# OBD2 Gauges vs OpenSurvey3D

The clearest difference is in-app purchases: OpenSurvey3D at none against OBD2 Gauges's 2. OBD2 Gauges's advantage is update cadence (every 3 days vs every 3 weeks) and iOS requirement (16.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. OBD2 Gauges sells 2 in-app purchases, starting at $3.99 per month. OpenSurvey3D asks for nothing beyond the download.

OBD2 Gauges ships an update every 3 days, OpenSurvey3D every 3 weeks. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | OBD2 Gauges | OpenSurvey3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 52 MB | 20 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Edward Williams](https://appshunter.io/developer/1639798187) | [Laan Labs](https://appshunter.io/developer/310916919) |

## What reviewers say

### OBD2 Gauges

[App page](https://appshunter.io/ios/app/obd2-gauges/id6759607610)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $3.99 | per month |
| Remove Ads (Lifetime) | $24.99 | one-time |


### OpenSurvey3D

[App page](https://appshunter.io/ios/app/opensurvey3d/id6794840161)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBD2 Gauges free?

OBD2 Gauges is free to download, with in-app purchases available.

### Is OpenSurvey3D free?

OpenSurvey3D is free to download, with no in-app purchases.

### Do OBD2 Gauges or OpenSurvey3D have ads?

Neither OBD2 Gauges nor OpenSurvey3D shows ads.

### Which is updated more often, OBD2 Gauges or OpenSurvey3D?

OBD2 Gauges ships an update every 3 days, and OpenSurvey3D every 3 weeks. Most recently, OBD2 Gauges was updated on October 9, 2026 and OpenSurvey3D 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.*