Flagsmith

flagsmith.com
DevOps
Weekend Project

Ship Faster and Control Releases with Feature Flag Management

How to Replace Flagsmith

Overview

Flagsmith is an open source feature flag and remote config service that enables teams to safely roll out, segment, and optimize features across web, mobile, and server-side applications. It provides granular control over feature releases with support for A/B testing, user segmentation, and multiple deployment options including cloud, private cloud, and on-premises hosting.

Features

49 features across 15 categories

Automation(1)

Scheduled Flags

Schedule feature flag changes to activate at specific times without manual intervention

Also in: monday.com, Notion, Airtable

Configuration(2)

Custom FieldsPremium

Create custom fields for feature flag configuration and management

Multiple Environments

Create and manage unlimited development, staging, and production environments

Core Functionality(2)

Feature Flags

Wrap sections of code with flags and manage feature toggles across web, mobile, and server-side applications without code deployment

Remote Configuration

Customize feature values and configurations in real-time without code changes or app store approvals, allowing deployment of functional and visual changes

Deployment(4)

Cloud HostingPremium

Enterprise-grade SaaS cloud hosting with global optimization across eight regions for minimal latency

On-Premises DeploymentPremium

Self-host feature flags on-premises or in your own cloud infrastructure with Helm and OpenShift support

Open Source

Open source codebase available for transparency and community contributions

Private CloudPremium

Fully managed private deployments in any cloud provider and region of choice

Also in: Kubernetes Dashboard, Hugging Face, Bitwarden

Developer Tools(13)

.NET SDK

Official .NET SDK for feature flag integration

Android/Kotlin SDK

Official Android and Kotlin SDK for mobile feature flag integration

Flutter SDK

Official Flutter SDK for cross-platform mobile feature flag integration

Go SDK

Official Go SDK for feature flag integration

iOS SDK

Official iOS SDK for native mobile feature flag integration

Next.js SDK

Official Next.js isomorphic SDK for server-side and client-side flag management

Node.js SDK

Official Node.js SDK for server-side feature flag management

PHP SDK

Official PHP SDK for feature flag integration

Python SDK

Official Python SDK for feature flag integration

React SDK

Official React and React Native SDK for feature flag integration

Ruby SDK

Official Ruby SDK for feature flag integration

Rust SDK

Official Rust SDK for feature flag integration

SDKs

Official SDKs for multiple programming languages and frameworks

Also in: Jobber, Hugging Face, 1Password

Governance(3)

Audit LogsPremium

Maintain unlimited audit log history with tracking of all changes per logged-in team member

Change ControlPremium

Implement change request workflows for governance and security in feature management

Change Tracking

Log all changes to features for auditing purposes and enable painless rollback of updates

Also in: MuleSoft, Looker, Okta

Integration(3)

Analytics Integrations

Integrate with popular customer data platforms and analytics products to analyze test results

REST API

Access feature flags through REST API endpoints for integration with external systems

Third-Party Integrations

Connect with external tools and platforms

Also in: monday.com, Notion, Airtable

Performance(2)

Edge APIPremium

Real-time flag delivery with global low latency optimization across multiple regions

Real-Time FlagsPremium

Deliver flag updates in real-time to applications

Also in: Jira Service Management, Hugging Face, WordPress.com

Release Management(2)

Canary Deployments

Implement canary deployment practices with granular segmentation rules

Staged Feature Rollouts

Deploy features to a percentage of user base with easy scaling or rollback based on performance metrics

Scalability(1)

Unlimited Identities

Support unlimited user identities and segments within fair usage policy

Security(6)

ADFS SupportPremium

Enterprise SSO support through Active Directory Federation Services

LDAP SupportPremium

Enterprise directory support through LDAP protocol

Okta IntegrationPremium

Enterprise SSO support through Okta

Role-Based Access ControlPremium

Control feature management access with role-based permissions and user roles

SAML AuthenticationPremium

Enterprise SSO support through SAML protocol

Two-Factor Authentication

Secure account access with 2FA support

Support(4)

Email Support

Email-based technical support included in certain plans

Enterprise SLAPremium

Service level agreements for enterprise deployments

On-Boarding and TrainingPremium

Enterprise on-boarding and training services

Priority SupportPremium

Priority technical support via chat, Discord, Slack, and Teams

Targeting(2)

Segmentation

Manage feature flags by development environment, individual users, user segments, or percentage of user base for precise control

User Segments

Create detailed user segments based on stored traits and roll out features based on segments without code changes

Testing(3)

A/B Testing

Drive A/B and multivariate tests with percentage splits across two or more variations for precise testing and experimentation

Multivariate Testing

Use multivariate flags to test multiple variations and run A/B/n testing with granular control

Production Testing

Test features in production by creating internal user segments and exposing features only to internal teams

User Management(1)

User Traits

Store traits associated with users to enable understanding of user base characteristics like early adopters and most active users

Pricing

Free

Free
  • Up to 50,000 Requests Per Month
  • 1 Team Member
  • Unlimited Feature Flags
  • Unlimited Environments
  • Unlimited Identities and Segments
  • 3rd Party Integrations
  • A/B and MVT Testing
  • Online Terms and Conditions
  • API Access

Start-Up

$40/mo or $45/mo
  • Up to 1,000,000 Requests Per Month
  • 3 Team Members
  • Unlimited Feature Flags
  • Unlimited Projects
  • Unlimited Environments
  • Unlimited Identities and Segments
  • Email Technical Support
  • Scheduled Flags
  • Two-Factor Authentication (2FA)
  • 3rd Party Integrations
  • A/B and MVT Testing
  • Online Terms and Conditions
  • API Access

Enterprise

Custom
  • 5,000,000+ Requests Per Month
  • 20+ Team Members
  • Unlimited Feature Flags
  • Unlimited Projects
  • Unlimited Environments
  • Unlimited Identities and Segments
  • Advanced Hosting Options
  • Priority Real-Time Technical Support
  • Governance Features (Roles, Permissions, Change Requests, Audit Logs)
  • Features for Maximum Security
  • Optional On-Premise or Private Cloud Installation
  • On-Boarding and Training
  • Enterprise SLA
  • Cloud Global low latency on Edge API
  • 3rd Party Integrations
  • A/B and MVT Testing
  • Online Terms and Conditions
  • API Access

Cost Calculator

Keep Paying Flagsmith

Monthly$40/mo
Yearly$480/yr
5-Year Total$2.4k

Build It Yourself

Est. Build Time~4 hrs
Hosting$20/mo
DifficultyVery Easy

Total Cost Comparison

1 YearSave $240
SaaS
$480
DIY
$240
3 YearsSave $720
SaaS
$1.4k
DIY
$720
5 YearsSave $1.2k
SaaS
$2.4k
DIY
$1.2k

DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 49 features at very easy complexity.

Build vs Buy

Should you build a Flagsmith alternative or buy the subscription? Estimate based on 49 features.

Buy Flagsmith

Better Value
Monthly cost$400/mo
3-year total$14,400
Time to deployDays

Build Your Own

Development cost$24,000
Maintenance$360/mo
3-year total$36,960
Dev time~2 months

Buying Flagsmith saves ~$22,560 over 3 years vs building.

Estimates based on 49 features and a BuildScore of 5/5. Actual costs vary.

Integrations

6 known integrations

Analytics PlatformsCustomer Data PlatformsDiscordGitHubSlackTeams