长龙航空 vs Realtime Altimeter Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
长龙航空
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【浙江长龙航空】 浙江长龙航空股份有限公司（ZHEJIANG LOONG AIRLINES CO. LTD.）成立于2011年4月19日，2012年8月9日货运首航，2013年12月29日客运首航，是以杭州萧山国际机场为主运营基地的浙江省唯一的本土总部型客货综合公共运输航空公司，拥有国内国际、客运货运全牌照航空运输资质，属中大型航空公司，居民营航空公司前列，是浙江省重点培育的“雄鹰企业”。 【各类机票优惠活动】 每月6日会员日、特价机票、优惠活动、会员福利等不容错过。 【特色功能】 机票的预定、退改、特色升舱、选座、航班动态、在线客服、机票验真、报销服务、补订儿童机票、预付费行李等自助服务。 更多信息请关注 微信公众号:浙江长龙航空 官方微博账号:@浙江长龙航空 小红书：浙江长龙航空 客服热线电话:956199
Realtime Altimeter Pro
Track your real-time altitude, speed, and direction without needing a network connection. Capture photos with embedded altitude and GPS data to document your journeys. Includes a free compass and barometer.
- Offline altitude tracking
- Real-time compass
- Velocimeter for speed measurement
- Barometer
- Watermark camera with GPS data
- No ads
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Realtime Altimeter Pro displays no Ads. This is a must-have App for travel, check your real-time altitude without network. Also with free compass, velocimeter and barometer. •Altimeter: Always get your altitude even if you don't have network, it is useful when you are in some rural areas, mountains etc. •Compass: Beautifully designed compass is integrated in this app. •Velocimeter: Want to know your speed when you are walking, riding or in a car? simply open this app. •Watermark Camera: Take photos with your altitude and GPS information, let's remember your adventure for ever.
Screenshots
Verdict
The clearest difference is price: 长龙航空 at Free against Realtime Altimeter Pro's $1.99. 长龙航空 also leads on ads (none vs shown) and update cadence (every 2 months vs every 22 months). Realtime Altimeter Pro's advantage is rating (5.0 vs 3.0) and review sentiment (68% vs 57%). On in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
长龙航空 is free to download; Realtime Altimeter Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Realtime Altimeter Pro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 57% of 长龙航空's written reviews are positive against 68% of Realtime Altimeter Pro's.
长龙航空 ships an update every 2 months, Realtime Altimeter Pro every 22 months. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.
| Parameter | 长龙航空 | Realtime Altimeter Pro |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.0 (2 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 57.4% of reviews | 68.2% of reviews — better |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 2 months — better | Every 22 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 13 |
| Further details — not scored | ||
| Size | 57 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 浙江长龙航空有限公司 | Zhenlai Xia |
Customer experience
长龙航空
Realtime Altimeter Pro
In-app purchases
长龙航空
No in-app purchases
Realtime Altimeter Pro
No in-app purchases
