# TrackDay for iPhone vs GPS Lap Timer

The clearest difference is price: GPS Lap Timer at Free against TrackDay for iPhone's $4.99. GPS Lap Timer also leads on update cadence (every 6 days vs every 2 months) and review sentiment (62% vs 38%). TrackDay for iPhone's advantage is ads (none vs shown). On in-app purchases, monetization model and iOS requirement there is nothing between them.

GPS Lap Timer is free to download; TrackDay for iPhone costs $4.99 up front. TrackDay for iPhone sells 12 one-off in-app purchases and GPS Lap Timer sells 3 in-app purchases, starting at $3.99 per 3 months. Whichever you choose, the download price is not the number that matters.

TrackDay for iPhone ships an update every 2 months, GPS Lap Timer every 6 days. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | TrackDay for iPhone | GPS Lap Timer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (17 ratings)](https://appshunter.io/ios/app/trackday-for-iphone/id523627374/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 37.9% of reviews | **61.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 19 MB | 8 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FTLapps LLC](https://appshunter.io/developer/495035070) | [Takao Ichimura](https://appshunter.io/developer/1474061593) |

## What reviewers say

### TrackDay for iPhone

[App page](https://appshunter.io/ios/app/trackday-for-iphone/id523627374)

This app records your track day sessions, automatically computing lap times and analyzing performance. It offers real-time data display and detailed post-session analysis, with a vast library of global tracks.

**Highlights:** Automatic lap time computation, Real-time lap and sector times, Post-session analysis, Track raceline visualization, Extensive track library, Custom track learning

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mazda Raceway Laguna Seca | $0.99 | one-time |
| Willow Springs | $0.99 | one-time |
| NJMP Thunder Raceway | $0.99 | one-time |
| Buttonwillow Raceway configuration 13 CW | $0.99 | one-time |
| Thunderhill Raceway Park | $0.99 | one-time |
| Palm Beach International Raceway | $0.99 | one-time |
| Willow Springs Streets of Willow Springs | $0.99 | one-time |
| Chuckwalla Valley Raceway | $0.99 | one-time |
| Sebring International Raceway | $0.99 | one-time |
| Circuit of the Americas | $0.99 | one-time |
| Jennings GP | $0.99 | one-time |
| Track Learning | $2.99 | one-time |


### 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 TrackDay for iPhone free?

TrackDay for iPhone costs $4.99, and also offers in-app purchases.

### Is GPS Lap Timer free?

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

### Do TrackDay for iPhone or GPS Lap Timer have ads?

GPS Lap Timer shows ads; TrackDay for iPhone does not.

### Which is updated more often, TrackDay for iPhone or GPS Lap Timer?

TrackDay for iPhone ships an update every 2 months, and GPS Lap Timer every 6 days. Most recently, TrackDay for iPhone was updated on September 23, 2026 and GPS Lap Timer on September 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.*