# Altimeter vs iDive

The clearest difference is in-app purchases: iDive at none against Altimeter's 7. iDive also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Altimeter sells 7 in-app purchases, starting at $9.99 per 7 days. iDive asks for nothing beyond the download.

Altimeter ships an update every 4 months, iDive every 3 weeks. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Altimeter | iDive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8.5K ratings)](https://appshunter.io/ios/app/altimeter-altitude-and-compass/id1295577015/reviews)** | — |
| Number of ratings | **8.5K** | — |
| Positive reviews | 58.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 53 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Gaurav Babbar](https://appshunter.io/developer/1033155710) | [庆西 胡](https://appshunter.io/developer/1692039930) |

## What reviewers say

### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-altitude-and-compass/id1295577015)

This app provides real-time altitude, atmospheric pressure, and location data. It includes a compass, speedometer, pedometer, weather updates, and tools like binoculars, a flashlight, and SOS functionality for outdoor activities and daily use.

**Highlights:** Real-time altimeter and barometer, GPS compass and speedometer, Pedometer and step counter, Weather updates and 2-week forecast, Digital binoculars and flashlight, SOS function with coordinates, Map tracking and location marking

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Altimeter Pro Weekly Subscription | $9.99 | per 7 days |
| Altimeter Pro Annual Subscription | $49.99 | per year |
| Altimeter Weather Pro | $1.99 | one-time |
| Altimeter Binoculars Pro | $1.99 | one-time |
| Altimeter Map Pro | $2.99 | one-time |
| Altimeter Pedometer Pro | $2.99 | one-time |
| Altimeter Pro | $99.99 | one-time |

**What reviewers like**

- 🚀 Useful features
- 👍 Clean and simple interface
- 🚀 Comprehensive functionality
- 👍 Accurate altimeter and compass
- 👍 Helpful for hiking and outdoor activities

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 🔒 Unreliable in-app purchases and upgrades
- 🔒 Ads still displayed despite paid upgrades
- 🔒 Inconsistent unit conversions
- 🐛 Inaccurate weather and location data

**Reported bugs**

- Compass not working correctly in certain regions
- Pedometer not recording steps accurately
- Paid upgrades not unlocking all pro features
- Frequent app crashes and freezes
- Settings not saving properly

**Requested features**

- Option to adjust step length
- Ability to track past distance/activity data
- Apple Watch support
- More customization options
- Improved weather forecasting


### iDive

[App page](https://appshunter.io/ios/app/idive/id6475000764)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Altimeter free?

Altimeter is free to download, with in-app purchases available.

### Is iDive free?

iDive is free to download, with no in-app purchases.

### Do Altimeter or iDive have ads?

Altimeter shows ads; iDive does not.

### Which is updated more often, Altimeter or iDive?

Altimeter ships an update every 4 months, and iDive every 3 weeks. Most recently, Altimeter was updated on November 5, 2026 and iDive on November 4, 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.*