Software Alternatives, Accelerators & Startups

PubNub VS MSG91

Compare PubNub VS MSG91 and see what are their differences

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PubNub logo PubNub

PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

MSG91 logo MSG91

MSG91 is an enterprise SMS solution provider that comes to elevate the standard of express SMS services through the worldโ€™s best panel and robust mechanism.
  • PubNub Landing page
    Landing page //
    2023-10-05
  • MSG91 Landing page
    Landing page //
    2025-12-25

PubNub features and specs

  • Real-time Messaging
    PubNub provides real-time messaging capabilities, allowing for efficient, low-latency communication between clients and servers. This is ideal for applications that require instant data updates, such as chat apps, live dashboards, and multiplayer games.
  • Global Infrastructure
    The service operates on a global network of data centers, ensuring that messages are delivered quickly and reliably across different geographic locations. This reduces latency and enhances the performance and user experience of apps that serve a global user base.
  • Scalability
    PubNub can handle millions of messages and connections simultaneously, making it highly scalable for applications with substantial user bases or high traffic requirements.
  • Security
    PubNub offers a range of security features including TLS encryption, token-based authentication, and access management to ensure that data is securely transmitted and received.
  • Extensive SDKs
    The platform provides extensive SDKs (Software Development Kits) for a wide variety of programming languages and platforms, making it easier for developers to integrate PubNub into their applications.
  • Feature-rich
    Besides messaging, PubNub offers additional features like presence, storage and playback, message history, and mobile push notifications, which add significant value to developers.
  • Reliability
    With multiple layers of failover and redundancy, PubNub is designed to deliver high availability and uptime, which is critical for mission-critical applications.

Possible disadvantages of PubNub

  • Cost
    PubNub can be expensive for large scale applications or startups with limited budgets. The pricing model is based on usage, making it difficult to predict costs for applications that experience rapid growth or variable traffic.
  • Complexity
    The platform offers a rich set of features, which can make it complex for new developers to fully understand and implement. The learning curve can be steep, particularly for those who are unfamiliar with real-time messaging systems.
  • Vendor Lock-In
    Relying heavily on PubNub's infrastructure and APIs means that migrating to another service can be challenging and time-consuming. This can create a dependency that might be problematic if you ever need to switch providers.
  • Latency Variability
    While PubNub generally offers low-latency performance, there can be variability in latency due to network conditions or other factors, which might affect time-sensitive applications.
  • Limited Customization
    Although PubNub offers many features, there can be limitations in terms of customizing certain functionalities or integrating with specific business requirements that are not directly supported by the platform.
  • Documentation
    While PubNub provides comprehensive documentation, some users report that it can be inconsistent or lacking in certain areas, making it difficult to troubleshoot specific issues or fully utilize advanced features without additional support.
  • Dependency on Internet
    As a cloud-based service, PubNub relies on a stable internet connection. Applications that need to function in environments with unreliable or no internet connectivity may face challenges using this service.

MSG91 features and specs

  • Scalability
    MSG91 can handle large volumes of messages, making it suitable for businesses of various sizes, from startups to enterprise-level operations.
  • Global Reach
    It offers a global messaging solution, allowing businesses to send messages to audiences worldwide with robust international coverage.
  • API Integration
    MSG91 provides easy-to-use APIs that can be integrated into various platforms, offering flexibility for developers who need to incorporate messaging into their applications.
  • Delivery Reports
    The platform provides detailed delivery reports, enabling businesses to track message delivery status and ensure effective communication.
  • Multi-channel support
    MSG91 allows sending of messages via different channels such as SMS, email, and voice, offering various methods of communication based on user preferences.

Possible disadvantages of MSG91

  • Cost
    For small businesses or individuals with limited budgets, the cost of using MSG91 for high volumes of messaging might be a concern compared to other platforms.
  • Interface Complexity
    New users might find the interface overwhelming due to the numerous features and options available, which may require a learning curve.
  • Regional Limitations
    While it has global reach, there might be restrictions or limited support in certain countries, which could affect delivery reliability.
  • Support Response Time
    Some users have reported slower response times from customer support, which might be an issue for businesses needing immediate assistance.

Analysis of MSG91

Overall verdict

  • MSG91 is a reliable and well-established cloud communication platform (CPaaS) offering SMS, email, voice, WhatsApp, and OTP verification services with solid API support, competitive pricing, and strong deliverability, making it a good choice especially for businesses operating in India and other emerging markets.

Why this product is good

  • Comprehensive multi-channel communication APIs including SMS, email, voice, WhatsApp Business, and OTP authentication
  • Developer-friendly with well-documented REST APIs, SDKs, and easy integration options
  • Strong OTP and transactional SMS delivery rates with high reliability
  • Competitive and transparent pricing suitable for startups and enterprises alike
  • Good customer support and dashboard analytics for tracking campaigns and delivery
  • Established presence and trust, particularly strong in the Indian market with DLT compliance support

Recommended for

  • Businesses in India needing DLT-compliant transactional and promotional SMS
  • Startups and developers looking for easy-to-integrate communication APIs
  • E-commerce and fintech companies requiring OTP and two-factor authentication
  • Companies wanting a unified multi-channel messaging platform (SMS, email, WhatsApp, voice)
  • Enterprises seeking bulk messaging and automated notification systems

PubNub videos

Realtime Bike Tracking App with MediaTek and PubNub

More videos:

  • Review - Streaming Realtime Analytics with Keen IO and PubNub
  • Review - PubNub IOT House Training Video

MSG91 videos

MSG91 - Smart Messaging Service

Category Popularity

0-100% (relative to PubNub and MSG91)
Mobile Push Messaging
100 100%
0% 0
Communication
32 32%
68% 68
Realtime Backend / API
100 100%
0% 0
SMS Marketing
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare PubNub and MSG91

PubNub Reviews

5 Best CometChat Alternatives, Competitors & Pricing
Pubnub is simply a techieโ€™s choice! When you compare it with Cometchat, youโ€™ll find that it does not just have regular chat and call options. Itโ€™s got better with live streaming capabilities and IoT, making it a perfect option to build multi-user apps and gaming apps.
2023 Firebase Alternatives: Top 10 Open-Source & Free
PubNub is another new but advanced Firebase alternative in our list. It handles 3 trillion monthly calls with 99.999% uptime and accesses 800 million devices over the globe. The renowned customers of PubNub are Kustomer, vFairs and Swiggy.
SignalR Alternatives
Pubnub is considered one of the good alternatives to SignalR because it comes to the rescue when secured data streams get exchanged over the network with API that helps in connecting with the applications to the real-time one.
Source: www.educba.com
Firebase Alternatives โ€“ Top 10 Competitors
Pubnub IoT Device Control Real-time updates Storage & Playback Stream Controller Push Notifications Analytics Access Management
Top 10 Alternatives To Firebase
PubNub is popular for its versatile streaming abilities. You can create promising web and mobile apps with PubNub.
Source: www.redbytes.in

MSG91 Reviews

  1. Julie R Fagan
    ยท Senior Manager, Retail Operations at Bloom & Thread Home Decor ยท
    Reliable messaging platform with easy integration

    MSG91 has been a dependable platform for sending OTPs and transactional notifications. The setup process was simple, and the API integration worked smoothly with our system. Delivery rates have been consistent, and messages usually reach customers quickly.

    The dashboard is easy to use and helps track message performance. Overall, MSG91 helped us automate communication and improve customer engagement.

    ๐Ÿ‘ Pros:    Reliable otp delivery|Easy api integration|Fast message delivery|Clean and simple dashboard
    ๐Ÿ‘Ž Cons:    Pricing could be clearer|More templates would be helpful

Social recommendations and mentions

Based on our record, PubNub seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

PubNub mentions (1)

  • gRPC test-and-try with Akka Serverless and Evans
    I first learned about gRPC about five years go. Since that moment in time when an engineer at PubNub introduced me to the framework, I have let the idea of gRPC simmer more in the background, especially since I was already rather steeped in REST, Open API, Swagger, and other sundries seen in the broader API space (miss you, Mashery. There seemed to be plenty of great tooling, documentation and technologies... - Source: dev.to / over 4 years ago

MSG91 mentions (0)

We have not tracked any mentions of MSG91 yet. Tracking of MSG91 recommendations started around Mar 2021.

What are some alternatives?

When comparing PubNub and MSG91, you can also consider the following products

Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

SendHub - Get a business phone system on your smartphone and computer. We provide professional, affordable sms, text, and voice solutions in an easy to use system. 14-day free trial.

StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.

Mobiniti - Mobiniti offers a mobile marketing platform for clients to invite customers to engage with their brand through SMS via their mobile phone.

Histats - Start tracking your visitors in 1 minute!

Pyze - Pyze utilizes machine learning to understand user behavior and automate user engagement so...