# GNSS Circuit Logger vs RALLYSTREAM Tracking

The clearest difference is ads: RALLYSTREAM Tracking at none against GNSS Circuit Logger's shown. GNSS Circuit Logger's advantage is update cadence (every 11 days vs every 6 weeks) and iOS requirement (10.3 vs 15.0). On price, 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.

GNSS Circuit Logger ships an update every 11 days, RALLYSTREAM Tracking every 6 weeks. The most recent releases landed on October 2, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | GNSS Circuit Logger | RALLYSTREAM Tracking |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | Ad-supported | — |
| Size | 14 MB | 2 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuji Kanda](https://appshunter.io/developer/1244419770) | [RallyStream inc.](https://appshunter.io/developer/1458587036) |

## What reviewers say

### GNSS Circuit Logger

[App page](https://appshunter.io/ios/app/gnss-circuit-logger/id1435155551)

This application functions as a lap timer for circuit driving, utilizing GNSS technology. It supports various BLE devices for data logging and offers CSV, NMEA, and GPX output formats for lap times.

**Highlights:** GNSS lap timer for circuit driving, BLE device compatibility (LNS and QSTARZ protocols), CSV, NMEA, GPX lap time output, Data logging for circuit racing

**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 GNSS Circuit Logger free?

GNSS Circuit Logger 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 GNSS Circuit Logger or RALLYSTREAM Tracking have ads?

GNSS Circuit Logger shows ads; RALLYSTREAM Tracking does not.

### Which is updated more often, GNSS Circuit Logger or RALLYSTREAM Tracking?

GNSS Circuit Logger ships an update every 11 days, and RALLYSTREAM Tracking every 6 weeks. Most recently, GNSS Circuit Logger was updated on October 2, 2026 and RALLYSTREAM Tracking on October 26, 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.*