# iPostal1 vs 3Stone AI

The clearest difference is review sentiment: 3Stone AI at 100% against iPostal1's 17%. 3Stone AI also leads on rating (5.0 vs 3.3) and update cadence (every 2 days vs every 3 weeks). iPostal1's advantage is in-app purchases (none vs 6) and ratings volume (1.1K vs 1). On price, ads and device support there is nothing between them.

Both are free to download. 3Stone AI sells 6 in-app purchases, starting at $7.99 per month. iPostal1 asks for nothing beyond the download.

3Stone AI holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: iPostal1 has 1.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 17% of iPostal1's written reviews are positive against 100% of 3Stone AI's.

iPostal1 ships an update every 3 weeks, 3Stone AI every 2 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iPostal1 | 3Stone AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (1.1K ratings)](https://appshunter.io/ios/app/ipostal1/id921734628/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/3stone-ai/id6804494320/reviews)** |
| Number of ratings | **1.1K** | 1 |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Subscription | **Free** |
| Size | 60 MB | 22 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [USZoom, LLC](https://appshunter.io/developer/921734627) | [3Stone AI LLC](https://appshunter.io/developer/6804494322) |

## What reviewers say

### iPostal1

[App page](https://appshunter.io/ios/app/ipostal1/id921734628)

Access a digital version of your physical mail and packages from anywhere, 24/7. Choose a real street address for business or personal use and manage your mail with options to forward, scan, shred, or discard.

**Highlights:** Digital mailbox access, Real street addresses, Mail forwarding, Open and scan mail, Shred or discard mail, Add phone and fax lines

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient service
- 🚀 Prompt and efficient
- 🔒 Secure
- 💡 Great for travelers
- 👍 User-friendly app

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App is slow and unresponsive
- 🐛 App doesn't show updated mail information
- 💰 Expensive with many hidden fees
- 🐛 Poor app design and usability

**Reported bugs**

- App crashes on launch
- App shows outdated mail information
- Login issues and invalid session errors
- Inconsistent app behavior across devices
- Inability to manage mail and packages properly

**Requested features**

- Improve app performance and stability
- Provide more transparent pricing
- Enhance customer support and communication
- Integrate app and website functionality
- Add more customization and control options


### 3Stone AI

[App page](https://appshunter.io/ios/app/3stone-ai/id6804494320)

Transform ideas into finished projects with an AI assistant. Engage in natural conversations, analyze files, create documents, manage projects, and initiate software or website builds seamlessly. Your progress and data sync across devices.

**Highlights:** AI chat for questions and research, Voice conversations and speech input, File and document analysis, Project and build management, Website and software creation, Cross-device synchronization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3Stone Starter | $7.99 | per month |
| 3Stone Plus | $19.99 | per month |
| 3Stone Advanced | $75.00 | per month |
| 3Stone Starter | $79.99 | per year |
| 3Stone Pro | $199.99 | per month |
| 3Stone Plus | $239.99 | per year |


## Frequently asked questions

### Is iPostal1 free?

iPostal1 is free to download, with no in-app purchases.

### Is 3Stone AI free?

3Stone AI is free to download, with in-app purchases available.

### Which has better reviews, iPostal1 or 3Stone AI?

3Stone AI is rated higher. iPostal1 averages 3.3 out of 5 from 1.1K ratings, while 3Stone AI averages 5.0 from 1 ratings.

### Do iPostal1 or 3Stone AI have ads?

Neither iPostal1 nor 3Stone AI shows ads.

### Which is updated more often, iPostal1 or 3Stone AI?

iPostal1 ships an update every 3 weeks, and 3Stone AI every 2 days. Most recently, iPostal1 was updated on November 6, 2026 and 3Stone AI on October 31, 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.*