# Seity smart vs perfectisan device

Seity smart and perfectisan device are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Seity smart ships an update every 9 months, perfectisan device every 7 months. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Seity smart | perfectisan device |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 7 months** |
| Size | 215 MB | 28 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Seity Light Zhongshan Co Ltd](https://appshunter.io/developer/1690298103) | [广文 王](https://appshunter.io/developer/1468077249) |

## What reviewers say

### Seity smart

[App page](https://appshunter.io/ios/app/seity-smart/id6449726981)

**Features:** macOS Compatibility

**In-app purchases:** none


### perfectisan device

[App page](https://appshunter.io/ios/app/perfectisan-device/id6450295041)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Seity smart free?

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

### Is perfectisan device free?

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

### Do Seity smart or perfectisan device have ads?

Neither Seity smart nor perfectisan device shows ads.

### Which is updated more often, Seity smart or perfectisan device?

Seity smart ships an update every 9 months, and perfectisan device every 7 months. Most recently, Seity smart was updated on October 10, 2026 and perfectisan device on October 9, 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.*