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Average Ratings 0 Ratings

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ease
features
design
support

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Write a Review

Description

ABTestly is a robust A/B testing solution designed for teams that prefer to implement experiments through code rather than a graphical interface. Each variation is crafted using authentic JavaScript and CSS, ensuring that experiments are integrated directly into your code repository and undergo the same rigorous review process as other code modifications. The platform maintains a lightweight runtime of approximately 31 KB when gzipped, and it prevents visitors from experiencing a flash of the control version by holding the page until the variation is fully applied. Instead of relying on a single inferred number, ABTestly meticulously tracks assignment, exposure, and conversion as three distinct events on a precise ledger, enhancing the auditability of results. It provides clear confidence intervals along with the sample size, avoids premature declarations of winning variations, and identifies any sample ratio mismatches, alerting users to potential issues. The platform features three statistical engines: frequentist analysis is available for all plans, while sequential and Bayesian methods are reserved for Pro plans and above. Additionally, it includes a speed guardrail that compares the 75th percentile Largest Contentful Paint (LCP) against the control group, ensuring optimal performance metrics. Transparent pricing is available, with plans starting at $99 per month for up to 50,000 tracked users, $249 for 200,000 users, and $549 for up to 500,000 users, all of which come with a 14-day trial for monthly subscriptions to allow teams to evaluate the service effectively.

Description

PASS software offers tools for calculating sample sizes across more than 1100 statistical tests and confidence interval scenarios, which is significantly greater than what any other sample size software can provide. Each of these tools has undergone rigorous validation through published research and established texts. You can familiarize yourself with PASS by trying out a free trial, watching the accompanying video, or navigating through this website. With over 25 years of refinement, PASS has established itself as the top choice for sample size software in clinical trials, pharmaceuticals, and various medical research applications. Moreover, it has gained recognition across numerous other domains where sample size assessment is crucial. In just a few simple steps, PASS enables you to determine the sample size required for a statistical test or confidence interval. Should you require assistance at any stage, PASS provides comprehensive documentation, access to free training videos, and the option to reach out to our team of expert Ph.D. statisticians for support. This commitment to user support ensures that all users can effectively utilize the software to meet their research needs.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

No images available

Screenshots View All

Integrations

No details available.

Integrations

No details available.

Pricing Details

$99/month
Free Trial Yes 
Free Version No 

Pricing Details

$395 per year
Free Trial Yes 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

ABTestly

Founded

2025

Website

abtestly.com

Vendor Details

Company Name

NCSS

Founded

1983

Country

United States

Website

www.ncss.com/software/pass/

Product Features

AB Testing

Audience Targeting No 
Campaign Segmentation No 
Funnel Analysis No 
Heatmaps No 
Landing Pages / Web Forms No 
Multivariate Testing No 
Split Testing No 
Statistical Relevance Analysis No 
Surveys No 
Test Scheduling No 
Visual Editor No 

Product Features

Statistical Analysis

Analytics Yes 
Association Discovery Yes 
Compliance Tracking Yes 
File Management No 
File Storage Yes 
Forecasting Yes 
Multivariate Analysis Yes 
Regression Analysis Yes 
Statistical Process Control Yes 
Statistical Simulation Yes 
Survival Analysis Yes 
Time Series Yes 
Visualization Yes 

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No Alternatives

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