# CorrectAltitude

> Accurate GPS altitude determination and altitude-stamped photography. (iPhone/iPad app by SCSIproShop.)

- Source: https://appshunter.io/ios/app/correctaltitude/id595948623 (this page in markdown: same URL + `.md`)
- Developer: [SCSIproShop](https://appshunter.io/developer/503754671)
- Category: Navigation, Photo & Video
- Price: $0.99
- Age rating: 4+
- Requires: iOS 13.1 · 3 MB
- Languages: American English, Japanese
- Released: 2013-01-31
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/correctaltitude/id595948623/reviews.md

## What is CorrectAltitude?

Correct Altitude establishes your position using data from at least twelve GPS satellites.

This app shows the altitude at your current location, and enables you to take altitude-and-date-stamped photographs.

Hikers usually turn off their iPhones on mountain trails because of the poor signal.
When turned on, the iPhone GPS will try to determine the current location with data from three GPS satellites; however, these co-ordinates are still inaccurate.
CorrectAltitude triangulates position with a large number of GPS satellites in a 5-minute period enabling an accurate determination of altitude.  
The app automatically continues triangulating position by polling GPS satellites, and informs you when it has established a location accurate to within the tolerated range of error.
The default for this range is 5 meters (approximately 16 feet).

As an add-on function, it can display where you are (if the place has a name), and this can be useful for contacting rescue services in emergencies.

CorrectAltitude has been tested on hiking trails in the Himalayas!

Here is an example of an altitude-and-date-stamped photograph.
The photograph is taken at the maximum resolution of your phone's camera and stored. 
GPS information is discarded.

If the Notify mode remains set to "ON", you will continue to get updates on altitude every five minutes. 
To conserve the battery and stop repeated updates, you may prefer to set Notify mode to "OFF" after you have determined your altitude.

## Key features

- Precise altitude determination
- Altitude and date-stamped photos
- Location display for emergencies
- Continuous GPS triangulation
- Adjustable accuracy range
- Notify mode for altitude updates

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/correctaltitude/id595948623/reviews.md

### 1/5 — 全く使えません

*2024-01-28*

Watchでも使えるアプリとのことでしたが、不安定ながらWatchOS9では使えていましたが、10ではUpdate中の表示のままでフリーズします。Watchでは全く動作しません。本当に期待外れなアプリです。 以下はiPhoneでの動作です。GPSのデータを複数使って測定するということで、気圧高度計のように環境に影響されない毎回バッチリ同じ値の測定値を期待したのですが、測定ごとに若干違う数値が出てしまいます。自宅で試してみたところ、住所はドンピシャでした。また、Watchでの測定値とiPhoneでの測定値に10m以上の差が生じることもあります。海抜2,000mでの10mと海抜20m前後の10mでは、誤差的にはかなり違いますね。 できれば、本体の気圧高度計のキャリブレーションなんかもできるようにしてくれるとありがたいですが、Watchででも使えると言う宣伝文句は、事実と異なります。お金払っている価値なしで星0にしたいです。 【2023.12.17追記】 iOS17.2、WatchOS10.2にしたところ、AppleWatchでもしっかり使えるようになってました。このアプリ自体はアップデートされていないので、OS側に何かの原因があったのか… そこはよくわかりませんが、とりあえず使えるようになりました。 ただ、iPhoneとWatchの測定高度にはかなり開きがあります。どっちが本当の高度なのかわかりません。 【2024.1.28追記】 iOS17.3、WatchOS10.3になったら、またWatch側で位置情報取得できなくなってます。 全く使えません。 お金返して欲しいくらいです。 星1つもつけたくない。

### 1/5 — apple watch で使えない

*2023-06-28*

期待して購入しましたが、場所をさまざま移動しても、値が一日中変更されません。また、iphone本体とのコネクトが成立せず、値も反映されません。
料金を返して欲しいです。星、ゼロにしたいです。
もし、使えるのであれば、操作方法を詳しく解説してください。
iOS16, iPhone14, apple watch 7 cellularでの使用環境です。

**Developer response:** Watch画面長押しで 、Updating表示されます。よろしくお願いします

### 1/5 — 正確度無し

*2013-07-23*

タップする都度に、高度が変わります。

## Frequently asked questions about CorrectAltitude

### What is the main function of CorrectAltitude?

CorrectAltitude's primary function is to provide accurate altitude readings at your current location by triangulating data from multiple GPS satellites. It also allows you to take photos that are stamped with the altitude and date.

### How accurate is CorrectAltitude?

The app aims for an accuracy within a tolerated range of error, with a default of 5 meters (approximately 16 feet). It achieves this by triangulating position with a large number of GPS satellites over a 5-minute period.

### Can CorrectAltitude help in emergencies?

Yes, as an add-on function, CorrectAltitude can display your current location if the place has a name. This information can be useful for contacting rescue services in emergency situations.

### Does CorrectAltitude work offline?

The app relies on GPS satellite data for its core functionality, which generally works even in areas with poor cellular signal. However, the ability to display named locations might depend on available mapping data.

### How does CorrectAltitude conserve battery?

You can conserve battery by setting the Notify mode to 'OFF' after you have determined your altitude. If left 'ON', you will receive altitude updates every five minutes.

### What devices is CorrectAltitude compatible with?

CorrectAltitude is compatible with iPhone, iPod, and Apple Watch devices.

### When was CorrectAltitude last updated?

The latest version of CorrectAltitude was released on September 3, 2024, indicating active development and maintenance.

### What is the price of CorrectAltitude?

CorrectAltitude is a paid application, available for $0.99.

## Version history (last 5 releases)

### 1.11.0 — 2024-09-03

iOS 17.6 Support
WatchOS 10.6 Support

### 1.10.0 — 2022-01-20

Dark Mode Support
iOS 15.2 Support

### 1.9.0 — 2021-10-25

iOS 15.0 support

### 1.8.0 — 2020-04-04

Support iOS 13.3

### 1.7.0 — 2019-08-09

Replace Weather Information site.
Support iOS 12.4

## Apps similar to CorrectAltitude

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| --- | --- | --- | --- |
| [標高ミエール](https://appshunter.io/ios/app/id1660748152) | — | Free | Navigation |
| [コマツアー](https://appshunter.io/ios/app/id1580547880) | — | Free | Navigation |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*