# AltitudeNowPro — Barometer & mountain log

> Barometer & mountain log (iPhone/iPad app by Hao Sun.)

- Source: https://appshunter.io/ios/app/altitudenowpro/id6765668577 (this page in markdown: same URL + `.md`)
- Developer: [Hao Sun](https://appshunter.io/developer/1896030287)
- Category: Health & Fitness, Weather
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-08-24
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/altitudenowpro/id6765668577/reviews.md

## What is AltitudeNowPro?

AltitudeNow is a focused barometric altimeter and elevation-session logger built around one job: showing how your altitude changes as you move.

LIVE ALTITUDE, WITHOUT GPS
• Relative altitude from the device's built-in barometric pressure sensor
• Live atmospheric pressure in hPa or inHg
• A real-time altitude chart while a session is recording
• Motion access is used for the barometric sensor; your recorded sessions stay on-device

RECORD CLIMBS AND ELEVATION CHANGES
• Start and stop named altitude sessions
• Review minimum altitude, maximum altitude, elevation gain, duration, and readings
• Free users can browse their 3 most recent sessions
• Premium unlocks unlimited session history, detailed session charts, CSV export, and calibration

BUILT FOR MOUNTAIN USE
• Pick from a built-in Japanese mountain reference list when naming or calibrating a session
• Save favorite mountains for faster session setup
• Compare recorded elevation changes with familiar peak references
• Apply a calibration offset when you know the reference altitude

PRIVATE BY DESIGN
• No account
• No advertising or analytics SDKs
• No developer-operated cloud sync
• No GPS required for the core altitude recorder
• Delete the app and there is no AltitudeNow cloud copy left behind

PREMIUM — ONE-TIME PURCHASE
• Unlimited session history
• Detailed altitude charts for every saved session
• CSV export
• Custom calibration offset

No subscription.

REQUIREMENTS
Requires iOS 17 or later and a supported phone with a built-in barometric pressure sensor. Devices without that sensor show a clear unsupported-device screen instead of fake readings.

AltitudeNow is an informational elevation tool, not a certified navigation, aviation, emergency, or safety instrument.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| AltitudeNow Premium | $2.99 | one-time |



## Version history (last 1 release)

### 1.0.6 — 2026-08-24

No release notes.

## More apps by Hao Sun

- [AutoChoice](https://appshunter.io/ios/app/autochoice/id6765667062)
- [PromptVaultPro](https://appshunter.io/ios/app/promptvaultpro/id6765668776)
- [NewDaysUntil](https://appshunter.io/ios/app/newdaysuntil/id6765669356)
- [TipJar Now](https://appshunter.io/ios/app/tipjar-now/id6770249058)
- [WaterNow](https://appshunter.io/ios/app/waternow/id6770249191)

All apps by Hao Sun: https://appshunter.io/developer/1896030287

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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.*