# 识堂 vs 比特纪

The clearest difference is ads: 识堂 at none against 比特纪's shown. 识堂 also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). 比特纪's advantage is update cadence (weekly vs fortnightly). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

识堂 ships an update fortnightly, 比特纪 weekly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 识堂 | 比特纪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ai/id6657983900/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free |
| Size | 293 MB | 317 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Beijing EverHub Technology Co., Ltd.](https://appshunter.io/developer/1605760128) | [Shanghai Bipo Information Technology Co., Limited](https://appshunter.io/developer/1784419827) |

## What reviewers say

### 识堂

[App page](https://appshunter.io/ios/app/id1605760126)

**Features:** macOS Compatibility

**In-app purchases:** none


### 比特纪

[App page](https://appshunter.io/ios/app/ai/id6657983900)

This app offers a unique companionship experience with an AI that grows, remembers, and empathizes with you. It creates a personalized AI partner that lives its own life and shares its experiences, providing emotional support through voice interactions.

**Highlights:** Personalized AI companion, AI with memory and empathy, AI with independent life, Interactive voice communication, Shared growth experience, Emotional support

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

**In-app purchases:** none


## Frequently asked questions

### Is 识堂 free?

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

### Is 比特纪 free?

比特纪 is free to download, with no in-app purchases.

### Do 识堂 or 比特纪 have ads?

比特纪 shows ads; 识堂 does not.

### Which is updated more often, 识堂 or 比特纪?

识堂 ships an update fortnightly, and 比特纪 weekly. Most recently, 识堂 was updated on November 7, 2026 and 比特纪 on November 8, 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.*