# Altitude Checker vs WT01設定

The clearest difference is in-app purchases: WT01設定 at none against Altitude Checker's 1. WT01設定 also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Altitude Checker sells 1 one-off in-app purchase. WT01設定 asks for nothing beyond the download.

Altitude Checker ships an update every 4 months, WT01設定 every 8 months. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Altitude Checker | WT01設定 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/altitude-checker/id635168846/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 82.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 282 MB | 12 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takafumi AMANO](https://appshunter.io/developer/581065340) | [Advanced Media,Inc](https://appshunter.io/developer/292499983) |

## What reviewers say

### Altitude Checker

[App page](https://appshunter.io/ios/app/altitude-checker/id635168846)

Measure altitude using your device's location or by selecting points on a map. Offers various measurement modes and customizable settings for units, datums, and coordinate systems. Includes an option to display addresses or coordinates.

**Highlights:** Map Measurement Mode, GNSS Mode, Digital Elevation Model (DEM) data, Unit selection (Meter/Foot), Special Datum options, Coordinate System selection, Address/Coordinate display

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### WT01設定

[App page](https://appshunter.io/ios/app/wt01/id1184717342)

**In-app purchases:** none


## Frequently asked questions

### Is Altitude Checker free?

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

### Is WT01設定 free?

WT01設定 is free to download, with no in-app purchases.

### Do Altitude Checker or WT01設定 have ads?

Altitude Checker shows ads; WT01設定 does not.

### Which is updated more often, Altitude Checker or WT01設定?

Altitude Checker ships an update every 4 months, and WT01設定 every 8 months. Most recently, Altitude Checker was updated on October 12, 2026 and WT01設定 on October 11, 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.*