# ChelseaAgent ONE vs Sierra Interactive

The clearest difference is in-app purchases: Sierra Interactive at none against ChelseaAgent ONE's 2. Sierra Interactive also leads on ratings volume (1.7K vs 1). ChelseaAgent ONE's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and device support there is nothing between them.

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

ChelseaAgent ONE holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Sierra Interactive has 1.7K ratings behind it against 1, so its average is the more settled of the two.

ChelseaAgent ONE ships an update every 2 months, Sierra Interactive every 6 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ChelseaAgent ONE | Sierra Interactive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chelseaagent-one/id434567333/reviews)** | [4.8 (1.7K ratings)](https://appshunter.io/ios/app/sierra-interactive/id1458851463/reviews) |
| Number of ratings | 1 | **1.7K** |
| Positive reviews | — | 70.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Freemium | **Free** |
| Size | 348 MB | 38 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [PalmAgent Software](https://appshunter.io/developer/303860817) | [Sierra Interactive, LLC](https://appshunter.io/developer/1458851462) |

## What reviewers say

### ChelseaAgent ONE

[App page](https://appshunter.io/ios/app/chelseaagent-one/id434567333)

This app provides real estate professionals with city/county-specific closing cost calculations. Generate seller net sheets and buyer estimates quickly and professionally for clients. Offers a free plan for basic estimates and a premium subscription for advanced features.

**Highlights:** City/county specific closing cost calculations, Professional seller net sheets, Buyer estimates, Free plan for basic estimates, ONE Premium subscription, 30-day free trial

**Features:** macOS Compatibility

**In-app purchases (2)**

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


### Sierra Interactive

[App page](https://appshunter.io/ios/app/sierra-interactive/id1458851463)

Manage real estate leads and client interactions efficiently from anywhere. This app offers instant notifications, bulk communication tools, and detailed lead insights to streamline your workflow on the go.

**Highlights:** Instant lead notifications, Bulk email and text messaging, Integrated dialer for calls, Smart lead filtering, Lead context and history, Task and inbox management

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent mobile app experience
- 👍 User-friendly and intuitive interface
- 💡 Powerful lead management features
- 🚀 Seamless integration with CRM platform

**What reviewers complain about**

- 🐛 Buggy and unreliable call recording/note-taking
- 🔧 Limited customization options for statuses
- 🔧 Inability to use own phone number for calls/texts

**Reported bugs**

- Dialer screen blocks access to main app on larger devices
- Call list feature has issues with repeated calls and data loss

**Requested features**

- Live feed of recent website visitors
- Ability to view HotSheets on mobile app
- Spell check functionality


## Frequently asked questions

### Is ChelseaAgent ONE free?

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

### Is Sierra Interactive free?

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

### Which has better reviews, ChelseaAgent ONE or Sierra Interactive?

ChelseaAgent ONE is rated higher. ChelseaAgent ONE averages 5.0 out of 5 from 1 ratings, while Sierra Interactive averages 4.8 from 1.7K ratings.

### Do ChelseaAgent ONE or Sierra Interactive have ads?

Neither ChelseaAgent ONE nor Sierra Interactive shows ads.

### Which is updated more often, ChelseaAgent ONE or Sierra Interactive?

ChelseaAgent ONE ships an update every 2 months, and Sierra Interactive every 6 weeks. Most recently, ChelseaAgent ONE was updated on October 10, 2026 and Sierra Interactive on October 25, 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.*