# Stardater vs OpenOBD

The clearest difference is price: OpenOBD at Free against Stardater's $1.99. OpenOBD also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (16.4 vs 26.1). On ads, in-app purchases and device support there is nothing between them.

OpenOBD is free to download; Stardater costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stardater ships an update every 3 weeks, OpenOBD every 2 days. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Stardater | OpenOBD |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/openobd-live-car-data/id6780283561/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 3 MB | 36 MB |
| Requires iOS | 26.1 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Schmaldinst](https://appshunter.io/developer/1884357874) | [Osman Cengeri](https://appshunter.io/developer/1807592099) |

## What reviewers say

### Stardater

[App page](https://appshunter.io/ios/app/stardater/id6760417723)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### OpenOBD

[App page](https://appshunter.io/ios/app/openobd-live-car-data/id6780283561)

Transform your iPhone into a real-time car dashboard. Connect an OBD2 adapter to monitor live engine data, track your trips with GPS, and diagnose fault codes with clear explanations. Explore all features in demo mode without hardware.

**Highlights:** Live engine data monitoring, Real-time speed, RPM, temperature gauges, Trip logging with GPS mapping, Read and clear diagnostic trouble codes (DTCs), Vehicle information display, Demo mode for exploration

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

**In-app purchases:** none


## Frequently asked questions

### Is Stardater free?

Stardater costs $1.99, with no in-app purchases.

### Is OpenOBD free?

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

### Do Stardater or OpenOBD have ads?

Neither Stardater nor OpenOBD shows ads.

### Which is updated more often, Stardater or OpenOBD?

Stardater ships an update every 3 weeks, and OpenOBD every 2 days. Most recently, Stardater was updated on October 6, 2026 and OpenOBD on October 13, 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.*