# FoundationAgent ONE vs AgentBrief

The clearest difference is rating: FoundationAgent ONE at 5.0 against AgentBrief's 4.4. AgentBrief's advantage is in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FoundationAgent ONE sells 2 in-app purchases, starting at $0.99 per month. AgentBrief asks for nothing beyond the download.

FoundationAgent ONE holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 4 and 14 respectively.

FoundationAgent ONE ships an update every 4 months, AgentBrief every 3 weeks. The most recent releases landed on September 18, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | FoundationAgent ONE | AgentBrief |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/foundationagent-one/id1364492794/reviews)** | [4.4 (14 ratings)](https://appshunter.io/ios/app/agentbrief/id6447265075/reviews) |
| Number of ratings | 4 | **14** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 358 MB | 47 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Foundation Title, LLC](https://appshunter.io/developer/1657469347) | [Michael Simon](https://appshunter.io/developer/1680763735) |

## What reviewers say

### FoundationAgent ONE

[App page](https://appshunter.io/ios/app/foundationagent-one/id1364492794)

Generate buyer estimates and seller net sheets for real estate professionals. Customize reports for clients and access city/county-specific closing cost calculations. Offers a free plan with basic features and a premium subscription for advanced capabilities.

**Highlights:** City/County Specific Closing Cost Software, Generate Buyer Estimates, Generate Seller Net Sheets, Customizable Email/Printouts, Free Plan Available, Premium Subscription Options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $9.99 | per year |


### AgentBrief

[App page](https://appshunter.io/ios/app/agentbrief/id6447265075)

Access comprehensive residential real estate data with advanced AI and event alerts. This platform offers patented data normalization technology for unmatched insights into the market.

**Highlights:** Actionable real estate data, Patented data normalization, Event alerts, Advanced AI integration, Residential market insights

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

**In-app purchases:** none


## Frequently asked questions

### Is FoundationAgent ONE free?

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

### Is AgentBrief free?

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

### Which has better reviews, FoundationAgent ONE or AgentBrief?

FoundationAgent ONE is rated higher. FoundationAgent ONE averages 5.0 out of 5 from 4 ratings, while AgentBrief averages 4.4 from 14 ratings.

### Do FoundationAgent ONE or AgentBrief have ads?

Neither FoundationAgent ONE nor AgentBrief shows ads.

### Which is updated more often, FoundationAgent ONE or AgentBrief?

FoundationAgent ONE ships an update every 4 months, and AgentBrief every 3 weeks. Most recently, FoundationAgent ONE was updated on September 18, 2026 and AgentBrief on September 27, 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.*