# I vs Expoll

The clearest difference is in-app purchases: I at none against Expoll's 4. I also leads on update cadence (every 9 days vs every 2 months) and iOS requirement (8.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Expoll sells 4 one-off in-app purchases. I asks for nothing beyond the download.

I ships an update every 9 days, Expoll every 2 months. The most recent releases landed on September 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | I | Expoll |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/i-usbkey-pro/id1258469579/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Free | — |
| Size | 40 MB | 7 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [zhong qibiao](https://appshunter.io/developer/1118837284) | [Tom Arlt](https://appshunter.io/developer/1611137664) |

## What reviewers say

### I

[App page](https://appshunter.io/ios/app/i-usbkey-pro/id1258469579)

Manage all your files on iOS devices with ease. This app allows you to exchange files between different devices and platforms, back up contacts and camera roll, and play media directly from your device. It supports a wide range of document, image, audio, and video file formats.

**Highlights:** File management for iOS devices, Cross-device file exchange, Contact and camera roll backup, Video and music playback, Image and document preview, Support for various file formats

**Features:** macOS Compatibility

**In-app purchases:** none


### Expoll

[App page](https://appshunter.io/ios/app/expoll/id1639799209)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffebreak for Developer | $0.99 | one-time |
| Developer Cake Break | $2.99 | one-time |
| A whole cake as donation | $9.99 | one-time |
| Very generous Donation | $19.99 | one-time |


## Frequently asked questions

### Is I free?

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

### Is Expoll free?

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

### Do I or Expoll have ads?

Neither I nor Expoll shows ads.

### Which is updated more often, I or Expoll?

I ships an update every 9 days, and Expoll every 2 months. Most recently, I was updated on September 17, 2026 and Expoll on October 5, 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.*