SKY SEAL vs CIS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SKY SEAL
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Sky Seal provides investors with off-exchange options and TRS trading for A shares.
CIS
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中国国际证券有限公司是香港持证券商（中央编号 SFC CE No:BHY490），持有香港证监会授予的1号牌照，提供合规、安全、值得信赖的证券服务，严谨对待每一笔交易。为投资者提供全程线上化的港股、美股、A 股投资服务，以及流畅、高效的投资体验。
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SKY SEAL | CIS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 61 MB | 59 MB |
| Age rating | 17+ | 17+ |
| Developer | Sky Seal Financial Limited | China International Securities Limited |
In-app purchases
SKY SEAL
No in-app purchases
CIS
No in-app purchases
