Digital Link vs Speed Tracker mach4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Link
Control your chronograph and manage velocity data wirelessly from your smartphone or tablet. Ideal for testing shooting loads and skills for speed and consistency.
- Wireless chronograph control
- Velocity data collection
- Modern user interface
- Smartphone/tablet connectivity
- Load testing
- Shooting skill analysis
Read full descriptionHide full description
Cut the Cord! This app is designed to be used in conjunction with the ProChrono Digital chronograph (model CEI-3800) and the Digital Link Bluetooth accessory (model CEI-3812) OR the ProChrono DLX (CEI-3820). It provides a modern user interface for controlling the chronograph as well as collecting and managing the velocity data. Now you can connect wireless to your chronograph using a tablet or smartphone! Whether you are interested in testing your loads or your shooting skills for speed and consistency, Competition Electronics has a product to suit your needs. We have been producing quality shooting products in the USA since 1982. Our goal is to provide a long lasting product that is serviceable and affordable.
Speed Tracker mach4
Measure the speed of objects using Doppler radar technology. This app accurately tracks speeds from 250 to 1250 m/s with precision better than 0.1%. Available on various Apple devices.
- Doppler radar speed measurement
- Speed range: 250-1250 m/s
- Accuracy better than 0.1%
- Supports Apple Watch, iPhone, iPad, iPod
Read full descriptionHide full description
The speed Doppler radar cover 250 to 1250 m/s ( 820 - 3940 fps ) speed range with an accuracy better than 0.1 %
Screenshots
Verdict
The clearest difference is rating: Speed Tracker mach4 at 3.7 against Digital Link's 3.0. Speed Tracker mach4 also leads on device support (4 vs 2) and iOS requirement (9 vs 16.4). Digital Link's advantage is ratings volume (50 vs 3). On price, review sentiment, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
Speed Tracker mach4 holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Digital Link has 50 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 43% of Digital Link's written reviews are positive against 50% of Speed Tracker mach4's.
Digital Link ships an update every 5 weeks, Speed Tracker mach4 every 6 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.
| Parameter | Digital Link | Speed Tracker mach4 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (50 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 43.1% of reviews | 50.0% of reviews — better |
| Number of ratings | 50 — better | 3 |
| Update frequency | Every 5 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 16.4 | 9 — better |
| Further details — not scored | ||
| Size | 71 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Competition Electronics | nVisti |
Customer experience
Digital Link
Speed Tracker mach4
In-app purchases
Digital Link
No in-app purchases
Speed Tracker mach4
No in-app purchases
Questions
Is Digital Link free?
Is Speed Tracker mach4 free?
Which has better reviews, Digital Link or Speed Tracker mach4?
Do Digital Link or Speed Tracker mach4 have ads?
Which is updated more often, Digital Link or Speed Tracker mach4?
Other comparisons
