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Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...

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Cattr is a free open-source self-hosted time tracker with desktop clients for windows, mac, linux.

Which is more popular?
Based on our record, Apache Solr should be more popular than Cattr. It has been mentioned 19 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | solr.apache.org | cattr.app |
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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
Apache Solr is recommended for organizations that need to implement powerful search capabilities, especially those managing large, complex datasets. It is ideal for businesses that require full-text search features, e-commerce sites, content management systems, and big data applications that demand high query performance and scalability.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Solr Index - Learn about Inverted Indexes and Apache Solr Indexing
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How often each product is chosen within a category, 0–100% relative to the other.


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


Apache Solr is optimized to handle high-volume traffic and is easy to scale up or down depending on your changing needs. The near real-time indexing capabilities ensure that your content remains fresh and search...
Apache Solr is the popular, blazing-fast, open-source enterprise search platform built on Apache Lucene. Solr is a standalone search server with a REST-like API. You can put documents in it (called "indexing") via...
Solr is not as quick as Elasticsearch and works best for static data (that does not require frequent changing). The reason is due to caches. In Solr, the caches are global, which means that, when even the slightest...
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Recommendations tracked on public social media and blogs since March 2021.


Solr — Open-source search platform built on Apache Lucene. - Source: dev.to / over 2 years ago
I want to spend the brunt of this article talking about how to do this in Postgres, partly because it's a little more difficult there. But let me start in Apache Solr, which is where I first worked on these issues. - Source: dev.to / over 2 years ago
Using the Galaxy UI, knowledge workers can systematically review the best results from all configured services including Apache Solr, ChatGPT, Elastic, OpenSearch, PostgreSQL, Google BigQuery, plus generic HTTP/GET/POST with... - Source: dev.to / about 3 years ago
Cattr is a self-hosted time tracker. Helpful if you find yourself on multiple devices, even if you are the only one using it. Source: over 3 years ago
Cattr, Youtrack, Activity watch - this is my search for an application to manage my projects and track the time spent on them. The closest thing to the ideal is the online service Trackabi. Youtrack is too fancy, more like Jira. Cattr... Source: over 5 years ago
When comparing Apache Solr and Cattr, you can also consider the following products.

Elasticsearch is an open source, distributed, RESTful search engine.
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Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
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Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
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Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.
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The simplest way to add search to your website or application. Sign up for free.
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Track your computer usage and use collected data to accurately tag time.
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