# Devim GPS vs Tree Height Meter

The clearest difference is in-app purchases: Tree Height Meter at none against Devim GPS's 1. Tree Height Meter also leads on update cadence (every 2 days vs every 4 weeks). Devim GPS's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Devim GPS sells 1 one-off in-app purchase. Tree Height Meter asks for nothing beyond the download.

Devim GPS ships an update every 4 weeks, Tree Height Meter every 2 days. Both last shipped on September 9, 2026.

## The numbers

| Metric | Devim GPS | Tree Height Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/devim-gps-0-60-and-drag-timer/id6761691878/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 51 MB |
| Requires iOS | 17.2 | **16.4** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [KEMAL UTKU LEKESIZ](https://appshunter.io/developer/1890818212) | [heekyung moon](https://appshunter.io/developer/6779193748) |

## What reviewers say

### Devim GPS

[App page](https://appshunter.io/ios/app/devim-gps-0-60-and-drag-timer/id6761691878)

This app measures vehicle acceleration and distance using your iPhone's GPS or an OBD-II adapter. Analyze detailed run data, compare performance, and organize results by vehicle. An Apple Watch companion app is also included.

**Highlights:** 0-60 mph and custom speed range timing, Distance measurement (1/4 mile, 1 mile, etc.), Automatic standing-start detection, GPS and BLE OBD-II adapter support, Detailed run analysis (graphs, splits, G-force), Apple Watch companion app, Vehicle profile organization

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Devim GPS Pro | $9.99 | one-time |


### Tree Height Meter

[App page](https://appshunter.io/ios/app/tree-height-meter/id6784830694)

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

**In-app purchases:** none


## Frequently asked questions

### Is Devim GPS free?

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

### Is Tree Height Meter free?

Tree Height Meter is free to download, with no in-app purchases.

### Do Devim GPS or Tree Height Meter have ads?

Tree Height Meter shows ads; Devim GPS does not.

### Which is updated more often, Devim GPS or Tree Height Meter?

Devim GPS ships an update every 4 weeks, and Tree Height Meter every 2 days. Most recently, Devim GPS was updated on September 9, 2026 and Tree Height Meter on September 9, 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.*