# SirenGPX: Speed Video Overlay — GPS speedometer for cycling

> GPS speedometer for cycling (iPhone/iPad app by Alexey Sirenko.)

- Source: https://appshunter.io/ios/app/sirengpx-speed-video-overlay/id6775925397 (this page in markdown: same URL + `.md`)
- Developer: [Alexey Sirenko](https://appshunter.io/developer/6775925399)
- Category: Photo & Video, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 14.0 · 86 MB
- Languages: American English
- Released: 2026-06-29
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/sirengpx-speed-video-overlay/id6775925397/reviews.md

## What is SirenGPX?

Turn your ride videos into pro-looking clips. SirenGPX overlays your real workout data — speed, heart rate, elevation, distance — right onto the footage, all on your iPhone.

HOW IT WORKS
1. Record a workout with your Apple Watch (or any app that saves workouts to Apple Health).
2. Shoot a video on your iPhone or an action camera.
3. Pick the workout and the video in SirenGPX — it syncs them by time and renders the overlay.

WIDGETS & SCENES
- Bike computer: speed, distance, time
- Heart rate
- Elevation and route profile
- Speed graph
- Mini map
Customize the colors and show only the widgets you need. Choose from 8 speedometer styles, from minimal to neon.

PRIVATE BY DEFAULT
Everything renders on your iPhone. Your video and health data never leave the phone — no accounts, no cloud, no uploads.

FREE FOREVER, PRO IF YOU WANT IT
SirenGPX is free: every feature is available, with a small watermark on the video. Remove it for a single video by watching a short ad, or unlock SirenGPX Pro to remove the watermark forever — a one-time purchase, no subscription.

Works great for cycling, running, and any other workout tracked with Apple Watch and Apple Health. Compatible with footage from GoPro, DJI, Insta360 and any action camera.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| SirenGPX Pro | $4.99 | one-time |



## Version history (last 2 releases)

### 2 — 2026-08-29

- New overlay scenes to make your clips pop
- Smoother rendering and bug fixes

Enjoying SirenGPX? A quick rating really helps a small indie app grow — thank you!

### 1.0 — 2026-06-29

No release notes.

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## Related topics

[overlay videos](https://appshunter.io/ios/topics/overlay-videos) · [overlay one](https://appshunter.io/ios/topics/overlay-one)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*