# Altimeter vs ikey

The clearest difference is price: ikey at Free against Altimeter's $0.99. ikey also leads on iOS requirement (16.0 vs 26.0). Altimeter's advantage is in-app purchases (none vs 3). On ads and device support there is nothing between them.

ikey is free to download; Altimeter costs $0.99 up front. ikey sells 3 in-app purchases, starting at $1.99 per year. Altimeter asks for nothing beyond the download.

## The numbers

| Metric | Altimeter | ikey |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 8 days |
| Monetization | — | Freemium |
| Size | 46 MB | 13 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [晋坤 张](https://appshunter.io/developer/1880866815) | [育权 刘](https://appshunter.io/developer/1782631468) |

## What reviewers say

### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-elevation-check-in/id6759822396)

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

**In-app purchases:** none


### ikey

[App page](https://appshunter.io/ios/app/ikey/id6779347213)

This app securely manages your accounts and passwords locally on your device. It offers features like biometric protection, clear organization with categories and tags, and a password generator. Upgrade for advanced features like iCloud sync and data export.

**Highlights:** Local account management, Biometric security (Face ID/Touch ID), Account categorization and tagging, Password generation, Customizable icons, Attachment support, iCloud synchronization (member), Data export/import (member)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ikey会员一年订阅 | $1.99 | per year |
| ikey永久会员优惠价 | $2.99 | one-time |
| ikey永久会员 | $3.99 | one-time |


## Frequently asked questions

### Is Altimeter free?

Altimeter costs $0.99, with no in-app purchases.

### Is ikey free?

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

### Do Altimeter or ikey have ads?

Neither Altimeter nor ikey shows ads.

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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.*