Acra

Acra is data-protection software for databases and applications, best suited to teams that want to encrypt sensitive fields without giving up control of deployment. Its flexible integration options and free Community Edition make it approachable to evaluate; enterprise policy management and support require a significant annual spend.

Overview

Acra protects sensitive data in SQL and NoSQL databases, web applications, and backend applications. Teams can put it in the database path as a transparent SQL proxy, call an HTTP or gRPC encryption API, or integrate client-side SDKs. That range is useful for systems with different architectures, but choosing among the options depends on how each application handles data.

It supports hybrid deployments and is cloud-agnostic, with active testing and support on Google Cloud Platform, AWS, and DigitalOcean. Server components run on Linux distributions including CentOS, RHEL, Debian, and Ubuntu, with Docker and Kubernetes-compatible images documented. Windows is not a supported server host: Windows clients can connect to Acra on a Linux server, but the server components should not run on Windows.

Key features

Acra offers field-level and searchable encryption, tokenization, and data masking. This lets teams choose protection suited to particular data and application flows, rather than treating all stored information alike. The Community Edition covers encryption and masking, while Enterprise adds broader features and controls.

AcraServer supports PostgreSQL and MySQL wire protocols, including PostgreSQL 9.4+, MySQL 5.7+, and MariaDB 10.3. The Community Edition does not support MySQL Protocol X, a meaningful constraint for teams whose MySQL deployments rely on it. The maker also identifies MongoDB, Redis, Cassandra, and TimescaleDB among supported NoSQL and key-value stores.

Key-management integrations include Amazon KMS, Google Cloud KMS, HashiCorp Vault, Keywhiz, and HSMs. Acra can detect requests for planted poison records or honeytokens, raise an alarm, and halt decryption. Its security logging supports SIEM/SOC analytics, while a crypto-signed audit log records access and security events. These controls make it relevant to teams that need both protection and visibility into suspicious access.

Pricing

Acra uses a freemium model. Community Edition costs nothing, is free forever for nonprofit and business use, and includes encryption and masking, a SQL request firewall, basic intrusion detection, and a single configuration policy. It is a sensible fit for prototyping and small projects; the single policy and MySQL Protocol X exclusion can rule it out for more demanding deployments.

Enterprise Edition starts at $10,000 a year, billed starting at $10000 annually. Pricing depends on the number of deployments and requested features. It includes all Acra features and controls, policy management, DevOps/SRE tooling, and support tiers. This is the relevant option for large-scale deployments needing those capabilities, but the starting price is a substantial commitment. The maker also offers a free evaluation playground running Enterprise Edition for selected popular use cases.

The bespoke solution has custom pricing, based on included services and case-by-case requirements. It covers customized masks and protocols, customized behavior, use-case-specific features, and engineering and architecture support. Multiple support tiers are offered, including integration assistance, solution support, and 24/7 solution support.

Platforms

Acra's server-side deployment is Linux-based, with Docker and Kubernetes-compatible images and cloud-agnostic hosting. It is actively tested and supported on AWS, Google Cloud Platform, and DigitalOcean. The platform information also identifies Android, iOS, and API support; Windows clients can connect to a Linux-hosted server, but Windows is not suitable as the server operating system.

Who it's for

Acra fits development and security teams protecting sensitive data across databases and applications, particularly when they need a choice of proxy, API, or SDK integration and external key-management options. Community Edition is aimed at prototyping and small-scale work. Larger deployments are better suited to Enterprise, provided its annual starting price fits the budget. Teams requiring a Windows-hosted server should look elsewhere.

Pros and cons

• Pros: Proxy, HTTP/gRPC API, and SDK deployment forms accommodate different application architectures.
• Pros: Encryption, masking, tokenization, and searchable encryption provide several ways to protect and use sensitive data.
• Pros: KMS, Vault, Keywhiz, and HSM integrations support teams with existing key-management infrastructure.
• Pros: Poison-record detection, decryption halting, SIEM-oriented logging, and signed audit records combine detection with event visibility.
• Cons: Server components require Linux, so organizations committed to Windows server hosting cannot deploy Acra that way.
• Cons: Community Edition lacks MySQL Protocol X and limits users to one configuration policy.
• Cons: Enterprise starts at $10,000 a year, putting its full feature set beyond some smaller teams' budgets.

Alternatives

Cloud Encryption Software is a broader category to explore when comparing cloud-focused protection options.

Cryptomator is an alternative with a free plan and public source code for community security audits; consider it when open-source availability is a priority.

MySQL is a freemium database option for teams seeking SQL and NoSQL applications plus replication and high-availability components, rather than Acra's data-protection layer.

Thales CipherTrust Data Security Platform offers a free Community Edition; consider it when that platform's community option better fits your evaluation.

Entrust Certificate Manager is a paid alternative with no free plan.

Evervault offers a freemium Platform plan at $995 a month plus usage, recommended for under 25K transactions per month; consider it if that stated transaction range and pricing model suit your needs.

PK Protect is another paid option.

Skyflow is a paid alternative with a free trial and custom pricing based on platform fees, data subjects, localization regions, and feature requirements.

Confidencial offers an Enterprise plan with pricing by contacting the company for a demo.

Verdict

Choose Acra if your team needs flexible ways to integrate data protection, external key-management options, and detection and audit controls, and can run its server components on Linux. Community Edition is a practical starting point for prototypes and small projects; for larger deployments, weigh Enterprise's broad controls against its $10000 annual starting price. Look elsewhere if you require a Windows server host or need MySQL Protocol X in the free edition.