GPSSpeed vs Tachys
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
GPSSpeed
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Turn your iPhone into a reliable GPS speedometer for driving, cycling, running, and boating. See your current speed at a glance with a high-contrast gauge, track every trip, and stay informed with overspeed alerts. KEY FEATURES β’ Real-time GPS speed β current, average, and max speed β’ Trip tracking β distance, duration, and route map β’ Activity modes β driving, cycling, running, and boating β’ Overspeed alerts β sound, vibration, and notifications β’ HUD mode β mirror the display for windshield reflection β’ Trip history β review past trips on your device β’ Home Screen widget β glance at speed without opening the app β’ Apple Watch companion β speed on your wrist; syncs with iPhone β’ Units β km/h or mph β’ Light, dark, and Pro themes β’ Multiple languages including RTL support for Arabic GPS SPEEDOMETER PRO (OPTIONAL SUBSCRIPTION) Upgrade to Pro for: β’ Unlimited trip history β’ CSV & GPX export β’ Advanced HUD theme β’ Advanced widget theme β’ Advanced overspeed options Pro is an auto-renewable subscription billed through your Apple ID. Payment is charged at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in Settings β Apple ID β Subscriptions. Restore purchases anytime in the app. IMPORTANT GPS speed is for personal reference only. It is not a certified or legal measurement device and should not replace your vehicleβs official instruments. Accuracy depends on GPS signal quality (open sky works best). Location is used to measure speed, distance, and routes while you use the app. Trip data is stored locally on your device unless you export it. LEGAL Privacy Policy: https://gps-speedometer-privacy-policy.vercel.app/ Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: support@gpsspeedometer.app
Tachys
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Tachys is a GPS speedometer built for the moments when you want one clear, readable numberβon the road, on a train, on a bike, on foot or in the air. JUST OPEN AND GO Tachys measures automatically. It combines GPS and motion data, filters unreliable fixes and detects whether you are walking, cycling, driving, traveling by train or flying. Choose km/h, mph or knots. HONEST WHEN GPS DISAPPEARS In a tunnel or during a signal outage, Tachys never silently drops to zero or freezes a number. It dims the last known speed and shows how long the signal has been missing. AT A GLANCE β’ Digital LED display and a minimal arc view β’ Maximum and average speed, moving time, distance and altitude β’ Target speed with a clear reached milestone β’ Live Activity for the Lock Screen and Dynamic Island β’ Home Screen widget and quick launch from system controls YOUR TRIPS, YOUR DATA Tachys records trips locally on your iPhone. Tachys Pro unlocks history with speed charts, route maps and replay, plus GPX and CSV export and shareable trip cards. ON YOUR WRIST The Tachys Pro Apple Watch app uses the Watchβs own GPS. Measure away from your iPhone; completed trips transfer back when the devices reconnect. PRIVATE BY DESIGN There is no Tachys account, backend, advertising or automatic upload to us. Location and trip history are processed locally unless you choose to export or share them. The speedometer, current trip data and Live Activity are free. Tachys Pro is a one-time purchase for history, export and the Apple Watch app. No subscription. Tachys is not a certified navigation or vehicle instrument. Stay aware of your surroundings and follow local laws.
Screenshots
Verdict
The clearest difference is iOS requirement: GPSSpeed at 17.0 against Tachys's 26.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. GPSSpeed sells 2 in-app purchases, starting at $2.99 per month and Tachys sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | GPSSpeed | Tachys |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 4 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 17.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 3 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ε¦ε ε | Juraj Krivda |
In-app purchases
GPSSpeed
- Pro Monthly$2.991 Month
- Pro Yearly$19.991 Year
Tachys
- Tachys Pro$4.99








