
ExitLag
Smoothping
Mudfish
Razer Cortex
Kill Ping
Battleping
PingEnhancer
Play any online game from anywhere with a smoother connection and lower ping time. wtfast gives your fave games a VIP connection. Free trial available, too.

Keygen
The simplest way to license your app.

Which is more popular?
Based on our record, Keylight.dev seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | wtfast.com | keylight.dev |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Belgium · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of WTFast yet.
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.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of WTFast yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
WTFast, Outfox & Haste Lie About Improving Your Connection?
More videos
No Keylight.dev videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing WTFast and Keylight.dev.
Keylight.dev's answer:
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.
Keylight.dev's answer:
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.dev's answer:
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.dev's answer:
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.
Keylight.dev's answer:
That's confidential.
Keylight.dev's answer:
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
Share your experience with using WTFast and Keylight.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Wtfast is here to help you get rid of pesky online gaming problems and bid farewell to fortnite lag, pubg lag, dota 2 lag, csgo lag, LOL lag and hundred of other games. Wtfast, wtfast.
WTFast is also known as the Gamers’ Private Network (GPN), which is tailored to all of your MMO games. You will need a WTfast replacement for a variety of systems, including Windows, Mac, and Linux so that your laptop...
You don’t need an account. Just install the program and start using it to see how much your ping varies over time in single-player games too. And unlike WTFast where you have to create an account to use it in offline...
Recommendations tracked on public social media and blogs since March 2021.


Tracking WTFast since Mar 2021.
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... - 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
When comparing WTFast and Keylight.dev, you can also consider the following products.

There is a world without lags, freezes or loss of data packets. This world is called ExitLag! Get a free trial. Play better who plays with ExitLag!
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A dead-simple software licensing API built for developers
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Smoothping is your ping and lag lowering software.
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Boost your network experience with various WAN Optimization techniques guaranteeing your TCP or UDP connections more robust and faster.
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A free all-in-one software which gives you the best gaming experience, featuring best gaming deals, PC and Mobile Game Booster, and more!
Compare Razer Cortex to WTFast or Keylight.dev:

Kill Ping is an online gaming application which reduces high ping and packet loss eliminating lag. Kill Ping is a fix for LoL lag, WoW lag, Dota 2 lag, CS:GO lag, Overwatch lag, Battleborn lag and Doom 4 lag etc.
Compare Kill Ping to WTFast or Keylight.dev: