# Doubao AI | Smart AI Assistant vs Eivil

The clearest difference is in-app purchases: Eivil at none against Doubao AI | Smart AI Assistant's 2. Doubao AI | Smart AI Assistant's advantage is update cadence (every 3 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Doubao AI | Smart AI Assistant sells 2 in-app purchases, starting at $3.99 per 7 days. Eivil asks for nothing beyond the download.

Doubao AI | Smart AI Assistant ships an update every 3 days, Eivil every 9 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Doubao AI | Smart AI Assistant | Eivil |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (42 ratings)](https://appshunter.io/ios/app/doubao-ai-smart-ai-assistant/id6797840836/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chavdar Koev](https://appshunter.io/developer/6797841198) | [jungyoon kim](https://appshunter.io/developer/1892828322) |

## What reviewers say

### Doubao AI | Smart AI Assistant

[App page](https://appshunter.io/ios/app/doubao-ai-smart-ai-assistant/id6797840836)

This AI-powered assistant helps with daily tasks, work, study, and creative projects. It can answer questions, generate content like images and videos, and assist with writing and learning. Boost your productivity with intelligent AI tools.

**Highlights:** AI chat for questions and tasks, Writing and brainstorming assistance, AI image generation, AI-powered video creation, Text summarization and rewriting, Translation and explanation, Productivity tools

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week Pro | $3.99 | per 7 days |
| Year Pro | $19.99 | per year |


### Eivil

[App page](https://appshunter.io/ios/app/eivil-spatial-web-browser/id6799664053)

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

**In-app purchases:** none


## Frequently asked questions

### Is Doubao AI | Smart AI Assistant free?

Doubao AI | Smart AI Assistant is free to download, with in-app purchases available.

### Is Eivil free?

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

### Do Doubao AI | Smart AI Assistant or Eivil have ads?

Neither Doubao AI | Smart AI Assistant nor Eivil shows ads.

### Which is updated more often, Doubao AI | Smart AI Assistant or Eivil?

Doubao AI | Smart AI Assistant ships an update every 3 days, and Eivil every 9 days. Most recently, Doubao AI | Smart AI Assistant was updated on October 11, 2026 and Eivil on October 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.*