews)
- [OpenSSL](https://www.g2.com/products/openssl/reviews) — 4.5/5 stars (27 reviews)
- [Cloudflare Application Security and Performance](https://www.g2.com/products/cloudflare-application-security-and-performance/reviews) — 4.5/5 stars (616 reviews)
- [Sectigo Certificate Manager](https://www.g2.com/products/sectigo-certificate-manager/reviews) — 4.5/5 stars (187 reviews)
- [Keyfactor Command](https://www.g2.com/products/keyfactor-command/reviews) — 4.5/5 stars (84 reviews)
- [AppViewX CERT+](https://www.g2.com/products/appviewx-cert/reviews) — 4.5/5 stars (44 reviews)
- [Google Cloud Certificate Authority Service](https://www.g2.com/products/google-cloud-certificate-authority-service/reviews) — 4.4/5 stars (33 reviews)

### Alternatives to AWS Key Management Service (KMS)

- [Azure Key Vault](https://www.g2.com/products/azure-key-vault/reviews) — 4.5/5 stars (55 reviews)
- [IBM Vault (formerly HashiCorp Vault)](https://www.g2.com/products/ibm-vault-formerly-hashicorp-vault/reviews) — 4.3/5 stars (53 reviews)
- [Egnyte](https://www.g2.com/products/egnyte/reviews) — 4.4/5 stars (1161 reviews)
- [Virtru Email Encryption](https://www.g2.com/products/virtru-email-encryption/reviews) — 4.4/5 stars (417 reviews)
- [Google Cloud Key Management Service](https://www.g2.com/products/google-cloud-key-management-service/reviews) — 4.6/5 stars (17 reviews)
- [OpenSSH](https://www.g2.com/products/openssh/reviews) — 4.7/5 stars (42 reviews)
- [Akeyless Identity Security Platform](https://www.g2.com/products/akeyless-identity-security-platform/reviews) — 4.6/5 stars (91 reviews)
- [Keyfactor Command](https://www.g2.com/products/keyfactor-command/reviews) — 4.5/5 stars (84 reviews)
- [Doppler secrets management platform](https://www.g2.com/products/doppler-secrets-management-platform/reviews) — 4.8/5 stars (108 reviews)
- [Oracle Cloud Infrastructure Vault](https://www.g2.com/products/oracle-cloud-infrastructure-vault/reviews) — 4.3/5 stars (36 reviews)

---
## Top Discussions

### AWS Certificate Manager

- Title: [What is ACM validations AWS?](https://www.g2.com/discussions/what-is-acm-validations-aws) — 1 comment
  > **Top comment:** "DNS validation 
Email validation"

### AWS Key Management Service (KMS)

No discussions available for this product.

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/aws-certificate-manager-vs-aws-key-management-service-kms)