# EVcheck vs KeyPlus3

The clearest difference is iOS requirement: KeyPlus3 at 15.0 against EVcheck's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EVcheck ships an update every 3 weeks, KeyPlus3 every 2 weeks. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | EVcheck | KeyPlus3 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 112 MB | 35 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Betterwhy Co.Ltd](https://appshunter.io/developer/1701533540) | [Special One Co., Ltd.](https://appshunter.io/developer/1521605263) |

## What reviewers say

### EVcheck

[App page](https://appshunter.io/ios/app/evcheck/id6458878510)

This app diagnoses electric vehicle battery health in real-time using OBD2 data. It monitors battery aging, stress, and cell anomalies, providing results via smartphone and device indicators. Additional features include pedal mode display and energy efficiency diagnostics.

**Highlights:** Real-time battery diagnostics, Battery aging and stress monitoring, Pedal mode display, Energy efficiency diagnosis, Cell anomaly detection, Cloud-based data analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### KeyPlus3

[App page](https://appshunter.io/ios/app/keyplus3-digital-key/id6747149011)

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

**In-app purchases:** none


## Frequently asked questions

### Is EVcheck free?

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

### Is KeyPlus3 free?

KeyPlus3 is free to download, with no in-app purchases.

### Do EVcheck or KeyPlus3 have ads?

Neither EVcheck nor KeyPlus3 shows ads.

### Which is updated more often, EVcheck or KeyPlus3?

EVcheck ships an update every 3 weeks, and KeyPlus3 every 2 weeks. Most recently, EVcheck was updated on September 29, 2026 and KeyPlus3 on October 10, 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.*