# Defi Meter C vs GPS Lap Timer

The clearest difference is review sentiment: GPS Lap Timer at 62% against Defi Meter C's 20%. GPS Lap Timer also leads on update cadence (every 6 days vs every 5 weeks). Defi Meter C's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. GPS Lap Timer sells 3 in-app purchases, starting at $3.99 per 3 months. Defi Meter C asks for nothing beyond the download.

Defi Meter C ships an update every 5 weeks, GPS Lap Timer every 6 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Defi Meter C | GPS Lap Timer |
| --- | --- | --- |
| 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 | **61.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 8 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Defi](https://appshunter.io/developer/887419342) | [Takao Ichimura](https://appshunter.io/developer/1474061593) |

## 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


### GPS Lap Timer

[App page](https://appshunter.io/ios/app/gps-lap-timer/id1666125803)

Accurately measure lap and sector times for race tracks using your iPhone's GPS.  This app employs proprietary algorithms for precise timing without external receivers. It saves approximately 10,000 laps and supports numerous circuits worldwide.

**Highlights:** Accurate lap and sector timing, Uses iPhone GPS, Proprietary measurement algorithms, Saves up to 10,000 laps, Supports numerous global circuits, Stand-by mode for pocket use

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Measurements | $3.99 | per 3 months |
| Unlimited Measurements | $5.99 | per year |
| Unlimited measurements | $9.99 | one-time |


## Frequently asked questions

### Is Defi Meter C free?

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

### Is GPS Lap Timer free?

GPS Lap Timer is free to download, with in-app purchases available.

### Do Defi Meter C or GPS Lap Timer have ads?

GPS Lap Timer shows ads; Defi Meter C does not.

### Which is updated more often, Defi Meter C or GPS Lap Timer?

Defi Meter C ships an update every 5 weeks, and GPS Lap Timer every 6 days. Most recently, Defi Meter C was updated on October 8, 2026 and GPS Lap Timer on October 16, 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.*