Comparison

Simple Speedometer vs Knot/Knop Meter

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

Head to head
About

Simple Speedometer

This app transforms your iPhone into a precise GPS speedometer, offering a heads-up display (HUD) for windshield viewing, trip logging, and speed alerts. It supports various units and provides detailed trip data, all while prioritizing user privacy with no ads or accounts.

Highlights
  • Live GPS speed readout
  • HUD mode for windshield display
  • Trip odometer and driving log
  • Speed limit alerts
  • Voice announcements
  • Compass and altitude display
  • GPX/CSV trip export
Features
Read full description

Turn your iPhone into a focused GPS speedometer designed for clear, quick glances. SPEEDOMETER PRO A Speedometer Pro subscription unlocks the complete app: • Large live GPS speed display • MPH, KPH, knots and m/s • GPS accuracy, compass heading and altitude • Private trip summaries with distance, duration, maximum and average speed • Mirrored windshield HUD • Live camera view with a speed overlay SUBSCRIPTION DETAILS Title of service: Speedometer Pro Length of subscription: 1 month (auto-renewing) or 1 year (auto-renewing) Price: shown in your local currency on the subscription screen before you purchase. There is no free trial. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple ID account settings after purchase. Restore Purchases is available on the subscription screen and in Settings. TERMS OF USE AND PRIVACY Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://approtic.in/apps/speedometer-simple/privacy PRIVATE BY DESIGN No advertising account is required. Location and saved trip summaries remain on your device. RevenueCat is used only to load App Store subscription products, process purchases and restore Pro access. SAFETY Mount your device securely and configure the app before driving. Never hold or interact with your device while driving. GPS speed depends on signal quality and does not replace your vehicle's certified speedometer.

About

Knot/Knop Meter

Features
Read full description

KnotMeter turns your iPhone into a precise GPS speedometer for your boat, no extra hardware, no subscriptions. Open it, head out on the water, and see exactly how fast you're going in knots. Whether you're chasing a personal best, comparing boats with friends, or just curious what your hull can really do, KnotMeter measures it and remembers it. MEASURE YOUR SPEED • Real-time speed in knots (SOG) straight from GPS • Live session max and average speed • Four speedometer styles: dial, fixed 0–100, digital and bar • Color heats up from yellow to red the faster you go • GPS quality indicator so you know the reading is solid MORE THAN A SPEEDO • G-force meter, like a sports car • Live compass heading • Wind speed, direction and gusts • Every run auto-saves with location, heading, wind and peak G GLOBAL LEADERBOARD • See the fastest boats in the world and in your country • Filter by country, boat size, fuel (petrol/diesel/electric) and year • The all-time champion shines at the top • Add your boat with a photo, brand, model and engine details BUILT FOR THE WATER • Keeps measuring with the screen off or the phone stowed • Water-only, it won't count speed from a car or a plane • iCloud sync: your boats and runs follow you to a new device • Sign in with Apple • Dark and light themes • Free Download KnotMeter, hit the throttle, and find out how fast you really are.

Screenshots

Simple Speedometer4 screens
Knot/Knop Meter4 screens

Verdict

The call

The clearest difference is update cadence: Knot/Knop Meter at every 2 days against Simple Speedometer's every 2 months. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple Speedometer ships an update every 2 months, Knot/Knop Meter every 2 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
Simple Speedometer versus Knot/Knop Meter: the parameters behind the verdict, then further details
ParameterSimple SpeedometerKnot/Knop Meter
PriceFreeFree
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.016.0 — better
Further details — not scored
Size10 MB12 MB
Age rating4+4+
DeveloperViionr Infotech Private LimitedOFL AS

In-app purchases

None

Simple Speedometer

No in-app purchases

None

Knot/Knop Meter

No in-app purchases

Questions

Is Simple Speedometer free?
Simple Speedometer is free to download, with no in-app purchases.
Is Knot/Knop Meter free?
Knot/Knop Meter is free to download, with no in-app purchases.
Do Simple Speedometer or Knot/Knop Meter have ads?
Neither Simple Speedometer nor Knot/Knop Meter shows ads.
Which is updated more often, Simple Speedometer or Knot/Knop Meter?
Simple Speedometer ships an update every 2 months, and Knot/Knop Meter every 2 days. Most recently, Simple Speedometer was updated on October 28, 2026 and Knot/Knop Meter on October 24, 2026.

Other comparisons