# 逐道PDA vs TT Mail

The clearest difference is in-app purchases: 逐道PDA at none against TT Mail's 3. 逐道PDA also leads on update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TT Mail sells 3 in-app purchases, starting at $1.99 per month. 逐道PDA asks for nothing beyond the download.

逐道PDA ships an update monthly, TT Mail every 3 months. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 逐道PDA | TT Mail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 29 MB | 20 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广州明远世纪信息科技有限公司](https://appshunter.io/developer/1602656890) | [Guangdong Yuetan Technology Co., Ltd](https://appshunter.io/developer/1763191669) |

## What reviewers say

### 逐道PDA

[App page](https://appshunter.io/ios/app/pda/id6673907829)

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

**In-app purchases:** none


### TT Mail

[App page](https://appshunter.io/ios/app/tt-mail/id6740429154)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Seasonal subscription | $3.99 | per 3 months |
| Annual subscription | $9.99 | per year |


## Frequently asked questions

### Is 逐道PDA free?

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

### Is TT Mail free?

TT Mail is free to download, with in-app purchases available.

### Do 逐道PDA or TT Mail have ads?

Neither 逐道PDA nor TT Mail shows ads.

### Which is updated more often, 逐道PDA or TT Mail?

逐道PDA ships an update monthly, and TT Mail every 3 months. Most recently, 逐道PDA was updated on September 15, 2026 and TT Mail on September 18, 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.*