# Subai vs Pico PDF Viewer

The clearest difference is in-app purchases: Pico PDF Viewer at none against Subai's 1. Subai's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Subai sells 1 one-off in-app purchase. Pico PDF Viewer asks for nothing beyond the download.

Subai ships an update fortnightly, Pico PDF Viewer weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Subai | Pico PDF Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/subai/id6503164347/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 175 MB | 7 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [dong huu quan](https://appshunter.io/developer/1277750787) | [SHIH WEI LING](https://appshunter.io/developer/6803189463) |

## What reviewers say

### Subai

[App page](https://appshunter.io/ios/app/subai/id6503164347)

Break language barriers with an AI-powered tool that translates videos and audio into over 100 languages. Upload files, record your voice, or paste video links for quick, accurate translations. Ideal for creators and global communicators.

**Highlights:** AI-powered video and audio translation, Supports over 100 languages, Upload video/audio files, Voice recording for translation, Website video link translation, Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $4.99 | one-time |


### Pico PDF Viewer

[App page](https://appshunter.io/ios/app/pico-pdf-viewer/id6804466063)

**In-app purchases:** none


## Frequently asked questions

### Is Subai free?

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

### Is Pico PDF Viewer free?

Pico PDF Viewer is free to download, with no in-app purchases.

### Do Subai or Pico PDF Viewer have ads?

Both Subai and Pico PDF Viewer show ads.

### Which is updated more often, Subai or Pico PDF Viewer?

Subai ships an update fortnightly, and Pico PDF Viewer weekly. Most recently, Subai was updated on November 4, 2026 and Pico PDF Viewer on October 31, 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.*