# 凯力朗智能 vs SAIL250®MD

The clearest difference is rating: SAIL250®MD at 1.3 against 凯力朗智能's 1.0. SAIL250®MD also leads on ratings volume (18 vs 1) and update cadence (every 2 months vs every 5 months). 凯力朗智能's advantage is iOS requirement (8.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

SAIL250®MD holds the better App Store score, 1.3 against 1.0. That said, the two scores are not equally well evidenced: SAIL250®MD has 18 ratings behind it against 1, so its average is the more settled of the two.

凯力朗智能 ships an update every 5 months, SAIL250®MD every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | 凯力朗智能 | SAIL250®MD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1448073060/reviews) | **[1.3 (18 ratings)](https://appshunter.io/ios/app/sail250md/id1640403470/reviews)** |
| Number of ratings | 1 | **18** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 49 MB | 25 MB |
| Requires iOS | **8.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wenzhou Yunjia Network Technology Co., Ltd.](https://appshunter.io/developer/1448073059) | [Historic Ships In Baltimore, Inc.](https://appshunter.io/developer/1510752139) |

## What reviewers say

### 凯力朗智能

[App page](https://appshunter.io/ios/app/id1448073060)

**Features:** macOS Compatibility

**In-app purchases:** none


### SAIL250®MD

[App page](https://appshunter.io/ios/app/sail250md/id1640403470)

Access comprehensive details about visiting ships, airshow performances, and festival locations. This app offers essential information for attendees of the Maryland airshow and related events.

**Highlights:** Ship visiting information, Airshow performance details, Flyover schedules, Festival site locations, Event information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 凯力朗智能 free?

凯力朗智能 is free to download, with no in-app purchases.

### Is SAIL250®MD free?

SAIL250®MD is free to download, with no in-app purchases.

### Which has better reviews, 凯力朗智能 or SAIL250®MD?

SAIL250®MD is rated higher. 凯力朗智能 averages 1.0 out of 5 from 1 ratings, while SAIL250®MD averages 1.3 from 18 ratings.

### Do 凯力朗智能 or SAIL250®MD have ads?

Neither 凯力朗智能 nor SAIL250®MD shows ads.

### Which is updated more often, 凯力朗智能 or SAIL250®MD?

凯力朗智能 ships an update every 5 months, and SAIL250®MD every 2 months. Most recently, 凯力朗智能 was updated on October 24, 2026 and SAIL250®MD on October 24, 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.*