Dev tools · alternatives · 2026
24 alternatives to Castled Data – Customer engagement software on top of data warehouses
Hi HN, We're Frank, Abhilash, and Arun from Castled Data(https://castled.io). Castled is a Customer Engagement platform built directly on top of cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. In essence, Castled is identical to Braze and Iterable with a crucial difference - we don't keep a copy of your customer data. Instead, we enable marketers to create audiences directly on their cloud data warehouse and engage them across channels like Email, Sms, WhatsApp, Push, and In-app notifications - no SQL knowledge, no engineering favours required. Here is a…
Castled Data is a customer engagement platform that works directly within cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. It lets marketers build audience segments and send campaigns across… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Castled Data – Customer engagement software on top of data warehouses launched in 2023; newer entries below may have overtaken it.
- 1CM
Hi HN! We are excited to share something we have been building for the last 12 months. Castled is a warehouse-native marketing platform built directly on cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. Castled allows you to directly use the customer data in your data warehouse and engage them across different channels like Email, Sms, WhatsApp, push, and In-app - without having to copy the data to another tool. We started our journey by building an open-source Reverse ETL solution to make the warehouse data actionable to marketers. However, after talking to 100s of…
2023 · castled.io · its alternatives →
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Build audiences that matter, instantly
2024 · dreamdata.io · its alternatives →
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Customer.io▲358Send email based on what people do (or don't do) in your app
2014 · customer.io · its alternatives →
- 7
The 1-click data onboarding platform for SaaS
2021 · flatfile.com · its alternatives →
- 8
Teable 2.0▲473The AI database agent that transforms data into action
2025 · teable.ai · its alternatives →
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Get 100+ Customers in a Week, Turn 1000+ Comments into Sales
2024 · opencord.ai · its alternatives →
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DitLead▲232Cold Email, Linkedin and Cold Call Outreach Automation
2025 · ditlead.com · its alternatives →
- 13
Turn visitors into customers with data driven conversation
2018 · dashly.io · its alternatives →
- 14
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I built a SQLite VFS in Rust that serves cold queries directly from S3 with sub-second performance, and often much faster. It’s called turbolite. It is experimental, buggy, and may corrupt data. I would not trust it with anything important yet. I wanted to explore whether object storage has gotten fast enough to support embedded databases over cloud storage. Filesystems reward tiny random reads and in-place mutation. S3 rewards fewer requests, bigger transfers, immutable objects, and aggressively parallel operations where bandwidth is often the real constraint. This was explicitly inspired…
Mar 2026 · github.com · its alternatives →
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How the best B2B marketers use data to grow faster
2018 · clearbit.com · its alternatives →
- 18
Platformly▲257Marketing automation software for SaaS and Ecommerce
2019 · platformly.com · its alternatives →
- 19
Twilio Engage▲123Build hyper-personalized end-to-end marketing campaigns
2021 · twilio.com · its alternatives →
- 20
Hey HN, we are sharing again, after a year of updates! Laudspeaker (https://laudspeaker.com/) is an open source customer engagement suite (also called marketing automation software). If you've used tools like Braze, One Signal, Airship, Iterable, Customer.io or some others, Laudspeaker is an alternative to these. Here is a quick demo: https://www.loom.com/share/4b309390ee274ea491981e1394e9abc4. And here is a link to sign up and try free (no cc needed): https://app.laudspeaker.com/signup. Or if you prefer to just jump in, go to…
2024 · github.com · its alternatives →
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Herdd▲87An event-based social media app. Plan events and chat.
2021 · apps.apple.com · its alternatives →
- 23
Sherlock 2.0▲118Powerful user engagement scoring for SaaS businesses.
2018 · accoil.com · its alternatives →
- 24
Dittofeed▲96Open-source customer engagement platform for devs
2023 · dittofeed.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →