Is RaceRender better than Stamptivity?

For motorsport and track day videos, RaceRender is the stronger tool — it handles OBD-II data, G-force, lap timing, and has motorsport-specific gauge styles. For cycling, running, hiking, and skiing, Stamptivity Overlay is better — it's free with no watermark, works in a browser on any OS, and is built for sports GPS data from watches and cycling computers.

RaceRender has a free tier, but it adds a watermark to exported videos. The paid version (approximately $40) removes the watermark and unlocks additional features. Stamptivity Overlay is fully free with no watermark.

Does RaceRender work on Mac?

No. RaceRender is a Windows-only application. If you're on Mac, Stamptivity Overlay (browser-based) or Garmin VIRB Edit are the main alternatives.

Can Stamptivity Overlay be used for motorsport?

Stamptivity can display GPS speed, elevation, and map from any GPX or FIT file — including files from GPS devices used in motorsport (e.g., a Garmin watch or phone). However, it does not support OBD-II engine data, G-force meters, or lap timing, which are core motorsport overlay features in RaceRender.

Does Stamptivity add a watermark?

No. Stamptivity Overlay is completely free with no watermark on any export.

Stamptivity vs RaceRender: Which GPS Overlay Tool Is Right for You?

Stamptivity Overlay and RaceRender both put data gauges on video. But the similarity mostly ends there — they serve different audiences, handle different data sources, and run on different platforms.

Here's the honest side-by-side to help you pick the right one.

Who Each Tool Is Built For

RaceRender is built for motorsport: track day drivers, karting, amateur circuit racing, and anyone who wants G-force meters, lap timing, sector splits, and OBD-II engine data overlaid on dashcam or helmet cam footage.

Stamptivity Overlay is built for endurance sports: cycling, running, hiking, skiing, and triathlon. Data comes from GPS watches and cycling computers — Garmin, Wahoo, Polar, Coros — via GPX or FIT files.

If you're doing motorsport, RaceRender (paid) is the better fit. If you're doing sports, Stamptivity is the better fit. The comparison matters most when someone is deciding between them without a clear activity category in mind.

Head-to-Head

Platform

RaceRender: Windows only.

Stamptivity: Browser-based — works on Windows, Mac, and Linux with no install.

Winner: Stamptivity for anyone not on Windows.

Price

RaceRender: Free tier with watermark. Paid version (~$40 one-time) removes watermark and unlocks features.

Stamptivity: Completely free, no watermark, no paid tier.

Winner: Stamptivity on price.

Data Sources

RaceRender:

GPS data from standard GPS devices
OBD-II port (car engine data: RPM, throttle, boost pressure)
G-force from compatible loggers
Lap timing data from track loggers
AiM, Race Technology data logger support

Stamptivity:

GPX files from any GPS device or tracking platform
FIT files from Garmin, Wahoo, Polar, Coros
Strava import (direct OAuth)

Winner for sports athletes: Stamptivity. Winner for motorsport: RaceRender.

Gauge Types

RaceRender:

G-force meter (X/Y acceleration)
Lap timer, sector splits
RPM, throttle, brake (OBD-II)
Speed, GPS map, elevation
Steering angle (with compatible hardware)

Stamptivity:

Speed, pace
Heart rate
Elevation + elevation chart
Cadence
Power (via FIT)
GPS moving map

Winner depends on use case: Motorsport → RaceRender. Endurance sports → Stamptivity.

Heart Rate Support

RaceRender: Not a primary feature. Heart rate support exists but requires compatible HR input — not typical for track day drivers.

Stamptivity: Core feature. Load a FIT file with HR recorded from a chest strap or watch HRM. HR gauge populates automatically.

Winner for sports: Stamptivity.

Gauge Control

RaceRender: Drag-and-drop interface, layered canvas, good positioning control. Designed for complex multi-gauge dashboards common in motorsport.

Stamptivity: Drag-and-drop positioning, free resizing. Simpler interface, easier learning curve.

Winner for complex layouts: RaceRender. Winner for simplicity: Stamptivity.

Export Quality

Both tools export standard MP4 at full resolution without quality degradation on longer clips.

Comparison Table

	Stamptivity Overlay	RaceRender Free	RaceRender Paid
Price	Free	Free	~$40
Platform	Browser (any OS)	Windows	Windows
Watermark	None	Yes	None
Install required	No	Yes	Yes
GPX / FIT input	✓	✓	✓
OBD-II support	✗	✓	✓
G-force gauge	✗	✓	✓
Lap timing	✗	✓	✓
Heart rate (sports)	✓	Limited	Limited
Mac support	✓	✗	✗

The Decision

Use Stamptivity if:

You're a cyclist, runner, hiker, or skier
You're on Mac (or any non-Windows OS)
You want a free tool with no watermark and no install
Your data source is a Garmin, Wahoo, Polar, Coros, or Strava

Use RaceRender if:

You're doing track days, karting, or circuit racing
You need OBD-II engine data or G-force
You're on Windows
You're fine paying ~$40 for the watermark-free version

Use neither and try Telemetry Overlay (~$40) if:

You want native GoPro GPMF support with high-quality rendering for sports content

Open Stamptivity Overlay → — free, no watermark, any OS.