# 寄信助手 vs AI Email Writer & Reply

The clearest difference is in-app purchases: 寄信助手 at none against AI Email Writer & Reply's 3. 寄信助手 also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AI Email Writer & Reply sells 3 in-app purchases, starting at $9.99 per 7 days. 寄信助手 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 寄信助手 | AI Email Writer & Reply |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6475414542/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 11 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [志超 尹](https://appshunter.io/developer/1516211321) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### 寄信助手

[App page](https://appshunter.io/ios/app/id6475414542)

This app bridges the gap between correctional facilities and families by offering secure communication services. It allows users to send handwritten letters, custom postcards, and printed photos to incarcerated loved ones. Additionally, it provides access to facility information, legal insights, and lawyer consultations.

**Highlights:** Send handwritten letters, Customizable postcards, High-definition photo printing, Correctional facility information lookup, Legal sentencing and parole prediction, Case database and legal Q&A, Online lawyer consultations

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

**In-app purchases:** none


### AI Email Writer & Reply

[App page](https://appshunter.io/ios/app/ai-email-writer-and-reply/id6759919362)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Premium Yearly | $49.99 | per year |
| Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is 寄信助手 free?

寄信助手 is free to download, with no in-app purchases.

### Is AI Email Writer & Reply free?

AI Email Writer & Reply is free to download, with in-app purchases available.

### Do 寄信助手 or AI Email Writer & Reply have ads?

Neither 寄信助手 nor AI Email Writer & Reply shows ads.

### Which is updated more often, 寄信助手 or AI Email Writer & Reply?

寄信助手 ships an update every 3 months, and AI Email Writer & Reply every 3 months. Most recently, 寄信助手 was updated on November 4, 2026 and AI Email Writer & Reply 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.*