Software Alternatives, Accelerators & Startups

Ably VS SEMRush

Compare Ably VS SEMRush and see what are their differences

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Ably logo Ably

The realtime platform that just works. We power more WebSocket connections than any other pub/sub platform, serving over 2 billion devices monthly.

SEMRush logo SEMRush

All-in-one Marketing Toolkit for digital marketing professionals.
  • Ably Ably homepage
    Ably homepage //
    2024-08-05

We help teams deliver resilient AI UX and high-performance live experiences that stay fast and in sync worldwide. We provide the global realtime layer for AI agents, chat, notifications, live dashboards, and collaboration - engineered to handle peak demand without self-managed infrastructure.

Teams like HubSpot and Intercom use Ably to avoid the cost and complexity of building and operating realtime systems, while still getting predictable performance at serious scale, handling 2T+ API operations per month. Ablyโ€™s Pub/Sub, Chat, and AI Transport products are unified by design, with developer-friendly APIs and SDKs that integrate across your stack.

  • SEMRush Landing page
    Landing page //
    2024-08-24

Ably

Website
ably.com
$ Details
freemium
Release Date
2016 January
Startup details
Country
United Kingdom
Founder(s)
Matthew O'Riordan, Dr. Paddy Byers
Employees
50 - 99

Ably features and specs

  • Scalability
    Ably is designed to handle a massive number of concurrent connections and messages, making it scalable for both small and large applications.
  • Real-time Messaging
    Ably provides robust real-time messaging capabilities with low latency, supporting use-cases like live chat, gaming, and real-time data streaming.
  • Global Presence
    Ably has a globally distributed network, ensuring low latency and high availability for users around the world.
  • Advanced Features
    It offers advanced features such as message history, presence, and push notifications, which can enhance the functionality of real-time applications.
  • Security
    Ably includes built-in security features such as TLS encryption, token-based authentication, and private channels to ensure secure communication.
  • Extensive Documentation
    The service provides extensive and well-organized documentation, making it easier for developers to integrate and utilize its features.
  • SDKs and Libraries
    Ably offers a wide range of SDKs and libraries for different programming languages and platforms, easing the development process.
  • Reliable Delivery
    It ensures reliable message delivery with features like message queuing and message de-duplication.

Possible disadvantages of Ably

  • Complexity
    Due to its wide range of advanced features, the initial learning curve can be steep for new users.
  • Cost
    For large-scale applications or extensive use of advanced features, the costs can add up, making it potentially expensive.
  • Vendor Lock-in
    Relying heavily on Ablyโ€™s platform-specific features may result in vendor lock-in, making it challenging to switch to other services in the future.
  • Dependence on Internet Connection
    As a cloud-based service, Ablyโ€™s performance is highly dependent on the quality and reliability of the internet connection.
  • Third-party Integration
    While Ably offers various integration options, integrating certain third-party services may require additional custom development or may not be as seamless.

SEMRush features and specs

  • Comprehensive SEO Toolkit
    SEMRush provides a wide range of tools for keyword research, competitive analysis, backlink analysis, site audit, and more, making it a one-stop-shop for all SEO needs.
  • Accurate Data
    Known for providing accurate and updated data which is crucial for making informed SEO decisions.
  • Competitive Analysis
    Offers extensive competitor analysis features, helping businesses understand their competitors' strategies and improve their own.
  • In-depth Reports
    Creates detailed reports that offer valuable insights into performance metrics and areas for improvement.
  • User-friendly Interface
    The platform is designed with a user-friendly interface, making it accessible even for beginners in SEO.
  • Wide Range of Services
    SEMrush Content Marketplace offers a variety of content services including blog posts, articles, infographics, and product descriptions, catering to diverse content needs.
  • Quality Assurance
    Each piece of content is vetted by a team of editors to ensure high quality and adherence to customer requirements.
  • SEO-Driven Content
    Content provided is optimized for SEO, utilizing SEMrush's data and insights to improve search engine rankings.
  • Time Efficiency
    The platform streamlines the content creation process, allowing clients to save time on finding and managing freelance writers.
  • Transparent Pricing
    SEMrush provides clear pricing structures for different types of content, helping businesses budget effectively.

Possible disadvantages of SEMRush

  • Pricing
    SEMRush pricing can be relatively high, especially for small businesses and freelancers.
  • Learning Curve
    Despite being user-friendly, the sheer depth of features can present a steep learning curve for new users.
  • Data Limits
    Certain features and data exports are limited based on the subscription plan, which can be restrictive for high-volume users.
  • Customer Support
    While customer support is generally good, some users have reported slow response times during peak periods.
  • Occasional Inconsistencies
    Some users have reported occasional inconsistencies in search volume and backlink data.
  • Cost
    The services can be expensive for small businesses or startups with limited budgets compared to hiring freelancers directly on other platforms.
  • Limited Revisions
    There may be restrictions on the number of revisions allowed, potentially leading to additional costs if further changes are needed.
  • Potential for Generic Content
    Despite quality checks, there is a risk that the content may not always be highly customized or deeply engaging without extensive input from the client.
  • Less Control
    Clients might have less control over the selection of individual writers, which could impact the personal touch or specific voice they desire.
  • Dependence on Platform
    Relying heavily on the marketplace could limit a business's development of their internal content creation skills.

Analysis of Ably

Overall verdict

  • Ably is a reliable and efficient real-time messaging platform, well-suited for applications requiring high performance and scalability. It is generally well-regarded within the developer community for its ease of use and robust feature set.

Why this product is good

  • Features
    Ably provides a comprehensive suite of features such as pub/sub messaging, presence, and history.
  • Security
    It implements robust security practices including TLS encryption, token-based authentication, and private channels.
  • Integration
    Supports numerous protocols and provides SDKs for various programming languages, making it easy to integrate with different systems.
  • Reliability
    Ably offers high availability and low latency, ensuring messages are delivered in real-time.
  • Scalability
    The platform can handle millions of active connections and is designed for horizontal scaling.

Recommended for

  • developers building real-time applications like chat apps, dashboards, or multiplayer games
  • businesses in need of a scalable solution for live updates and notifications
  • teams looking for a platform with strong security and compliance credentials
  • organizations requiring integration with existing development workflows and tools

Analysis of SEMRush

Overall verdict

  • SEMRush is considered an excellent tool for digital marketers due to its wide range of features and reliable data. It is especially beneficial for businesses and marketers who want to enhance their SEO strategies and gain a competitive edge in the digital space. While it can be on the pricier side, the value it provides in terms of actionable insights and enhanced marketing strategies justifies the investment for many users.

Why this product is good

  • SEMRush is a comprehensive digital marketing tool that is highly regarded for its robust features designed to improve online visibility and optimize content marketing strategies. It offers extensive SEO tools, including keyword research, site auditing, competitor analysis, and backlink tracking. Additionally, SEMRush provides tools for PPC campaigns, social media monitoring, and content optimization. Its user-friendly interface and detailed analytics make it a favorite among digital marketers seeking data-driven insights to boost their online performance.

Recommended for

    SEMRush is particularly recommended for SEO specialists, digital marketing agencies, content marketers, and businesses of all sizes who are serious about improving their search engine rankings and digital marketing strategies. It is also suitable for PPC managers and social media strategists who need comprehensive tools for campaign analysis and tracking.

Ably videos

How to build a collaborative environment around your product

More videos:

  • Demo - How to build an avatar stack with Ably Spaces
  • Demo - Ably 101: Serverless WebSockets at scale

SEMRush videos

First Look: SEMrush Content Marketplace Review

More videos:

  • Tutorial - SEMRush Review 2020 โ˜‘๏ธ Best Keyword Research Tool in 2020? ๐Ÿ˜ฑ SEMRush Tutorial
  • Tutorial - SEMRush Review 2019 and Full SEMRush Tutorial on How to Use SEMRush
  • Tutorial - SEMRush Review and Tutorial: How Good Is It Really?

Category Popularity

0-100% (relative to Ably and SEMRush)
Developer Tools
100 100%
0% 0
SEO Tools
0 0%
100% 100
Realtime Backend / API
100 100%
0% 0
SEO
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 Ably and SEMRush

Ably Reviews

We have no reviews of Ably yet.
Be the first one to post

SEMRush Reviews

  1. fraserstewart
    ยท CCO at Lyfeguard ยท
    Fantastic platform but introduce a โ€˜starter tierโ€™

    Canโ€™t knock the platform - itโ€™s great. I feel like they should have a paid-for offering at a lower price point, however. Strongly recommend!

  2. Mohit Gupta
    ยท Small Business Owner at SmokeHub ยท
    Easy to use with limited trail but prices are high expensive - Semrush

    Semrush is very popular and next level performance tool which varies competitors, analyzes and tracking of any domain website, which provides you full information what's the position of the website, overall traffic, etc. This tool is easy to use with limited trial 7 days, after the trial ends, has limited features work on free plan. There plans are very expensive, not affordable at purchasing price plans.

    In my experience, semrush is very costly and high level of experience.

    ๐Ÿ Competitors: Ahrefs, Moz, SE Ranking, Marketing Miner
    ๐Ÿ‘ Pros:    Real-time analytics|Excellent features|Simple yet powerful and efficient tool
    ๐Ÿ‘Ž Cons:    Pricing is too high|Limited features with free plan.
  3. Dorian Leone
    ยท Webmaster at Competitive Insight ยท
    Great keyword tracking platform, shame they removed the display advertising report

    SEMrush provides a great central hub for adding your websites as projects which can be tracked, audited and measured for visibility over time. I've used the platform across many roles and found the only recent drawback was the removal of their display advertising competitor reports.

    ๐Ÿ Competitors: Serpstat

Best AI SEO Tools for Keyword Research in 2026
Semrush provides a broad feature set. Use it for competitor analysis and site health. The Copilot feature gives recommendations based on your specific site data. It assists teams managing several projects at once and a natural companion to a solid SEO toolkit.
Source: clusterview.ai
Keyword Research for Affiliate Marketing: Top 6 Tools
Semrush is a powerhouse in the world of SEO tools for affiliate marketing. It offers a comprehensive suite covering every aspect of digital marketing. Its standout feature is robust keyword research, enabling users to uncover high-intent keywords such as โ€œbest,โ€ โ€œreview,โ€ and โ€œvs.โ€ These are crucial for affiliate marketing keyword research. Beyond keyword discovery, Semrush...
Source: clusterview.ai
The 16 Best Moz Alternatives for Every Budgetย 
If you run local SEO campaigns, Semrush has a whole set of tools called Semrush Local that are just for that purpose. You can add this tool kit on to a standard Semrush subscription or purchase it separately.
10 SE Ranking Alternatives in 2025 [Free and Paid]
SEMrush is ideal for users who need a comprehensive suite that goes beyond SEO, including content marketing and PPC management, making it perfect for digital marketers with diverse needs. Its extensive feature set offers a broader range of capabilities compared to SE Ranking.
10 Moz Pro Alternatives in 2025 [Free and Paid]
SEMrush is an all-in-one marketing platform that offers a broader range of tools compared to Moz Pro. SEMrush includes features such as keyword research, site audits, and backlink analysis, but it also extends into content marketing, social media management, and PPC.

Social recommendations and mentions

Ably might be a bit more popular than SEMRush. We know about 26 links to it since March 2021 and only 19 links to SEMRush. 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.

Ably mentions (26)

  • AWS us-east-1 outage: How Ablyโ€™s multi-region architecture held up
    During this weekโ€™s AWS us-east-1 outage, Ably maintained full service continuity with no customer impact. This was our multi-region architecture working exactly as designed; error rates were negligibly low and unchanged throughout. Any additional round trip latency was limited to 12ms, which is below the typical variance in any client-to-endpoint connection, and well below our 40โ€“50ms global median; this is... - Source: dev.to / 10 months ago
  • Real-Time Sync Alternatives: Vaultrice vs. localStorage, DIY, Firebase, Pusher
    Services like Pusher and Ably are experts in real-time messaging. They provide robust APIs for pub/sub channels, allowing you to broadcast events to clients reliably. - Source: dev.to / 12 months ago
  • CometChat Alternatives โ€“ Comparing the Top 10 Competitors
    Ably is a real-time infrastructure platform that focuses on delivering low-latency, reliable messaging across global distributed systems. It's designed for developers building event-driven applications, including chat, but also supports broader use cases like live dashboards, GPS tracking, and collaborative tools. - Source: dev.to / about 1 year ago
  • Real-Time Authorization in a Chat Application with Permit.io and WebSockets
    For our web socket-based application, weโ€™ll be using Next.js and Ably, a service that allows us to easily integrate and manage real-time capabilities in our apps powered by web socket. - Source: dev.to / over 1 year ago
  • Curiosity: Using Ably.io Realtime Messaging as a Lightweight Database
    Ably offers various solutions for developers, with their most popular being realtime messaging based on the pub/sub model. When you publish a message to a channel, all devices connected to that channel receive it instantly. - Source: dev.to / over 1 year ago
View more

SEMRush mentions (19)

  • The Best Free AI Visibility Audit: How to Check Your AEO Score
    Semrush offers a solid checker for brand mentions in AI searches. Go Fish Digital provides a detailed manual review for one page. Betteraeo is built specifically for AEO, providing a full score and technical gap analysis. - Source: dev.to / 3 months ago
  • SEO 101: A Fun and Easy Guide to Crushing It in Digital Marketing
    Unveiling the Advanced SEO Strategies: 1. Strategic Keyword Domination: Identify high-value, long-tail keywords relevant to your niche. Leverage keyword mapping to align content with specific stages of the customer journey. Tools like Ahrefs and SEMrush offer advanced keyword research capabilities. 2. Content Excellence Beyond Basics: Craft content that not only targets keywords but provides value and... - Source: dev.to / over 2 years ago
  • Research tools for niche/product competition?
    I use SEMRush (semrush.com/) a lot when researching a niche. I would input the URL of a competitor, and then examine "competitors of organic key words" -- to find related websites that compete with the input URL website. I would spent hours and hours in researching and documenting a list of competitors in different niches. Source: about 3 years ago
  • The blackout isnโ€™t just for subreddits. Users need to participate too.
    Https://www.similarweb.com/ and https://semrush.com they are not 100% accurate but they are a good indicator. Source: about 3 years ago
  • How is your content production workflow?
    Each day that I write, I create the post directly in Wordpress. I use Surfer for Content optimization and sometimes SEMrush to help with keyword research, but Iโ€™m not super strict about following the suggestions. I try to keep it as natural as possible. Source: over 3 years ago
View more

What are some alternatives?

When comparing Ably and SEMRush, you can also consider the following products

Pusher - Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

Socket.io - Realtime application framework (Node.JS server)

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.

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.

SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters