# EVcheck vs CSON

The clearest difference is update cadence: CSON at every 3 days against EVcheck's every 3 weeks. CSON also leads on iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support 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, CSON every 3 days. The most recent releases landed on September 29, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | EVcheck | CSON |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 112 MB | 30 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 17+ |
| Developer | [Betterwhy Co.Ltd](https://appshunter.io/developer/1701533540) | [Chankook Na](https://appshunter.io/developer/1718842206) |

## 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


### CSON

[App page](https://appshunter.io/ios/app/cson/id6746245690)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EVcheck free?

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

### Is CSON free?

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

### Do EVcheck or CSON have ads?

Neither EVcheck nor CSON shows ads.

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

EVcheck ships an update every 3 weeks, and CSON every 3 days. Most recently, EVcheck was updated on September 29, 2026 and CSON on October 12, 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.*