Realtime Altimeter vs 古迹寻声
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Realtime Altimeter
This app provides real-time altitude readings, even without an internet connection. It also includes a compass, velocimeter, and a camera that can watermark photos with location data, making it ideal for travelers and outdoor adventurers.
- Offline altimeter
- Real-time altitude
- Integrated compass
- Velocimeter for speed
- Watermark camera with GPS data
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Check your real-time altitude even without network, Must-have App for travel. 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.
古迹寻声
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囊括故宫所有核心景点，只需打开导览图，一边走一边听，领略宫墙内的厚重历史和秘辛往事。 操作说明：点击名称播放，再次点击暂停。双击复位图形位置和大小。 本应用是一款由本人独立开发的第三方导览应用，专注于提供丰富的文化遗产讲解体验。本应用与故宫博物院无任何官方关联。
Screenshots
Verdict
The clearest difference is price: Realtime Altimeter at Free against 古迹寻声's $0.99. Realtime Altimeter also leads on iOS requirement (13 vs 15.2). 古迹寻声's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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
Realtime Altimeter is free to download; 古迹寻声 costs $0.99 up front. Realtime Altimeter sells 1 one-off in-app purchase. 古迹寻声 asks for nothing beyond the download.
Realtime Altimeter ships an update every 2 weeks, 古迹寻声 every 2 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.
| Parameter | Realtime Altimeter | 古迹寻声 |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (403 ratings) — better | — |
| Positive reviews | 76.9% of reviews | — |
| Number of ratings | 403 — better | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 — better | 15.2 |
| Further details — not scored | ||
| Size | 6 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Zhenlai Xia | 恩粉 杨 |
Bugs and requests
Realtime Altimeter
Reported bugs
5 issues- Compass missing cardinal points
- Inaccurate barometric pressure readings
- Fluctuating and inaccurate altitude readings
- Watch app not installing after purchase
- Altimeter not working during flight
Requested features
7 requests- Announce current altitude based on time or altitude
- Larger font size for speed readout
- Option to switch altitude and speed display positions
- Convert camera location address to text
- Add barometric pressure display
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- Display altitude gain per hour for hiking
- MPH unit for velocity
古迹寻声
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Realtime Altimeter
- Remove Ads$1.99
古迹寻声
No in-app purchases
