# Oi vs Vexa

The clearest difference is rating: Vexa at 5.0 against Oi's 4.3. Vexa also leads on in-app purchases (none vs 4). Oi's advantage is ratings volume (20 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Oi sells 4 in-app purchases, starting at $7.99 per 7 days. Vexa asks for nothing beyond the download.

Vexa holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Oi has 20 ratings behind it against 1, so its average is the more settled of the two.

Oi ships an update monthly, Vexa every 5 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Oi | Vexa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/oi-ai-assistant/id6462895560/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vexa/id6793450071/reviews)** |
| Number of ratings | **20** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 106 MB | 35 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [CYBER ONE LTD](https://appshunter.io/developer/1530625447) | [VEXA MEDIA AND ADVERTISING](https://appshunter.io/developer/6793450073) |

## What reviewers say

### Oi

[App page](https://appshunter.io/ios/app/oi-ai-assistant/id6462895560)

This AI-powered application offers instant answers to your questions, generates stunning images from text descriptions, and summarizes documents. It also provides professional presentation creation, high-quality translation, and advanced image analysis to enhance your daily tasks.

**Highlights:** Instant photo/text question answering, AI-powered image creation, PDF/web link summarization, Professional presentation generation, High-quality translation, Advanced image analysis

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oi Weekly Subscription | $7.99 | per 7 days |
| Oi Monthly Subscription | $12.99 | per month |
| Oi 3 Months Subscription | $29.99 | per 3 months |
| Oi Yearly Subscription | $99.99 | per year |


### Vexa

[App page](https://appshunter.io/ios/app/vexa/id6793450071)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oi free?

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

### Is Vexa free?

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

### Which has better reviews, Oi or Vexa?

Vexa is rated higher. Oi averages 4.3 out of 5 from 20 ratings, while Vexa averages 5.0 from 1 ratings.

### Do Oi or Vexa have ads?

Neither Oi nor Vexa shows ads.

### Which is updated more often, Oi or Vexa?

Oi ships an update monthly, and Vexa every 5 weeks. Most recently, Oi was updated on October 6, 2026 and Vexa on October 24, 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.*