# Defi Meter C vs RALLYSTREAM Tracking

The clearest difference is iOS requirement: Defi Meter C at 8.0 against RALLYSTREAM Tracking's 15.0. 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.

Defi Meter C ships an update every 5 weeks, RALLYSTREAM Tracking every 6 weeks. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Defi Meter C | RALLYSTREAM Tracking |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 6 MB | 2 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) | [RallyStream inc.](https://appshunter.io/developer/1458587036) |

## 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


### RALLYSTREAM Tracking

[App page](https://appshunter.io/ios/app/rallystream-tracking/id1484608748)

**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 RALLYSTREAM Tracking free?

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

### Do Defi Meter C or RALLYSTREAM Tracking have ads?

Neither Defi Meter C nor RALLYSTREAM Tracking shows ads.

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

Defi Meter C ships an update every 5 weeks, and RALLYSTREAM Tracking every 6 weeks. Most recently, Defi Meter C was updated on October 8, 2026 and RALLYSTREAM Tracking 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.*