
Firebase
PouchDB
GUN
SignalDB
Supabase
FeathersJS
Realm.io
A fast, offline-first, reactive Database for JavaScript Applications

Which is more popular?
Based on our record, RxDB seems to be more popular. It has been mentioned 14 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | rxdb.info | tryprofound.com |
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| Company | 2016 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


RxDB, which stands for Reactive Database, is a JavaScript-based NoSQL database designed for a wide range of applications such as websites, hybrid apps, Electron apps, progressive web apps, and Node.js. The "reactive" aspect of RxDB allows you not only to retrieve the current state of the database...
No description of Profound yet.
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 RxDB yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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Profound Tutorial & Review For Beginners 2026
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using RxDB and Profound. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Reactive Database or RxDB is a real-time NoSQL database for JavaScript apps such as progressive web apps, electron apps, PWAs, hybrid apps, and websites. Reactive means that you get to query the current state while...
Profound offers a free 7-day trial with 50 daily prompts on ChatGPT, Gemini and AI Overviews. After that it's Enterprise only, priced on a demo call, with up to 9 engines.
Say they read the public interface: Miraqo, SE Ranking, Otterly.AI, Peec AI (logged out; its add-on models run through APIs) and Profound. Semrush says its answers are "captured from real requests and not via any APIs...
Profound gives a useful way to understand how brands appear across AI search and generative platforms. The platform helps surface visibility patterns, competitor presence, and broader shifts in how AI systems...
Recommendations tracked on public social media and blogs since March 2021.


I’m doing offline-first apps at work and want to emphasize that you’re constraining yourself a lot trying to do this. As mentioned, everything fast(ish) is using SQLite under the hood. If you don’t already know, SQLite has a... - Source: Hacker News / about 1 year ago
> I'm thinking to give it a try in one of my React Native apps that face very uncertain connectivity. Some similar stuff you may want to investigate (no real opinion, just sharing since I've investigated this space a bit): -... - Source: Hacker News / over 1 year ago
Looks like it could be a more batteries-included/opinionated alternative to RxDB (https://rxdb.info). The relational queries might help some people who tend to think in SQL as opposed to documents (as in CouchDB or MongoDB) and the... - Source: Hacker News / over 2 years ago
Tracking Profound since Feb 2026.
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