What is Keen IO's free tier limit?

Keen IO's Developer Plan is free and allows for the ingestion of up to 100,000 events per month with 30 days of data retention.

How much does Keen IO cost for 1 million events?

The Startup Plan, which supports up to 1 million events per month and 1 year of data retention, typically starts at $120 per month. Exceeding this limit would likely incur additional charges or require an upgrade to a higher tier.

Is there an annual discount for Keen IO plans?

Yes, annual billing options are generally available for Keen IO's paid plans, which may offer a discount compared to monthly billing rates. Specifics can be found on their official pricing page.

What happens if I exceed my event limit on Keen IO?

If you exceed your event limit on a paid plan, you may incur overage charges, or your account might require an upgrade to a higher-capacity plan. Exceeding the free tier limit requires upgrading to a paid plan.

Does Keen IO charge for data retention?

Yes, data retention is a key factor in Keen IO's pricing. Higher-tier plans include longer data retention periods, with the cost reflecting the increased storage and access requirements for historical data.

How does Keen IO's pricing compare to Mixpanel or Amplitude?

Keen IO's pricing focuses on event data ingestion and storage as an API-first backend, requiring custom front-end development. Mixpanel and Amplitude often include comprehensive UI and out-of-the-box analytics features, with pricing potentially reflecting these integrated services more heavily.

Keen IO Pricing: Plans, Tiers, and Real-World Costs (2026)

Pricing overview

Keen IO provides a pricing structure primarily based on the volume of events ingested monthly and the desired data retention period. The platform is designed for developers requiring flexible, custom analytics solutions, making its cost model scalable from small projects to large enterprise needs. A free Developer Plan is available, offering a baseline for evaluation and low-volume applications. Paid plans introduce increased event allowances, longer data retention, and additional support features.

As an analytics backend, Keen IO's pricing differentiates it from full-stack analytics products by focusing on raw event data collection and querying services. This model means users pay for the infrastructure to store and process their event streams, with the expectation that they will build their own visualization and reporting layers using Keen IO's APIs and SDKs.

The core components influencing cost are:

Event Volume: The number of events (data points) collected and ingested by Keen IO each month. This is typically the primary driver of cost.
Data Retention: The duration for which event data is stored and accessible. Longer retention periods generally correspond to higher costs.
Query Volume: While not always a primary direct charge, excessive query load can impact performance or necessitate higher-tier plans for dedicated resources.
Support: Higher plans often include dedicated support channels or faster response times.

For detailed, up-to-date pricing information, users should consult the official Keen IO pricing page.

Plans and tiers

Keen IO offers several plans, each tailored to different usage scales and requirements. These plans progress from a free tier for initial development and testing to higher-capacity paid tiers for production applications and enterprises. Key differences between tiers include event limits, data retention, and access to support and advanced features.

The following table outlines the general structure and features of Keen IO's plans:

Plan Name	Monthly Price (approx.)	Key Limits / Features	Best For
Developer Plan	Free	Up to 100,000 events/month, 30 days data retention, community support	Prototyping, small personal projects, evaluation
Startup Plan	$120	Up to 1 million events/month, 1 year data retention, email support	Early-stage products, growing applications, MVPs
Growth Plan	Custom (starts higher than Startup)	Higher event limits, longer data retention (e.g., 2+ years), priority support, advanced features	Mid-sized applications, established products with increasing event volume
Enterprise Plan	Custom	Unlimited events, custom data retention, dedicated support, SLAs, advanced security, on-premise options	Large-scale applications, enterprises with high data volume and specific compliance needs

Annual billing options are typically available for paid plans and may offer a discount compared to monthly billing. Specific pricing for Growth and Enterprise plans is determined through direct consultation with Keen IO, as these often involve tailored solutions for infrastructure and support.

Free tier and limits

Keen IO provides a free Developer Plan, designed to enable developers to get started with the platform without an upfront financial commitment. This tier is suitable for testing, prototyping, and managing low-volume applications.

The Developer Plan includes:

Event Limit: Up to 100,000 events ingested per month. An event is a single data point recorded, such as a user login, a page view, or an API call.
Data Retention: Data is retained for 30 days. After this period, older data points are no longer accessible for querying.
Support: Users typically rely on community forums and documentation for support.
Features: Access to core API features for event collection and querying, allowing for custom dashboard creation and data exploration.

For applications that exceed 100,000 events per month or require longer data retention, users would need to upgrade to a paid plan. The free tier serves as a clear entry point for developers evaluating Keen IO's capabilities for custom analytics needs.

Real-world cost examples

Understanding Keen IO's pricing requires considering typical event volumes and data retention needs. Here are a few illustrative scenarios:

Small Project / MVP (Developer Plan):
A developer is building a new mobile app and wants to track basic user interactions like app launches, screen views, and button clicks. They anticipate around 50,000 events per month and only need to look at data from the last few weeks to inform immediate development decisions.
- Estimated Cost: $0/month (within Developer Plan limits).
- Consideration: If the app gains traction and event volume surpasses 100,000, an upgrade would be necessary.
Growing Web Application (Startup Plan):
A startup has a web application with approximately 5,000 daily active users, generating an average of 10 events per user per day (e.g., page views, form submissions, API calls). This totals around 1.5 million events per month. They need to analyze trends over the past year to understand user behavior and feature adoption.
- Event Volume: 5,000 users * 10 events/user/day * 30 days = 1,500,000 events/month.
- Estimated Cost: This volume exceeds the Startup Plan's stated limit of 1 million events. While the Startup Plan is $120 for 1 million events, a project with 1.5 million events would likely fall into a higher tier or incur overage charges, or require moving to a custom Growth Plan. If the Startup Plan had an overage rate, an additional charge would apply for the 500,000 events beyond the base. For example, if overages were $0.10 per 10,000 events, that would be an additional $50, bringing the total to $170/month. Users should confirm exact overage policies on the official Keen IO pricing page.
- Consideration: The 1-year data retention of the Startup Plan would meet their historical analysis needs.
Established SaaS Product (Growth Plan):
A SaaS company has a product with 50,000 active users, each generating 20 events per day. This equates to 30 million events per month. They require 2 years of data retention for historical comparisons and dedicated technical support.
- Event Volume: 50,000 users * 20 events/user/day * 30 days = 30,000,000 events/month.
- Estimated Cost: This volume significantly exceeds the Startup Plan and would require a custom Growth Plan. Pricing would be negotiated directly with Keen IO based on specific event volume, retention, and support requirements.

How the pricing compares

Keen IO's pricing model, focused on raw event data collection and a flexible API for custom analytics, differentiates it from other analytics solutions, particularly those offering out-of-the-box dashboards and extensive UI-driven analysis. Competitors like Mixpanel and Amplitude often offer a more opinionated, full-stack approach to product analytics, while PostHog provides an open-source alternative with self-hosting options.

Mixpanel and Amplitude: These platforms typically offer free tiers with limits on monthly tracked users or events, similar to Keen IO's event limits. Their paid plans often scale with user volume or event volume, but their strength lies in their built-in visualization, segmentation, and A/B testing tools. This means a higher portion of the cost covers the analytics interface and pre-built features. For example, Mixpanel details its pricing based on tracked users, with a free plan for up to 100,000 monthly tracked users, as per Mixpanel's pricing explanation.
- Keen IO Differentiator: Keen IO's pricing is primarily for the data infrastructure. Developers using Keen IO build the analytics layer themselves, potentially saving costs on unused UI features but incurring development time.
PostHog: As an open-source product analytics platform, PostHog offers a self-hosted option that can be run on a user's own infrastructure. This model allows for significant cost control, as infrastructure costs are dictated by the user's cloud provider (e.g., AWS, Azure, Google Cloud). PostHog also provides a cloud-hosted version with pricing based on event volume and seat count, similar to other SaaS providers. PostHog's pricing documentation offers details on its event-based model for cloud users, as outlined on PostHog's pricing page.
- Keen IO Differentiator: Keen IO is a fully managed service, abstracting away infrastructure management. While PostHog self-hosting offers cost flexibility, it requires operational overhead that Keen IO's managed service avoids. Keen IO focuses on being an API-first backend, whereas PostHog provides a more complete, integrated analytics suite.
Cloud Provider Analytics Services (e.g., AWS Kinesis, Google Cloud Pub/Sub with BigQuery): For highly custom and massive-scale data pipelines, organizations might build their own analytics stack using cloud primitives. These services are typically priced on granular usage metrics like data ingested, data stored, and queries executed.
- Keen IO Differentiator: Keen IO offers a higher-level abstraction, simplifying event collection, storage, and querying compared to assembling and managing a custom solution from basic cloud components. It provides a more opinionated API for analytics data specifically, reducing development time and maintenance overhead for many use cases.

In summary, Keen IO's pricing caters to those who prioritize precise control over their analytics data and visualizations, are comfortable building custom front-ends, and seek a managed service for the underlying event infrastructure. Its cost-effectiveness depends on the balance between the event volume, data retention needs, and the value placed on development flexibility versus out-of-the-box features.