# STATS™ Mobile vs Reliability Pro

The clearest difference is in-app purchases: STATS™ Mobile at none against Reliability Pro's 2. Reliability Pro's advantage is update cadence (every 4 days vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Reliability Pro sells 2 in-app purchases, starting at $14.99 per month. STATS™ Mobile asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for STATS™ Mobile against 5.0 for Reliability Pro. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

STATS™ Mobile ships an update every 2 months, Reliability Pro every 4 days. The most recent releases landed on September 2, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | STATS™ Mobile | Reliability Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/stats-mobile/id1513218922/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/reliability-pro/id6782085318/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | **Free** | Subscription |
| Size | 30 MB | 74 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Decision Analyst](https://appshunter.io/developer/1250212248) | [Illayathambi Kunadian](https://appshunter.io/developer/6782085321) |

## What reviewers say

### STATS™ Mobile

[App page](https://appshunter.io/ios/app/stats-mobile/id1513218922)

This application offers essential statistical calculators for marketing researchers and students. It provides tools for summary statistics, sample size determination, standard error calculations, and significance testing, with clear explanations of formulas.

**Highlights:** Summary statistics for CSV files, Sample size determination, Standard error of proportion, Significance testing, Formula explanations

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Reliability Pro

[App page](https://appshunter.io/ios/app/reliability-pro/id6782085318)

This app offers a comprehensive suite of over 75 professional tools for reliability, quality, and statistics analysis. It includes advanced features like life-data analysis, system modeling, and SPC control charts, all accessible on mobile devices with step-by-step tutorials and an AI assistant.

**Highlights:** 75+ reliability, quality, and statistics tools, AI assistant for tool discovery, Step-by-step video tutorials, Reference library with theory and formulas, Data import and export (PDF, text), Verified tools against industry standards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reliability Pro Monthly | $14.99 | per month |
| Reliability Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is STATS™ Mobile free?

STATS™ Mobile is free to download, with no in-app purchases.

### Is Reliability Pro free?

Reliability Pro is free to download, with in-app purchases available.

### Which has better reviews, STATS™ Mobile or Reliability Pro?

STATS™ Mobile and Reliability Pro are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do STATS™ Mobile or Reliability Pro have ads?

Neither STATS™ Mobile nor Reliability Pro shows ads.

### Which is updated more often, STATS™ Mobile or Reliability Pro?

STATS™ Mobile ships an update every 2 months, and Reliability Pro every 4 days. Most recently, STATS™ Mobile was updated on September 2, 2026 and Reliability Pro on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*