VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

StatSync
Voluum
BeMob
AdsBridge
RedTrack.io
Keitaro TDS
Binom
Affiliate tracking at $9.99/month. Click tracking, postbacks, ROI reporting, and an offer marketplace. Everything included. No event limits. No feature tiers. Built for performance marketers.
Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
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EJS
Eloquent JavaScript
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|---|---|---|
| Website | eloquentjavascript.net | trykasumi.com |
| Pricing | ||
| Company | — | Startup from the Philippines · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Eloquent JavaScript yet.
Kasumi is an affiliate tracking platform designed for media buyers, affiliate managers, and performance networks. Track clicks and conversions in real time with built-in postback management, fraud filtering, and multi-touch attribution models. Access a native offer marketplace to discover and...
What each product offers, as listed by its team.

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

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
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Walkthroughs and reviews on video.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
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How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and Kasumi.
Kasumi's answer:
Built-in offer marketplace where affiliates can discover offers ranked by real cross-affiliate earnings. Flat $9.99/month pricing with no per-event metering or feature tiers. Everything is included from day one. Real-time conversion pipeline visibility shows earned, pending, and paid conversions automatically. No other affiliate tracker has the marketplace built in.
Kasumi's answer:
Cost. Competitors charge per event, which scales fast with volume. Kasumi is flat rate. One customer moved from event-based billing and saw a 90% cost reduction. You get full features without upgrades. Setup is fast. Postbacks take minutes, not days. The marketplace alone saves time and brings in new affiliates.
Kasumi's answer:
Built for performance teams frustrated with expensive, bloated affiliate trackers. Kasumi strips out the excess and delivers core tracking functionality. Clicks, postbacks, attribution, reporting, fraud filtering. All at a price that makes sense. The built-in offer marketplace came from seeing affiliates waste time finding good offers.
Kasumi's answer:
Performance marketers, media buyers, and affiliate managers running campaigns at scale. Networks and affiliate managers managing multiple offers and partners. Anyone tracking conversions who wants predictable costs instead of surprise overages from per-event billing.
Kasumi's answer:
Not publicly disclosed on the website.
Share your experience with using Eloquent JavaScript and Kasumi. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / about 1 year ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
Tracking Kasumi since Jun 2026.
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