# Ewater vs evDash OBD2

The clearest difference is in-app purchases: Ewater at none against evDash OBD2's 3. Ewater also leads on iOS requirement (13.0 vs 15.0). evDash OBD2's advantage is update cadence (every 5 days vs every 2 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. evDash OBD2 sells 3 in-app purchases, starting at $2.99 per month. Ewater asks for nothing beyond the download.

Ewater ships an update every 2 months, evDash OBD2 every 5 days. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Ewater | evDash OBD2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/evdash-obd2/id6765950978/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 66 MB | 57 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [红玲 车](https://appshunter.io/developer/1764656419) | [NEXT176](https://appshunter.io/developer/1896137244) |

## What reviewers say

### Ewater

[App page](https://appshunter.io/ios/app/ewater/id1616460455)

**Features:** macOS Compatibility

**In-app purchases:** none


### evDash OBD2

[App page](https://appshunter.io/ios/app/evdash-obd2/id6765950978)

Monitor your electric vehicle's performance with a live dashboard and diagnostic tools. View real-time battery, power, and driving data, and access advanced service functions. Supports a wide range of EVs and OBD2 adapters, with optional Pro features for deeper insights.

**Highlights:** Live EV dashboard, Battery data overview, Cell voltage and temperature monitoring, Apple CarPlay support, Service Menu with ECU scan, Pre-purchase battery check, Acceleration and brake tests

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| evDash Pro Monthly | $2.99 | per month |
| evDash Pro Yearly | $14.99 | per year |
| evDash Pro Lifetime | $39.90 | one-time |


## Frequently asked questions

### Is Ewater free?

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

### Is evDash OBD2 free?

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

### Do Ewater or evDash OBD2 have ads?

Neither Ewater nor evDash OBD2 shows ads.

### Which is updated more often, Ewater or evDash OBD2?

Ewater ships an update every 2 months, and evDash OBD2 every 5 days. Most recently, Ewater was updated on September 30, 2026 and evDash OBD2 on October 14, 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.*