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TreeSize VS Keylight.dev

Compare TreeSize VS Keylight.dev and see what are their differences

TreeSize

TreeSize tells you where precious disk space has gone to.

Rating
0 reviews
Alternatives Is it good?
Keylight.dev

The simplest way to license your app.

Rating
5.0 · 1 review
Pricing
Open source Freemium $19 / Monthly (Up to 2000 licenses active.)
Alternatives Is it good?
cobwebs.app
Tap a thing and the counter resets. A quiet, local-first day counter for the things you keep meaning to do. No account needed, no spreadsheet. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Keylight.dev seems to be more popular. It has been mentioned 4 times since March 2021.

social mentions
0 vs 4
Disk Analyzer popularity
100% vs 0%
alternatives listed
204 vs 1

Base details

Website, pricing, platforms and company facts side by side.

TreeSize
Keylight.dev
Website jam-software.de keylight.dev
Pricing —
Open source Freemium $19 / Monthly (Up to 2000 licenses active.) Official pricing
Platforms —
Web
Company — Startup from Belgium · 1 - 9 employees · 2026
Listed in
OS & Utilities Disk Analyzer Hard Disk Usage Security & Privacy +1
Developer Tools Software Development License Management Productivity Tech Web App Tool +4

About TreeSize and Keylight.dev

In their own words, as submitted to SaaSHub.

TreeSize
Keylight.dev

No description of TreeSize 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.

Read more about Keylight.dev

Features and specs

What each product offers, as listed by its team.

TreeSize 5 features
Keylight.dev 16 features
  • User-Friendly Interface
    TreeSize Free has a clean and intuitive interface that makes it easy for users to navigate and find the information they need. The software presents data in a clear and organized manner, facilitating quick understanding and decision-making.
  • Detailed Disk Space Analysis
    TreeSize Free provides a comprehensive analysis of disk space usage, offering insights into which directories and files are occupying the most space. This helps users optimize their storage and free up space more effectively.
  • Export Functionality
    The software allows users to export reports in various formats such as XML, XLS, CSV, and TXT. This feature is particularly useful for creating backups, sharing information, or further analyzing the data with other tools.
  • Fast Scanning
    TreeSize Free is known for its fast scanning capabilities, allowing users to quickly analyze large volumes of data without significant delays.
  • Customizable Views
    The software offers various views (e.g., tree view, treemap) to visualize disk space usage, making it versatile for different user preferences and requirements.

Possible disadvantages

  • Limited Features in Free Version
    While TreeSize Free offers basic functionality, some advanced features (such as detailed file reports and automation options) are only available in the Professional version, which requires a paid license.
  • Windows-Only
    TreeSize Free is only available for Windows operating systems. Users of macOS or Linux will need to look for alternative software to analyze disk space on those platforms.
  • No Real-Time Monitoring
    The software does not offer real-time monitoring of disk space changes, which means users need to rescan directories to view updated information about disk usage.
  • Complexity with Network Drives
    TreeSize Free can experience slower performance and complexity when scanning network drives as opposed to local drives. This can be a limitation for users who need to manage networked storage extensively.
  • 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.

Analysis

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

TreeSize
Keylight.dev

Overall verdict

  • TreeSize is considered a good tool for managing disk space. Its reliability, range of features, and ease of use make it a strong choice for anyone looking to optimize their storage usage.

Why this product is good

  • TreeSize by JAM Software is popular because it provides a detailed and intuitive analysis of disk space usage. It helps users identify large files and folders, visualize disk space distribution, and manage storage efficiently. The user-friendly interface and powerful, customizable reporting and filter options make it a valuable tool for both personal and professional use.

Recommended for

    TreeSize is recommended for system administrators, IT professionals, and everyday users who need an efficient way to track and manage disk space usage. It is particularly useful for those managing multiple drives or looking to perform detailed storage audits.

Overall verdict

  • I don't have verified, up-to-date information about Keylight.dev specifically, so I can't confirm its quality, features, or reliability. It may be a newer or niche tool that isn't well-documented in my training data. I'd recommend checking recent user reviews, the official website's documentation, and community forums (like GitHub, Reddit, or Twitter) for firsthand feedback before making a decision.

Why this product is good

  • Unable to verify specific features, pricing, or performance claims for this product
  • No confirmed user reviews or independent testing data available
  • Cannot confirm company legitimacy, support quality, or security practices without direct verification

Recommended for

  • Users willing to conduct their own due diligence by visiting the official site directly
  • Developers who can test the product via a free trial or demo before committing
  • Anyone who checks third-party review sites, GitHub issues, or community discussions for real user experiences

Videos

Walkthroughs and reviews on video.

TreeSize 3 videos + Add
Keylight.dev 0 videos + Add

How to Easily Free Disk Space with Treesize (or similar)

More videos

  • - TreeSize Professional - Getting Started (English Version)
  • - TreeSize Professional - Overview (English Version)

No Keylight.dev videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
TreeSize
Keylight.dev
100% 100%
Disk Analyzer
0% 0%
0% 0%
Tool
100% 100%
100% 100%
OS & Utilities
0% 0%
0% 0%
Productivity
100% 100%

Questions & Answers

As answered by people managing TreeSize and Keylight.dev.

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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

What's the story behind your product?

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.

Who are some of the biggest customers of your product?

Keylight.dev's answer:

That's confidential.

Which are the primary technologies used for building your product?

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

User comments

Share your experience with using TreeSize and Keylight.dev. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

TreeSize no reviews yet
Keylight.dev 5.0 · 1 review

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

TreeSize 0 mentions
Keylight.dev 4 mentions

Tracking TreeSize since Mar 2021.

  • How offline license activation actually works
    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
  • I compared the licensing tools for my indie Mac app — the honest breakdown
    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
  • How to add license keys to a SwiftUI macOS app (in under an hour)
    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

View more

Alternatives to TreeSize and Keylight.dev

When comparing TreeSize and Keylight.dev, you can also consider the following products.

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