# 图流 vs Imperium Sec

The clearest difference is in-app purchases: Imperium Sec at none against 图流's 1. Imperium Sec also leads on ads (none vs shown) and update cadence (weekly vs every 18 months). On price and device support there is nothing between them.

Both are free to download. 图流 sells 1 in-app purchase, starting at $0.99 per month. Imperium Sec asks for nothing beyond the download.

图流 ships an update every 18 months, Imperium Sec weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 图流 | Imperium Sec |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Weekly** |
| Size | 11 MB | 87 MB |
| Requires iOS | 16.6 | **13** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [光礼 胡](https://appshunter.io/developer/1801038560) | [Imperium International Securities Limited](https://appshunter.io/developer/540296961) |

## What reviewers say

### 图流

[App page](https://appshunter.io/ios/app/id6743053564)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


### Imperium Sec

[App page](https://appshunter.io/ios/app/imperium-sec/id6762596256)

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

**In-app purchases:** none


## Frequently asked questions

### Is 图流 free?

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

### Is Imperium Sec free?

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

### Do 图流 or Imperium Sec have ads?

图流 shows ads; Imperium Sec does not.

### Which is updated more often, 图流 or Imperium Sec?

图流 ships an update every 18 months, and Imperium Sec weekly. Most recently, 图流 was updated on October 30, 2026 and Imperium Sec 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.*