# 缠论画线 vs Trader Days

The clearest difference is in-app purchases: Trader Days at none against 缠论画线's 2. Trader Days also leads on update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 缠论画线 sells 2 one-off in-app purchases. Trader Days asks for nothing beyond the download.

缠论画线 ships an update every 3 weeks, Trader Days every 3 days. The most recent releases landed on October 14, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 缠论画线 | Trader Days |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 1 MB | 3 MB |
| Requires iOS | **17.0** | 17.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [峰 梁](https://appshunter.io/developer/1896577919) | [天天点](https://appshunter.io/developer/1506115702) |

## What reviewers say

### 缠论画线

[App page](https://appshunter.io/ios/app/id6768528518)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 共建专业版 | $7.99 | one-time |
| 个人专业版 | $12.99 | one-time |


### Trader Days

[App page](https://appshunter.io/ios/app/trader-days/id6806954273)

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

**In-app purchases:** none


## Frequently asked questions

### Is 缠论画线 free?

缠论画线 is free to download, with in-app purchases available.

### Is Trader Days free?

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

### Do 缠论画线 or Trader Days have ads?

Neither 缠论画线 nor Trader Days shows ads.

### Which is updated more often, 缠论画线 or Trader Days?

缠论画线 ships an update every 3 weeks, and Trader Days every 3 days. Most recently, 缠论画线 was updated on October 14, 2026 and Trader Days on October 29, 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.*