
Raindrop.io
Instapaper
Matter
My Mind
Obsidian
Notion
Glasp
Effortlessly rediscover and organize your Kindle highlights

ZeroFOX
Katcher
DoppelDown
AgentProxy.au
PhishEye
Red Points
Bustem
By pairing cutting-edge AI with expert analysis, we outpace threats like phishing, impersonation, and disinformation—delivering comprehensive coverage, speed, and precision.

Which is more popular?
Based on our record, Readwise seems to be more popular. It has been mentioned 88 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | readwise.io | doppel.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from the United States · 250 - 499 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Readwise yet.
Our AI-native platform unifies threat intelligence, automates takedowns, simulates attacks, and trains employees against today’s most sophisticated multi-channel deception campaigns.
What each product offers, as listed by its team.


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
Recommended for
Walkthroughs and reviews on video.
Readwise: How to use Spaced Repetition with your books
More videos
Doppel: Outpacing What’s Next in Social Engineering
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Readwise and Doppel.com.
Doppel.com's answer:
AI-native platform unifies threat intelligence, automates takedowns, simulates attacks, and trains employees against today’s most sophisticated multi-channel deception campaigns.
Share your experience with using Readwise and Doppel.com. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


I imported my kindle highlights, as many others. Now I daily review some highlights (thanks to a dashboard, I am motivated). And where I didn't create highlights, as I only listened to the audiobooks, I get the...
We have no reviews of Doppel.com yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Anyway, as I reached the end of the chapter, I wanted to read my Readwise's daily recap. However, my iPhone was in other room. I didn’t want to get up; I was tired. - Source: dev.to / 5 months ago
The only highlights that Readwise retrieves semi-automatically are from the books I buy from Kindle, by going into the Readwise app and clicking a button. If I upload them to Kindle or need highlights from the Apple Books app, I have to... - Source: dev.to / almost 2 years ago
Readwise also has this feature. I get a daily email with a random assortment of highlights that have been pulled in from multiple sources (Reader, Notion, Kindle, etc.) The product benefit in their case is that it's kind of like Zapier,... - Source: Hacker News / almost 2 years ago
Tracking Doppel.com since Jan 2026.
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