Shipped a bad build?Fix it in seconds.
Instantly block broken releases, push critical updates, and communicate with your users — all without app store delays.
Update Required
A new version with critical fixes is available. Please update to continue.
Control every app release, instantly
Version Blocked
This version has been disabled due to a critical issue. Please update to continue.
Instantly prevent users from accessing buggy releases. One click to block any version causing issues in production.
Integrate in minutes
Add a few lines of code and start controlling your app remotely.
When to use semaphr
Critical bug fix
Force users to update immediately without waiting for app store review.
API migration
Ensure all users are on compatible versions before deprecating endpoints.
Security patch
Block affected versions instantly while you release the fix.
Planned maintenance
Show users a friendly message instead of error screens.
Simple, transparent pricing
Start free, scale when you need to
Startup
Everything you need to get started
- ✓Unlimited logs
- ✓Native & cross-platform SDKs
- ✓Block, notify & update messages
- ✓Usage analytics
- ✓Unlimited team members
- ✓Community support
Enterprise
For teams that need more control
- ✓Everything in Startup
- ✓Custom branding
- ✓Priority message delivery
- ✓Advanced analytics & export
- ✓Dedicated support
- ✓Enhanced security & SSO
Frequently Asked Questions
Are there any costs involved?
How can I use this service if I have multiple environments?
When will the users see the message?
Is my data secure?
Can you block only certain versions of the app?
Does Semaphr work for all my older versions?
How long does it take to integrate the Semaphr in my app?
Does it work on React Native?
Ship with confidence
Join hundreds of teams managing releases the simple way