# Transbay vs StepFun

The clearest difference is rating: StepFun at 4.3 against Transbay's 2.0. StepFun also leads on review sentiment (52% vs 9%) and update cadence (every 9 days vs every 3 weeks). Transbay's advantage is in-app purchases (none vs 13). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. StepFun sells 13 in-app purchases, starting at $3.99 per month. Transbay asks for nothing beyond the download.

StepFun holds the better App Store score, 4.3 against 2.0. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 9% of Transbay's written reviews are positive against 52% of StepFun's.

Transbay ships an update every 3 weeks, StepFun every 9 days. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Transbay | StepFun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/transbay/id1587567157/reviews) | **[4.3 (8 ratings)](https://appshunter.io/ios/app/stepfun-stepfun-ai-assistant/id6502382318/reviews)** |
| Number of ratings | 4 | **8** |
| Positive reviews | 9.1% of reviews | **51.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 58 MB | 114 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [亿格云](https://appshunter.io/developer/1587567159) | [StepFun Intelligence Co., Ltd.](https://appshunter.io/developer/1745274060) |

## What reviewers say

### Transbay

[App page](https://appshunter.io/ios/app/transbay/id1587567157)

This app offers cloud-based security solutions for enterprises, aiming to provide a more efficient, simple, and secure office environment. It redefines traditional security product architecture for modern workplaces.

**Highlights:** Cloud-based security architecture, Efficient office services, Simple user experience, Secure enterprise solutions, Workspace security

**Features:** Vision Pro support

**In-app purchases:** none


### StepFun

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

This AI assistant helps you think and act more efficiently. It offers smart Q&A, document understanding, and task execution, powered by advanced agent capabilities for faster learning and increased productivity. Enjoy voice-first interactions and automated task management.

**Highlights:** Smart Q&A, Document understanding, Task execution, Voice-first interactions, Agent capabilities, Real-time chat

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 入门月卡 | $3.99 | per month |
| 入门 | $5.99 | per month |
| 阶跃AI标准套餐 | $7.99 | per month |
| 阶跃AI高级套餐 | $14.99 | per month |
| 进阶 | $29.99 | per month |
| 阶跃AI专业套餐 | $49.99 | per month |
| 专业 | $69.99 | per month |
| 限时一周卡 | $0.99 | one-time |
| 入门 | $5.99 | one-time |
| 基础包 | $5.99 | one-time |
| 高阶包 | $14.99 | one-time |
| 进阶 | $29.99 | one-time |
| 专业 | $69.99 | one-time |


## Frequently asked questions

### Is Transbay free?

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

### Is StepFun free?

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

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

StepFun is rated higher. Transbay averages 2.0 out of 5 from 4 ratings, while StepFun averages 4.3 from 8 ratings.

### Do Transbay or StepFun have ads?

Neither Transbay nor StepFun shows ads.

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

Transbay ships an update every 3 weeks, and StepFun every 9 days. Most recently, Transbay was updated on September 14, 2026 and StepFun on September 22, 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.*