# 海龜湯 · AI 深夜推理 vs Ka

海龜湯 · AI 深夜推理 and Ka are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 海龜湯 · AI 深夜推理 sells 3 one-off in-app purchases and Ka sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 海龜湯 · AI 深夜推理 | Ka |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 108 MB | 29 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [GCDM Limited](https://appshunter.io/developer/1766019898) | [CFD INC](https://appshunter.io/developer/1479659426) |

## What reviewers say

### 海龜湯 · AI 深夜推理

[App page](https://appshunter.io/ios/app/ai/id6794541468)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 試味 · 9 代幣 | $2.99 | one-time |
| 常客 · 33 代幣 | $9.99 | one-time |
| 老饕 · 81 代幣 | $19.99 | one-time |


### Ka

[App page](https://appshunter.io/ios/app/ka-cha/id6802541804)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $0.99 | one-time |
| Small Gem Pack | $0.99 | one-time |
| Medium Gem Pack | $4.99 | one-time |
| Large Gem Pack | $9.99 | one-time |
| Huge Gem Pack | $29.99 | one-time |
| Mega Gem Pack | $69.99 | one-time |
| Ultra Gem Pack | $99.99 | one-time |


## Frequently asked questions

### Is 海龜湯 · AI 深夜推理 free?

海龜湯 · AI 深夜推理 is free to download, with in-app purchases available.

### Is Ka free?

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

### Do 海龜湯 · AI 深夜推理 or Ka have ads?

Neither 海龜湯 · AI 深夜推理 nor Ka shows ads.

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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.*