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Exstats VS s3-lambda

Compare Exstats VS s3-lambda and see what are their differences

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Exstats logo Exstats

Analytics for Chrome, Edge, and Firefox extensions in one dashboard. Track installs, ratings, reviews, and search rankings across 360,000 extensions, updated daily.

s3-lambda logo s3-lambda

Lambda functions over S3 objects: each, map, reduce, filter
  • Exstats Store Trends
    Store Trends //
    2026-05-16
  • Exstats Product Dashboard
    Product Dashboard //
    2026-05-16
  • Exstats Extension Explorer
    Extension Explorer //
    2026-05-16
  • Exstats Keyword Tracking
    Keyword Tracking //
    2026-05-16

Most browser extension developers ship the same product to Chrome, Edge, and Firefox, then try to track its performance across three separate developer dashboards, three different review feeds, and three sets of keyword rankings. The data is fragmented, history is short, and there is no easy way to compare a release against a competitor over time.

Exstats fixes this by grouping the Chrome, Edge, and Firefox versions of an extension into one product view, alongside the competitors you want to watch. It tracks daily changes in installs, ratings, reviews, category rank, and search rank, then keeps up to a full year of history so weekly and monthly trends are visible at a glance. Email and Slack alerts fire on rating drops, rank shifts, and competitor updates so a regression does not sit unnoticed for a week.

Beyond your own products, the Extension Explorer indexes 360,000+ extensions with 30+ searchable fields and exportable CSV or XLSX, the Keyword Tracker suggests AI-generated keyword ideas and tracks rank by store, and the Store Trends dashboard reports category growth, rating distributions, and review activity across each store.

  • s3-lambda Landing page
    Landing page //
    2022-11-04

s3-lambda

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

Exstats features and specs

  • Supported stores
    Chrome Web Store, Microsoft Edge Add-ons, Firefox Add-ons
  • Database size
    280,000+ extensions, 6M+ reviews
  • Data refresh
    Daily
  • Historical data
    Up to 1+ year on Business plan
  • Product Dashboard
    Track your listings across all three stores in one view with ratings, users, reviews, and rank
  • Competitor tracking
    Side by side comparison with metrics, reviews, and version updates
  • Keyword tracking
    Daily rank checks with 1D, 7D, 30D deltas and full rank history
  • AI keyword suggestions
    Built in keyword discovery powered by AI
  • Extension Explorer
    Searchable market browser with 30+ fields, filters, and daily deltas
  • Store Trends
    Market level charts for category growth, rating distribution, review activity, and developer counts
  • Alerts
    Email and Slack notifications on ranking, rating, and competitor changes
  • Data export
    CSV and XLSX up to 5,000 rows

s3-lambda features and specs

  • Batch processing of S3 objects
    s3-lambda provides a straightforward way to perform batch operations on large numbers of S3 objects, enabling map, filter, and reduce-style processing over entire S3 buckets or prefixes without writing boilerplate code.
  • Familiar functional API
    The library uses a functional programming paradigm with operations like map, filter, and reduce, making it intuitive for JavaScript developers to process S3 objects using patterns they already know.
  • Built-in concurrency control
    s3-lambda handles parallel processing of S3 objects with configurable concurrency, allowing users to control how many operations run simultaneously and avoid overwhelming AWS resources or hitting rate limits.
  • Context-aware operations
    The library provides a context object within each operation that includes useful metadata about the current object being processed, simplifying access to S3 object properties during transformations.
  • Easy integration with Lambda
    Designed to work seamlessly within AWS Lambda functions, making it straightforward to set up event-driven, serverless pipelines for processing large volumes of S3 data without managing infrastructure.

Possible disadvantages of s3-lambda

  • Unmaintained project
    The repository appears to be no longer actively maintained, with limited recent commits and unresolved issues, which raises concerns about long-term reliability, security patches, and compatibility with newer AWS SDK versions.
  • Limited documentation
    The project's documentation is relatively sparse, lacking comprehensive examples, edge case handling guidance, and detailed API references, which can make it challenging for new users to adopt effectively.
  • AWS SDK version dependency
    The library depends on an older version of the AWS SDK for JavaScript, which may conflict with projects using the newer AWS SDK v3 and could miss out on performance improvements and features in updated SDKs.
  • Limited error handling flexibility
    The built-in error handling mechanisms are relatively basic, and handling partial failures or implementing sophisticated retry logic for individual object operations requires additional custom code from the developer.
  • Narrow scope of functionality
    The library is tightly focused on S3 object processing and does not integrate with other AWS services or provide utilities beyond basic map/filter/reduce operations, limiting its usefulness in more complex data pipeline scenarios.

Analysis of Exstats

Overall verdict

  • Exstats appears to be a useful analytics and statistics platform, but you should verify its current features, pricing, and reliability directly before committing, as independent details are limited.

Why this product is good

  • Provides data tracking and statistical analysis tools that can help users make informed decisions
  • Typically offers dashboards and reporting features for monitoring performance metrics
  • May integrate with existing workflows to centralize data insights
  • Can save time by automating data collection and visualization

Recommended for

  • Small to medium businesses looking to track performance metrics
  • Analysts and data-driven professionals who need statistical reporting
  • Website or app owners wanting to monitor traffic and user behavior
  • Teams seeking an affordable alternative to enterprise analytics suites

Analysis of s3-lambda

Overall verdict

  • s3-lambda is a useful Node.js library for performing operations like map, reduce, and filter directly on S3 objects using Lambda, making it good for developers who need efficient, serverless-based batch processing of S3 data without managing infrastructure. It is well suited for smaller to medium projects but may not be actively maintained for enterprise-scale needs.

Why this product is good

  • Simplifies common S3 batch operations (map, filter, reduce) with a clean, functional API
  • Leverages AWS Lambda for scalable, serverless parallel processing of S3 objects
  • Reduces boilerplate code for iterating over and transforming large numbers of S3 objects
  • Open-source and free to use, allowing customization for specific workflows
  • Integrates well with existing AWS infrastructure and Node.js applications

Recommended for

  • Developers building serverless data pipelines on AWS
  • Teams needing to process or transform large sets of S3 objects without provisioning servers
  • Node.js developers looking for a functional programming approach to S3 operations
  • Projects with batch processing needs that fit within Lambda's execution limits
  • Prototyping or small-to-medium scale ETL tasks involving S3 data

Category Popularity

0-100% (relative to Exstats and s3-lambda)
Competitor Analysis
100 100%
0% 0
Relational Databases
0 0%
100% 100
Data Analytics
100 100%
0% 0
Data Dashboard
0 0%
100% 100

Questions & Answers

As answered by people managing Exstats and s3-lambda.

What makes your product unique?

Exstats's answer

Exstats treats an extension as one product across stores, not as three separate listings on three sites. The Chrome, Edge, and Firefox versions sit in one row, and history, reviews, alerts, and competitor data flow from there.

What's the story behind your product?

Exstats's answer

Exstats started because developers shipping browser extensions kept running into the same wall. The Chrome Web Store, Edge Add-ons, and Firefox Add-ons each give publishers a siloed view with short history, no competitor data, and no way to compare a release against a rival over time. Teams that maintained extensions on more than one store ended up checking three dashboards a day and keeping competitor numbers in spreadsheets. We built Exstats so an extension and its store versions live in one place, with daily history, alerts, and competitor tracking built in.

Why should a person choose your product over its competitors?

Exstats's answer

Unified multi-browser view. Exstats is the only dashboard that groups the Chrome, Edge, and Firefox versions of an extension into one product, with shared history and shared alerts. Most analytics tools cover only the Chrome Web Store, or split the three stores across separate sites.

Full year of daily history. Stores show current numbers and a short trail. Exstats keeps daily snapshots for up to a year so weekly and monthly trends, rating regressions, and competitor launches are visible at a glance.

Reviews from every store in one table. Chrome, Edge, and Firefox reviews sit in one sortable, filterable table, so a developer can read a week of feedback without rotating between three dashboards.

Keyword tracking with AI suggestions. Search rank is tracked per store with daily change indicators, and the keyword tool suggests new keywords from competitor listings rather than expecting the developer to bring a complete list.

How would you describe the primary audience of your product?

Exstats's answer

Exstats is built for the people shipping and growing browser extensions.

The core audience is independent extension developers and small product teams who need one place to watch installs, ratings, reviews, and keyword rank for their extensions, on whichever stores they publish to.

A second audience is extension growth and marketing specialists who track competitor launches, rating shifts, and category trends on behalf of clients and need a single view across Chrome, Edge, and Firefox rather than three separate workflows.

A third audience is product and engineering teams at companies whose extension is a meaningful acquisition or retention surface, who need daily alerts, exportable data, and API access for internal dashboards.

User comments

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What are some alternatives?

When comparing Exstats and s3-lambda, you can also consider the following products

ChromeStats - Compare and analyze Chrome extensions and Android Apps

ExtPose - Optimize your Chrome extension to get more installs

Extension Ranker - Boost your Chrome Extension ranking with the help of Extension Ranker — driving more impressions, installs, and sustainable user growth.

CRX4Chrome - An alternative source of extensions for Chromium based browsers.

CRX Extractor - Get any Chrome Extension source code. Learn and hack!

AppBrain - Grow your app business with AppBrain: Monetize, advertise and analyze Android apps