GNSS Circuit Logger vs GPS Lap Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GNSS Circuit Logger
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.
- GNSS lap timer for circuit driving
- BLE device compatibility (LNS and QSTARZ protocols)
- CSV, NMEA, GPX lap time output
- Data logging for circuit racing
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It’s a lap timer app for circuit driving that uses GNSS. Compatible with BLE devices (GL-770) that support the LNS protocol and BLE devices (BL-1000GT, BL-818GT, BL-1000ST) that support the QSTARZ protocol. CSV NMEA GPX output function for lap time.
GPS Lap Timer
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.
- 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
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• "GPS Lap Timer" is a lap timer app for racing circuits that utilizes the iPhone's GPS function. • Easily and accurately measure lap times and sector times using only your iPhone. No external GPS receiver is required. • The accuracy of a GPS lap timer is not determined solely by the GPS update frequency. This app achieves highly accurate lap time measurement through its unique measurement logic. • Approximately 10,000 measured lap times are saved and can be viewed and shared. • Enjoy a fulfilling racing life with this app! (How to use) Please see "https://gpslaptimer.blogspot.com/2026/08/gps-lap-timer-free-ios-app.html”. (Measurable circuits) Planned to be added. Please let us know if you have any requests. Please also report any bugs or issues. (Australia) Sydney Motorsport Park (Brabham, Gardner GP, Druitt North) Sydney Motorsport Park Amaroo South (France) Circuit Paul Ricard (Gernany) Nürburgring Nordschleife Nürburgring Nordschleife (BTG) (Japan) Please see “https://gpslaptimer.blogspot.com/2026/08/list-of-japanese-circuits.html”. (Malaysia) Sepang International Circuit (Taiwan) Lihpao G2 Circuit (Thailand) Chang International Circuit (United Kingdom) Oulton Park Circuit Silverstone International Circuit Silverstone Grand Prix Circuit Silverstone Stowe Circuit Silverstone National Circuit Donington Park Circuit Brands Hatch GP Circuit Brands Hatch Indy Circuit (United States) Blackhawk Farms Raceway BRP Kart CCW1 BRP Kart CW1 BRP Race CCW1 BRP Race CW1 BRP Race CCW2 BRP Race CW2 BRP The Circuit CCW (Buttonwillow Raceway Park) BRP The Circuit CW (Buttonwillow Raceway Park) Laguna Seca Road America Sebring Raceway GP Road Course Sonoma Raceway Summit Point Motorsports Park (Main) Summit Point (Jefferson Circuit CCW) Summit Point (Shenandoah Circuit CCW) VIR Grand∙Full Course VIR North Course VIR South Course VIR Patriot Course Waterford Hills Road Racing The developer assumes no responsibility for any accident, violation, loss or claims by third parties which may arise from the use of this app. Terms of Use: This application is provided under the Apple Standard End User License Agreement (EULA). https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: GNSS Circuit Logger at none against GPS Lap Timer's 3. GNSS Circuit Logger also leads on review sentiment (78% vs 62%) and iOS requirement (10.3 vs 15.0). GPS Lap Timer's advantage is update cadence (every 4 days vs every 11 days). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GPS Lap Timer sells 3 in-app purchases, starting at $3.99 per 3 months. GNSS Circuit Logger asks for nothing beyond the download.
GNSS Circuit Logger ships an update every 11 days, GPS Lap Timer every 4 days. The most recent releases landed on July 5, 2026 and September 20, 2026 respectively.
| Parameter | GNSS Circuit Logger | GPS Lap Timer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 77.8% of reviews — better | 61.9% of reviews |
| Update frequency | Every 11 days | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuji Kanda | Takao Ichimura |
Customer experience
GNSS Circuit Logger
GPS Lap Timer
In-app purchases
GNSS Circuit Logger
No in-app purchases
GPS Lap Timer
- Unlimited Measurements$3.993 Months
- Unlimited Measurements$5.991 Year
- Unlimited measurements$9.99
Questions
Is GNSS Circuit Logger free?
Is GPS Lap Timer free?
Do GNSS Circuit Logger or GPS Lap Timer have ads?
Which is updated more often, GNSS Circuit Logger or GPS Lap Timer?
Other comparisons
