No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- Notifly
A hosted API for product teams to send app notifications over email, SMS, push, chat and an in app inbox.
Since 2020
Free plan · Transactional email · Developers
- Dittofeed
Sends automated email, SMS, push and WhatsApp messages using user segments and a visual journey builder, and can be embedded in your app.
Subscription · Email marketing · Health and clinics
- AIR Blackbox
Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.
Since 2026
Free plan · Developer tools · Developers
- SuprSend
One API and dashboard for sending product notifications by email, SMS, push, Slack and in-app inbox.
Since 2022
Subscription · Transactional email · Developers
- Novu
One API and an in-app inbox component that let software teams send notifications by email, SMS, push, chat and in-app.
Transactional email · Developers
- DBLift
Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.
Since 2026
Free plan · Developer tools · Developers
- Lumbox
Gives each AI agent a real email address, and soon a phone number, so it can read mail, reply and use login codes.
Since 2026
Free plan · Developer tools · Developers
- Overcast
Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.
Since 2026
Developer tools · Developers
- Vero
Lets SaaS teams message users by email, push or SMS when they take certain actions inside the product.
Since 2021
Subscription · Email marketing · Software companies