# Bala量化 vs 缠论画线

The clearest difference is iOS requirement: Bala量化 at 15.0 against 缠论画线's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Bala量化 sells 6 in-app purchases, starting at $3.99 per month and 缠论画线 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Bala量化 ships an update fortnightly, 缠论画线 every 3 weeks. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Bala量化 | 缠论画线 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 27 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [晓东 陈](https://appshunter.io/developer/849609408) | [峰 梁](https://appshunter.io/developer/1896577919) |

## What reviewers say

### Bala量化

[App page](https://appshunter.io/ios/app/bala/id6766252962)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 普通会员 - 1个月 | $3.99 | per month |
| Plus 会员 - 1个月 | $9.99 | per month |
| Pro 会员 - 1个月 | $14.99 | per month |
| 普通会员 - 12个月 | $39.99 | per year |
| Plus 会员 - 12个月 | $99.99 | per year |
| Pro 会员 - 12个月 | $149.99 | per year |


### 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 |


## Frequently asked questions

### Is Bala量化 free?

Bala量化 is free to download, with in-app purchases available.

### Is 缠论画线 free?

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

### Do Bala量化 or 缠论画线 have ads?

Neither Bala量化 nor 缠论画线 shows ads.

### Which is updated more often, Bala量化 or 缠论画线?

Bala量化 ships an update fortnightly, and 缠论画线 every 3 weeks. Most recently, Bala量化 was updated on October 25, 2026 and 缠论画线 on October 14, 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.*