# StepFun vs 秒哒

The clearest difference is rating: StepFun at 4.3 against 秒哒's 3.0. StepFun also leads on ratings volume (8 vs 2). 秒哒's advantage is review sentiment (65% vs 49%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. StepFun sells 10 in-app purchases, starting at $3.99 per month and 秒哒 sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

StepFun holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews complicate that: 49% of StepFun's written reviews are positive against 65% of 秒哒's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | StepFun | 秒哒 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (8 ratings)](https://appshunter.io/ios/app/stepfun-stepfun-ai-assistant/id6502382318/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/id6761372351/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | 48.6% of reviews | **64.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 114 MB | 182 MB |
| Requires iOS | 15.1 | **15** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [StepFun Intelligence Co., Ltd.](https://appshunter.io/developer/1745274060) | [Beijing Baidu Netcom Science & Technology Co.,Ltd](https://appshunter.io/developer/372585298) |

## What reviewers say

### StepFun

[App page](https://appshunter.io/ios/app/stepfun-stepfun-ai-assistant/id6502382318)

This AI assistant helps you think and do, offering smart Q&A, document understanding, and task execution. It features real-time voice interactions and can execute tasks across devices, making it a powerful tool for learning and productivity.

**Highlights:** Smart Q&A, Document understanding, Task execution, Real-time voice interactions, Cross-device task execution, Agent capabilities

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 入门月卡 | $3.99 | per month |
| 入门 | $5.99 | per month |
| 阶跃AI高级套餐 | $14.99 | per month |
| 进阶 | $29.99 | per month |
| 专业 | $69.99 | per month |
| 限时一周卡 | $0.99 | one-time |
| 入门 | $5.99 | one-time |
| 高阶包 | $14.99 | one-time |
| 进阶 | $29.99 | one-time |
| 专业 | $69.99 | one-time |


### 秒哒

[App page](https://appshunter.io/ios/app/id6761372351)

**Features:** Siri integration, Apple Wallet, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 标准版会员-连续包月 | $2.99 | per month |
| 标准版会员-连续包月 | $3.99 | per month |
| 高级版会员-连续包月 | $9.99 | per month |
| 标准版会员-单月购买 | $2.99 | one-time |
| 秒点加油包 | $2.99 | one-time |
| 标准版会员-单月购买 | $3.99 | one-time |
| 高级版会员-单月购买 | $9.99 | one-time |


## Frequently asked questions

### Is StepFun free?

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

### Is 秒哒 free?

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

### Which has better reviews, StepFun or 秒哒?

StepFun is rated higher. StepFun averages 4.3 out of 5 from 8 ratings, while 秒哒 averages 3.0 from 2 ratings.

### Do StepFun or 秒哒 have ads?

Neither StepFun nor 秒哒 shows ads.

### Which is updated more often, StepFun or 秒哒?

StepFun ships an update every 9 days, and 秒哒 every 9 days. Most recently, StepFun was updated on November 4, 2026 and 秒哒 on November 9, 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.*