# Optimal Blue vs TheRuleTool

The clearest difference is in-app purchases: Optimal Blue at none against TheRuleTool's 1. Optimal Blue also leads on ratings volume (196 vs 1). TheRuleTool's advantage is update cadence (every 4 days vs monthly) and iOS requirement (13.4 vs 18.6). On price, rating, ads and device support there is nothing between them.

Both are free to download. TheRuleTool sells 1 in-app purchase, starting at $20.00 per month. Optimal Blue asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Optimal Blue against 5.0 for TheRuleTool. That said, the two scores are not equally well evidenced: Optimal Blue has 196 ratings behind it against 1, so its average is the more settled of the two.

Optimal Blue ships an update monthly, TheRuleTool every 4 days. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Optimal Blue | TheRuleTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (196 ratings)](https://appshunter.io/ios/app/optimal-blue-ppe/id6469644596/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/theruletool/id6605921466/reviews)** |
| Number of ratings | **196** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | **Free** | Subscription |
| Size | 36 MB | 46 MB |
| Requires iOS | 18.6 | **13.4** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Optimal Blue LLC](https://appshunter.io/developer/819598914) | [TAKE THREE TECHNOLOGIES, LLC](https://appshunter.io/developer/1448718285) |

## What reviewers say

### Optimal Blue

[App page](https://appshunter.io/ios/app/optimal-blue-ppe/id6469644596)

Access a comprehensive mortgage pricing and product engine on your mobile device. Track market indices, receive real-time updates, and generate instant, accurate loan quotes. Ideal for mortgage professionals needing on-the-go access to pricing data and scenario analysis.

**Highlights:** Mortgage product, pricing, and eligibility engine, Track mortgage market indices (OBMMI™), Receive push notifications for updates, Price scenarios and save favorites, Automatic scenario refresh, Access full pricing inputs and custom fields, View eligible and ineligible products with reasons

**Features:** Apple Watch app

**In-app purchases:** none


### TheRuleTool

[App page](https://appshunter.io/ios/app/theruletool/id6605921466)

Access instant mortgage guidelines from leading agencies like Fannie Mae and Freddie Mac. This AI-powered tool offers comprehensive guides and text support for mortgage professionals, ensuring you have the latest information for efficient and accurate processing.

**Highlights:** AI-powered guideline search, Comprehensive mortgage guides, Instant text message support, Daily expert updates, Support for multiple agencies

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual User Subscription | $20.00 | per month |


## Frequently asked questions

### Is Optimal Blue free?

Optimal Blue is free to download, with no in-app purchases.

### Is TheRuleTool free?

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

### Which has better reviews, Optimal Blue or TheRuleTool?

TheRuleTool is rated higher. Optimal Blue averages 4.9 out of 5 from 196 ratings, while TheRuleTool averages 5.0 from 1 ratings.

### Do Optimal Blue or TheRuleTool have ads?

Neither Optimal Blue nor TheRuleTool shows ads.

### Which is updated more often, Optimal Blue or TheRuleTool?

Optimal Blue ships an update monthly, and TheRuleTool every 4 days. Most recently, Optimal Blue was updated on September 23, 2026 and TheRuleTool on September 14, 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.*