Feature Flags
Benchmarks of Feature Flags in Flutter
Why Performance Matters in Feature Flags When implementing feature flags in a mobile application…
Alexandru Puiu
February 08, 2025
3 min read
FEATURE FLAG MANAGEMENT
Transform Your Development Process
Ship features faster and safer with feature flags. Control releases, test in production, and measure impact - all without redeploying your code.
Trusted by development teams from startups to enterprises
Ready to Scale Your Development?
See how enterprise teams use Toggly to manage feature releases at scale. Book a personalized demo with our team.
Perfect for teams that need:
• Enterprise SSO & Role-Based Access
• Custom Deployment Strategies
• Advanced Analytics & Monitoring
- Core Feature Management
- Advanced Deployment
- Business Intelligence
Core Feature Management
Simple and Safe Feature Control
Start with the basics of feature management. Enable or disable features instantly, control access by environment, and maintain a complete audit trail of all changes.
Instant Control
Toggle features on/off without deployments
Environment Management
Dev, staging, and production controls
Change History
Full audit trail with rollback
Team Collaboration
Role-based access and permissions
Works With Your Stack
Simple Integration
Get started in minutes with our SDKs. Clean APIs, comprehensive docs.
- .NET SDK
- Flutter
- Angular
- Vue.js
- React
- Javascript
- HTML & CSS
1services.AddTogglyWeb(options =>
2{
3 options.AppKey = "<YOUR_APP_KEY>";
4 options.Environment = "<YOUR_APP_ENVIRONMENT>";
5});
6
7// Views
8<feature name="FeatureX,FeatureY" requirement="Any">
9 <p>This only be seen if 'FeatureX' or 'FeatureY' is enabled.</p>
10</feature>
11
12// Controllers & Actions
13[FeatureGate(FeatureFlags.Users)]
14[FeatureUsage(FeatureFlags.Users)]
15public class UsersController : Controller
16{
17 ...
18}
19
20//IFeatureManagerSnapshot
21var feature1Enabled = await _featureManager.IsEnabledAsync(FeatureFlags.Feature1);Real-World Examples
Feature Flags in Action
See how development teams use Toggly to solve real challenges and ship features with confidence.
Dark Mode Rollout
A fintech app gradually rolled out their new dark mode to beta users first, collected feedback, and then expanded to all users. Using feature flags, they could instantly disable it if any issues arose.
Payment System Migration
An e-commerce platform safely migrated from their legacy payment system to a new one by using feature flags to control the rollout. They started with 1% of transactions, monitoring for any issues before expanding.
A/B Testing New UI
A SaaS company tested two different onboarding flows simultaneously. Using feature flags, they directed 50% of new users to each version and measured completion rates to determine the most effective design.
Emergency Kill Switch
A social media platform used feature flags as a kill switch for their new commenting system. When they detected a spam attack, they instantly disabled the feature across all regions while maintaining the rest of the app.
Beta Testing Program
A productivity app managed their beta testing program using feature flags. Early access features were enabled only for users who opted into the beta program, making it easy to gather feedback before general release.
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Pricing
Starter
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Live Feature Toggles
1 Application Included
2 Environments
Unlimited Feature Flags
Feature Usage Dashboard
A/B Testing Business Metrics
Digitally Signed Definitions
Team
$19
/month
Everything in Starter
5 Applications Included
+ $3/additional application
Unlimited Environments
3 Team Members Included
+ $5/additional ream member
3rd Party Integration
* 30 Day Free Trial. No Credit Card Required
Business
$199
/month
Everything in Team
10 Applications Included
+ $5/additional application
15 Team Members Included
+ $10/additional team member
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All Integrations
App-level Permissions
API Access
* 30 Day Free Trial. No Credit Card Required
Ready to Scale Your Development?
See how enterprise teams use Toggly to manage feature releases at scale. Book a personalized demo with our team.
Perfect for teams that need:
• Enterprise SSO & Role-Based Access
• Custom Deployment Strategies
• Advanced Analytics & Monitoring
We Are Here To Help You
Frequently Asked Questions
No - our SDKs are designed for zero performance impact. All feature evaluations happen locally within your app, with no network calls during checks. Flag definitions are downloaded in the background and cached locally, so your app works offline and evaluations are instant. Our benchmarks show sub-millisecond evaluation times.
Feature flags give you control over your releases without needing to deploy code. They help you:
* Ship faster by deploying code that's hidden until ready
* Release safely by gradually rolling out to small user groups first
* Test in production with A/B testing and user targeting
* Respond quickly to issues with an instant kill switch
* Manage features across environments from development to production
This means less risk, faster development cycles, and better user experiences.
We offer official SDKs with full type support for:
* .NET (C#) - ASP.NET Core
* JavaScript/TypeScript - React, Vue, Angular, and Node.js
* Mobile - Flutter for iOS and Android
* Web - Pure HTML/CSS integration without coding
All our SDKs are open-source and designed for enterprise use. We're actively developing more integrations - reach out if you need support for another platform.
Your app continues to work normally - we've designed our SDKs to be fully resilient:
* All feature evaluations happen locally in your app with zero latency
* Feature definitions are cached locally and work offline
* Background updates use smart circuit breakers and auto-retry
Even in the rare case of an outage, the worst that can happen is your feature definitions stay the same until connectivity is restored. Your app's performance and reliability are never affected.
No - we take data privacy seriously. Here's how we protect your users' data:
* All feature evaluations happen locally in your app - no user data is sent during checks
* Our SDKs only send anonymous, aggregated metrics (like total feature usage counts)
* You have full control over what data is collected, with options to disable analytics entirely
* Our SDKs are open-source, so you can verify our privacy-first approach
We believe in transparency - you can review our SDK code on GitHub to see exactly how we handle data.
You can start using feature flags in your app in minutes:
* Install our SDK via package manager (npm, NuGet, etc.)
* Add one line to initialize the SDK with your API key
* Create your first feature flag in our dashboard
* Add a single line of code to check the flag state
Our detailed documentation and starter templates make it easy to get up and running quickly. Most teams complete their first feature flag implementation in under 30 minutes.
Security is built into every layer of our platform:
* All data is encrypted in transit and at rest
* Role-based access control (RBAC) for team management
* Environment separation with unique API keys
* Detailed audit logs of all changes
* Regular security assessments and penetration testing
We follow industry best practices and can provide additional documentation for enterprise security requirements.
Yes - we make migration straightforward:
* Import your existing feature flags via our API
* Run both systems in parallel during transition
* Gradually switch over at your own pace
Our team can provide guidance and support throughout the migration process to ensure a smooth transition without disruption to your users.
We provide comprehensive support to ensure your success:
* Detailed documentation and implementation guides
* Email support for all customers
* Priority support with SLA for business plans
* Enterprise support with dedicated technical contact
* Regular check-ins and quarterly business reviews for enterprise customers
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