Top 12 Open-Source Alternatives to Knock App

Product categories

AI API Tools APIs App Development Developer Tools Messaging Mobile Push Messaging Notifications And Alerting Productivity Push Notifications User Engagement Web Push Notifications

Summary

The top open-source alternatives to Knock App are SuprSend, Truepush, and Pusher. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

SuprSend Landing Page
1

SuprSend

Single Notification API for Every Channel (SMS, Slack, Whatsapp, Email, SMS, Push, App Inbox)
Pricing:
- Open Source
- Freemium
- Free Trial
- $99.0 / Monthly
#Notifications And Alerting #Developer Tools #Communication 1 user reviews
Truepush Landing Page
2

Truepush

Unleash limitless possibilities with Truepush and save up to $600 monthly. Free up to 10K Subscribers on all features.
Pricing:
- Open Source
- Free
- Free Trial
#Web Push Notifications #Group Chat & Notifications #Mobile Push Messaging
Pusher Landing Page
3

Pusher

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.
Pricing:
- Open Source
#Mobile Push Messaging #Developer Tools #App Development 50 social mentions
Novu Landing Page
4

Novu

The ultimate library for managing multi-channel transactional notifications with a single API.
Pricing:
- Open Source
#Developer Tools #Notifications And Alerting #APIs 12 social mentions
OneSignal Landing Page
5

OneSignal

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Pricing:
- Open Source
- Freemium
- Free Trial
- $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )
#Mobile Push Messaging #Web Push Notifications #Push Notifications 25 social mentions
Engagespot Landing Page
6

Engagespot

Engagespot is the easiest way to build your product's multi-channel notification infrastructure. Deliver In-App, Email, Push, SMS, WhatsApp and chat notifications from your app to your users with a single API.
Pricing:
- Open Source
- Freemium
- Free Trial
- $89.0 / Monthly
#User Engagement #Push Notifications #Developer Tools 5 social mentions
Cal.com Landing Page
7

Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
Pricing:
- Open Source
#APIs #Open Source #Calendar And Scheduling 53 social mentions
Socket.io Landing Page
8

Socket.io

Realtime application framework (Node.JS server)
Pricing:
- Open Source
#Developer Tools #App Development #Mobile Push Messaging 718 social mentions
Bearer Landing Page
9

Bearer

Bearer is an open source, fast and accurate static application security testing (SAST) tool that analyze your source code to discover, filter and prioritize security and privacy risks.
Pricing:
- Open Source
- Freemium
- Free Trial
#Code Analysis #Security & Privacy #Security
Canonic Landing Page
10

Canonic

Build full-stack applications without code
Pricing:
- Open Source
- Freemium
- Free Trial
- $28.0 / Monthly
#Developer Tools #Low Code #No Code 6 social mentions
Flagsmith Landing Page
11

Flagsmith

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Pricing:
- Open Source
- Freemium
- Free Trial
#Feature Flags #Developer Tools #Configuration Management 13 social mentions
OpenAI Landing Page
12

OpenAI

GPT-3 access without the wait
Pricing:
- Open Source
#Productivity #Developer Tools #IDE 302 social mentions