# SKY SEAL vs CIS

SKY SEAL and CIS 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.

SKY SEAL ships an update weekly, CIS every 2 weeks. The most recent releases landed on October 7, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SKY SEAL | CIS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 61 MB | 59 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Sky Seal Financial Limited](https://appshunter.io/developer/1824580029) | [China International Securities Limited](https://appshunter.io/developer/1242736458) |

## What reviewers say

### SKY SEAL

[App page](https://appshunter.io/ios/app/sky-seal/id6748181125)

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

**In-app purchases:** none


### CIS

[App page](https://appshunter.io/ios/app/cis/id6757727715)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SKY SEAL free?

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

### Is CIS free?

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

### Do SKY SEAL or CIS have ads?

Neither SKY SEAL nor CIS shows ads.

### Which is updated more often, SKY SEAL or CIS?

SKY SEAL ships an update weekly, and CIS every 2 weeks. Most recently, SKY SEAL was updated on October 7, 2026 and CIS on September 14, 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.*