# 139邮箱 vs 纳米AI

The clearest difference is in-app purchases: 139邮箱 at none against 纳米AI's 16. 139邮箱 also leads on review sentiment (89% vs 54%) and rating (4.7 vs 4.3). 纳米AI's advantage is update cadence (weekly vs monthly). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. 纳米AI sells 14 in-app purchases, starting at $6.99 per month. 139邮箱 asks for nothing beyond the download.

139邮箱 holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 95 and 211 respectively. Written reviews point the same way: 89% of 139邮箱's written reviews are positive against 54% of 纳米AI's.

139邮箱 ships an update monthly, 纳米AI weekly. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 139邮箱 | 纳米AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (95 ratings)](https://appshunter.io/ios/app/139/id474433226/reviews)** | [4.3 (211 ratings)](https://appshunter.io/ios/app/ai/id6737763506/reviews) |
| Number of ratings | 95 | **211** |
| Positive reviews | **88.6% of reviews** | 53.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 187 MB | 231 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [China Mobile Internet Company Limited](https://appshunter.io/developer/1612019289) | [Beijing Qihoo Technology Co Ltd](https://appshunter.io/developer/441216575) |

## What reviewers say

### 139邮箱

[App page](https://appshunter.io/ios/app/139/id474433226)

This app offers a comprehensive email and cloud storage solution, allowing users to send and receive emails, back up phone data, and utilize AI-powered tools for enhanced productivity. It provides secure cloud storage, voice-to-text notes, and convenient bill checking.

**Highlights:** Email and cloud storage integration, AI-powered writing and summarization, Secure cloud backup for files and photos, Voice-to-text note-taking, Multi-account email management, One-click passwordless login, Bill and invoice management

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

**In-app purchases:** none


### 纳米AI

[App page](https://appshunter.io/ios/app/ai/id6737763506)

This app acts as a super intelligent agent, generating expert-level videos, reports, and presentations from simple text prompts. It offers specialized AI agents for various tasks, including image editing, digital human video creation, and PPT generation, all powered by multiple large language models.

**Highlights:** Generate videos, reports, and PPTs from text, Specialized AI agents for various tasks, Digital human video creation, Professional image editing, PPT generation from themes or files, Integrated with 16 large language models, Personalized knowledge base

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月VIP | $6.99 | per month |
| 连续包季VIP | $19.99 | per 3 months |
| 连续包年VIP | $69.99 | per year |
| 100纳米 | $0.99 | one-time |
| 300纳米 | $3.99 | one-time |
| 1个月VIP | $7.99 | one-time |
| 1000纳米 | $14.99 | one-time |
| 6个月VIP | $49.99 | one-time |
| 年卡（活动） | $59.99 | one-time |
| 5000纳米 | $69.99 | one-time |
| 15个月VIP（限时活动） | $79.99 | one-time |
| 12个月VIP | $79.99 | one-time |
| 36个月 | $99.99 | one-time |
| 10000纳米 | $149.99 | one-time |

**What reviewers like**

- 🚀 Fast search and text organization capabilities
- 👍 Feels good
- 🚀 Fast response speed
- 👍 Convenient and practical

**What reviewers complain about**

- 🐛 No dark mode
- 🐛 Unable to open on Apple Mac
- 🗑️ Trash software
- 🗑️ Deceptive advertising
- 🗑️ Terrible company and software

**Reported bugs**

- Unable to receive verification code for overseas users
- App crashes on older devices

**Requested features**

- Dark mode option
- AI video generation queue improvement


## Frequently asked questions

### Is 139邮箱 free?

139邮箱 is free to download, with no in-app purchases.

### Is 纳米AI free?

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

### Which has better reviews, 139邮箱 or 纳米AI?

139邮箱 is rated higher. 139邮箱 averages 4.7 out of 5 from 95 ratings, while 纳米AI averages 4.3 from 211 ratings.

### Do 139邮箱 or 纳米AI have ads?

Neither 139邮箱 nor 纳米AI shows ads.

### Which is updated more often, 139邮箱 or 纳米AI?

139邮箱 ships an update monthly, and 纳米AI weekly. Most recently, 139邮箱 was updated on September 27, 2026 and 纳米AI on September 28, 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.*