# Defi Meter C vs QUAD

The clearest difference is review sentiment: QUAD at 100% against Defi Meter C's 20%. QUAD also leads on update cadence (every 2 weeks vs every 5 weeks). Defi Meter C's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (8.0 vs 15.1). 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.

Defi Meter C ships an update every 5 weeks, QUAD every 2 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Defi Meter C | QUAD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/defi-meter-c/id887419339/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 20.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 49 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Defi](https://appshunter.io/developer/887419342) | [SYNSETECH LTD](https://appshunter.io/developer/6792617372) |

## What reviewers say

### Defi Meter C

[App page](https://appshunter.io/ios/app/defi-meter-c/id887419339)

Connects to the Defi Smart Adapter W via Bluetooth to display vehicle data from ADVANCE Control Unit or OBD on your iOS device. View various sensor readings like speed, RPM, and temperature in analog or digital formats.

**Highlights:** Bluetooth connectivity, Displays vehicle sensor data, Analog and digital meter views, Customizable meter styles, Supports various sensor readings

**Features:** macOS Compatibility

**In-app purchases:** none


### QUAD

[App page](https://appshunter.io/ios/app/quad-g-forcemeter-laptimer/id6792617370)

This app uses your phone's sensors and GPS to provide real-time lap timing, sector splits, and vehicle dynamics data like G-forces and four-wheel weight transfer. It also includes a data logger for post-drive analysis and alerts for understeer and oversteer.

**Highlights:** GPS lap and sector timing, Four-wheel load monitoring, Real-time G-G diagram, Understeer/oversteer alerts, Data logging and playback, Customizable UI themes and units

**In-app purchases:** none


## Frequently asked questions

### Is Defi Meter C free?

Defi Meter C is free to download, with no in-app purchases.

### Is QUAD free?

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

### Do Defi Meter C or QUAD have ads?

Neither Defi Meter C nor QUAD shows ads.

### Which is updated more often, Defi Meter C or QUAD?

Defi Meter C ships an update every 5 weeks, and QUAD every 2 weeks. Most recently, Defi Meter C was updated on October 26, 2026 and QUAD on October 25, 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.*