Comparison

Speedometer and G vs NaAVIC

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

Head to head
About

Speedometer and G

Track your current speed in various units and monitor G-force with this application. It saves your top G-force for a few seconds, allowing you to review performance after turns or drifts. Supports Apple Watch for on-the-go tracking.

Highlights
  • Speed tracking in mph, km/h, and knots
  • G-force measurement
  • Saves top G-force for 4 seconds
  • Apple Watch support
  • Ad-free experience
Features
Read full description

See your speed. Make it yours. Speedometer puts your current GPS speed front and centre with large digits and a clean display. Use it on iPhone or iPad, or check your speed from your wrist with the standalone Apple Watch app. YOUR SPEED AT A GLANCE • Choose km/h, mph, knots or m/s. • See GPS status when the signal is weak or unavailable. • Use the iPhone and iPad display in portrait or landscape. CHOOSE YOUR DASHBOARD On iPhone and iPad, choose G-force, trip statistics or no module for a simple speed display. Change your choice in Settings or explore the options in the interactive introduction. YOUR TRIP IN NUMBERS See top speed, moving average, distance and time in motion. Stops are excluded from the average. Your totals stay saved between app launches and module changes until you reset them. A confirmation helps prevent accidental resets. Trip measurement runs while the app is open in the foreground with reliable GPS, regardless of your selected module. Measurement pauses in the background, during the introduction or when GPS is unreliable. Gaps are not counted as distance or time. A DISPLAY THAT FITS YOU Choose from five colour themes and four digit styles. Follow your device’s light or dark appearance, or keep the app always light or always dark. YOUR SPEED ON YOUR WINDSHIELD HUD mode mirrors your speed and selected module so their reflection in your windshield reads the right way round. Place your device securely on the dashboard with the screen facing the glass, keeping your view clear. Reflection visibility depends on the windshield, screen brightness and ambient light. Set it up while parked. EXPLORE MOTION On iPhone and iPad, view current and peak G-force alongside roll, pitch and yaw. Measure overall acceleration or an individual device axis. Reset the peak and orientation reference whenever you need to. Motion features require an available device motion sensor. SPEED ON YOUR WRIST The Apple Watch app measures speed independently of your iPhone. Choose your unit on the watch and glance at your speed while walking, running, cycling or boating. Trip statistics and dashboard modules are available on iPhone and iPad. GET STARTED YOUR WAY An interactive introduction helps you explore the controls and personalise the display. You can revisit it from Settings. On iPhone and iPad, add a Siri shortcut for your current speed. Speed measurement requires location access and a usable GPS signal. Keep your attention on your surroundings and adjust the app only when it is safe to do so.

About

NaAVIC

This free marine navigation app simplifies boating for recreational users. It offers chart support, route planning, and offline capabilities to explore new locations safely and reliably. Connect with other boaters and share your voyages.

Highlights
  • Electronic chart support (IHO S-57/S-52)
  • Route creation and navigation
  • Offline navigation capability
  • Boat position, speed, and course display
  • Notifications and alarms
  • Recreational hotspot finder
  • Distance measurement
Features
Read full description

NaAVIC is a free Electronic Chart System in your pocket that will make marine navigation easy, safe, reliable, and fun. This free app is for recreational boaters who want to navigate the surrounding waters safely while exploring new and interesting locations to fish, dive, eat etc. The app offers a range of features to make marine navigation easier and reliable that are delivered through a clear and intuitive interface designed specifically for mobile devices and tablets. By utilizing a cloud-based approach with data streaming, the NaAVIC ECS enables all members of an expedition to more actively engage in the voyage as well as to share that voyage with fellow ‘marine friends’, hence building a community of like-minded users. Features: - Supports IHO S-57 charts and S-52 presentation - Comprehensive route creation and navigation - Offline navigation - Displays boat position, speed, and course - Notifications and alarms - Find recreational hotspots - Measure distances - Stream additional data layers over the base map - Point of Interest Quick Start Guide: https://naavic.net/NaAVICQuickStarGuide.pdf

Screenshots

Speedometer and G4 screens
NaAVIC4 screens

Verdict

The call

The clearest difference is price: NaAVIC at Free against Speedometer and G's $4.99. NaAVIC also leads on rating (5.0 vs 1.0) and review sentiment (33% vs 0%). On ratings volume, update cadence, ads and in-app purchases 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

NaAVIC is free to download; Speedometer and G costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NaAVIC holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Speedometer and G's written reviews are positive against 33% of NaAVIC's.

UpkeepUpdate frequency

Speedometer and G ships an update every 3 months, NaAVIC every 6 months. The most recent releases landed on October 29, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
Speedometer and G versus NaAVIC: the parameters behind the verdict, then further details
ParameterSpeedometer and GNaAVIC
Price$4.99Free — better
Rating1.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews33.3% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 3 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.012.0 — better
Further details — not scored
Size6 MB20 MB
Age rating4+4+
DeveloperAlexander RossIIC

Customer experience

Speedometer and G

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

NaAVIC

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Speedometer and G

No in-app purchases

None

NaAVIC

No in-app purchases

Questions

Is Speedometer and G free?
Speedometer and G costs $4.99, with no in-app purchases.
Is NaAVIC free?
NaAVIC is free to download, with no in-app purchases.
Which has better reviews, Speedometer and G or NaAVIC?
NaAVIC is rated higher. Speedometer and G averages 1.0 out of 5 from 2 ratings, while NaAVIC averages 5.0 from 1 ratings.
Do Speedometer and G or NaAVIC have ads?
Neither Speedometer and G nor NaAVIC shows ads.
Which is updated more often, Speedometer and G or NaAVIC?
Speedometer and G ships an update every 3 months, and NaAVIC every 6 months. Most recently, Speedometer and G was updated on October 29, 2026 and NaAVIC on October 1, 2026.

Other comparisons