# Oi vs Big Delivery

The clearest difference is in-app purchases: Big Delivery at none against Oi's 4. Big Delivery also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). Oi's advantage is update cadence (monthly vs every 3 months). On price and ads there is nothing between them.

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

Oi ships an update monthly, Big Delivery every 3 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Oi | Big Delivery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (20 ratings)](https://appshunter.io/ios/app/oi-ai-assistant/id6462895560/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Freemium | — |
| Size | 106 MB | 39 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [CYBER ONE LTD](https://appshunter.io/developer/1530625447) | [Rubik Smart Solutions](https://appshunter.io/developer/1483981076) |

## 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 |


### Big Delivery

[App page](https://appshunter.io/ios/app/big-delivery/id6503826984)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oi free?

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

### Is Big Delivery free?

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

### Do Oi or Big Delivery have ads?

Neither Oi nor Big Delivery shows ads.

### Which is updated more often, Oi or Big Delivery?

Oi ships an update monthly, and Big Delivery every 3 months. Most recently, Oi was updated on November 3, 2026 and Big Delivery 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.*