This page is designed to help you find out whether Keylight.dev is good and if it is the right choice for you.
Keylight sits between your payment provider and your app. Licenses, activations, customers, and usage all live here. Switch providers, or run several, without shipping a new build.
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License Management
Create, validate, revoke, and manage software licenses from one dashboard.
Device Activations
Limit how many devices can use a license and manage individual activations.
Offline Access
Keep apps working securely without a constant internet connection using signed offline leases.
License States
Handle trial, free, paid, expired, limited, and grace-period access through one consistent state.
Payment Provider Integrations
Connect Stripe, Paddle, Lemon Squeezy, Polar, Gumroad, and other payment platforms.
Provider Independence
Change payment providers or use multiple providers without rebuilding your app’s licensing system.
Swift SDK Integration
Add licensing to macOS and iOS apps using a native Swift package.
Secure License Validation
Protect license data with cryptographic signatures and tamper-resistant validation.
Trials and Free Tiers
Configure trials, free plans, fallbacks, and upgrade paths without building custom logic.
Customer Dashboard
View licenses, customers, devices, activations, plans, and access status in one place.
License Analytics
Track activations, active licenses, usage, and customer activity.
Key Rotation
Rotate SDK signing keys without breaking older application versions.
Webhook Synchronization
Convert payment, renewal, refund, cancellation, and subscription events into license updates.
Device-Bound Storage
Store license data securely on the customer’s device without unnecessary Keychain prompts.
REST API
Connect custom backends, checkout systems, and internal tools to Keylight.
Agentic Orchestration
CLI usable by AI Agents to run the whole setup and more.
Keylight keeps app licensing separate from payments. You can use Stripe, Paddle, Lemon Squeezy, Polar, Gumroad, or your own checkout without tying your app to one provider.
It handles license keys, device activations, trials, free tiers, offline access, grace periods, and signed license state through one SDK.
My goal is to make all apps work with Keylight. So all of your licenses, from any types of apps, is going through Keylight for analytics, customer portal, support, ...
Most licensing tools are bundled into a payment provider. Keylight is built as an independent licensing layer.
That means you can change payment providers, sell through multiple platforms, or change your pricing model without rebuilding licensing inside your app.
It also gives developers a ready-made SDK and dashboard instead of requiring them to build and maintain their own licensing backend.
Keylight is primarily built for independent developers and software companies selling apps directly to customers.
Its main audience includes:
macOS and iOS developers Web app and SaaS developers Developers selling outside app stores Teams migrating from a payment provider’s built-in licensing Developers who need trials, device limits, offline access, and license analytics
Keylight started because I kept rebuilding the same licensing systems for different apps: license keys, trials, activations, offline access, device changes, and all the edge cases that come with them.
I also did not want licensing to be controlled by whichever payment provider an app happened to use.
So I built Keylight as a standalone layer between the app and the payment provider. Payment platforms send events to Keylight, and the app receives one consistent license state through the SDK.
That's confidential.
Swift and Swift Package Manager for the Apple SDK Rust SDK / JS SDK / C# SDK / C++ SDK TypeScript React Next.js Stripe Connect and payment-provider webhooks Cryptographic signatures for secure, offline-capable licenses REST APIs for application and provider integrations
We have collected here some useful links to help you find out if Keylight.dev is good.
Check the traffic stats of Keylight.dev on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Keylight.dev on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Keylight.dev's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Keylight.dev on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about Keylight.dev on Reddit. This can help you find out how popualr the product is and what people think about it.
You don't want to hand-roll Ed25519 and lease parsing. Most licensing SDKs hide this behind a couple of calls. With Keylight, for example, the offline path collapses to: activate once, then a local checkOnLaunch() that verifies the lease and hands you a state — licensed, trial, expired, invalid — with no network call. Entitlements ride inside the signed lease, so feature gating is offline too. Keygen, Cryptolens,... - Source: dev.to / 3 months ago
Full disclosure: I now build Keylight, so weigh this accordingly — I'm telling you the seam it's designed for, not that it wins every row. - Source: dev.to / 3 months ago
Full docs and the free tier are at keylight.dev. If you're on Tauri or Electron instead of native Swift, the same SDK pattern exists in JS/Rust. - Source: dev.to / 3 months ago
The done-for-you option is what Keylight exists for: one control plane with finished SDKs for Swift, Rust, JavaScript/TypeScript, C#, and C++, so the same licensing behaves identically across native macOS/Windows/Linux, Tauri, and Electron. Offline Ed25519-signed leases verify on-device, entitlements ride inside the lease, and connecting Stripe mints keys on payment — no webhook code. Disclosure: I build it. - Source: dev.to / 3 months ago
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