Comparison

GPSSpeed vs Tachys

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

GPSSpeed

Features
Read full description

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 vehicle’s 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

About

Tachys

Features
Read full description

Tachys is a GPS speedometer built for the moments when you want one clear, readable numberβ€”on 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 Watch’s 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

GPSSpeed4 screens
Tachys4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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.

Scorecard1 real difference Β· 5 level
GPSSpeed versus Tachys: the parameters behind the verdict, then further details
ParameterGPSSpeedTachys
PriceFreeFree
Update frequencyβ€”Every 4 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS17.0 β€” better26.0
Further details β€” not scored
Size3 MB7 MB
Age rating4+4+
Developer学友 刘Juraj Krivda

In-app purchases

2 purchases

GPSSpeed

Subscriptions2
  • Pro Monthly$2.991 Month
  • Pro Yearly$19.991 Year
1 purchases

Tachys

One-time1
  • Tachys Pro$4.99

Questions

Is GPSSpeed free?
GPSSpeed is free to download, with in-app purchases available.
Is Tachys free?
Tachys is free to download, with in-app purchases available.
Do GPSSpeed or Tachys have ads?
Neither GPSSpeed nor Tachys shows ads.

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