MultiGauge vs Speedometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MultiGauge
This application connects to specific hardware to display real-time sensor data from your vehicle on your smartphone. Monitor vital engine parameters like air-fuel ratio, temperature, and pressure for performance tuning and diagnostics.
- Real-time sensor data display
- Bluetooth LE connectivity
- Supports multiple sensor modules
- Visualizes engine parameters
- Compatible with PLX Devices hardware
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MultiGauge App is designed to function with the PLX Devices Multi Gauge Link hardware interface. The Multi Gauge Link includes a Bluetooth LE wireless communication protocol designed to work seamlessly with this app. PLX Devices sensor modules can be connected in a daisy-chain and the Multi Gauge Link is connected to the last sensor module in the chain to transmit sensor data to your smart phone for visual display. Compatible Hardware: Multi Gauge Link SM-PRO - Fluid Temp, Exhaust Gas Temp, Air Intake Temp, Fluid Pressure, Vac/Boost SM-AFR - Wideband Air/Fuel Ratio Sensor Module Compatible Hardware Combinations: SM-AFR + MultiGauge Link. SM-Vac/Boost + MultiGauge Link. SM-AFR + SM-Vac/Boost + MultiGauge Link. SM-PRO + SM-AFR + MultiGauge Link SM-PRO + MultiGauge Link SM-Pro is a combined sensor module for accurately measuring Vac/Boost, Exhaust Gas Temperature, Air Intake Temperature, Fluid (Oil/Water) Temperature, and Fluid Pressure. Includes genuine Honeywell 3Bar Vac/Boost sensor (built-in), wires/connectors for digital interface with DM-6, DM-100/200, MultiGauge Link. Also includes analog outputs for interfacing with 3rd party ECU's and data loggers. The SM-AFR Gen4 Sensor Module is a tuner grade Bosch LSU 4.9 wideband oxygen sensor controller with digital/analog outputs for 3rd interface. Accurately reads the air/fuel ratio of any internal combustion from 0.68 Lambda to 1.36 Lambda (10:1 - 20:1 AFR *Gasoline). Fully plug and play, no sensor calibration is required. Compatible with Gasoline, Diesel, Ethanol, Methanol, E85, LPG, CNG. Accurate to 0.1AFR with less than 100mS reaction time from rail to rail. Advanced sensor health monitoring, displays oxygen sensor health and reaction time when connected to DM-6 gauge or to your smartphone via the Multi Gauge Link interface. The SM-Vac/Boost Sensor Module accurately measures the vacuum pressure and boost pressure of any intake manifold. This is ideal for turbo and supercharged applications where monitoring the intake pressure is vital. The Vacuum / Boost Sensor Module can also be used as a stand alone unit capable of interfacing with 3rd party hardware where both the digital output and the analog output are available simultaneously. Its measurement range is 30.5 inHg to 30 PSI or 760 mmHg to 2.11 Kg/cm^2. Connect this sensor module via the Multi Gauge Link interface for a boost gauge on your smartphone. For more information visit www.plxdevices.com
Speedometer
Track your speed and location with a GPS-powered dashboard. Features include weather updates, a compass, and speed limit alerts based on real-time road data. Customize the display and utilize HUD mode for enhanced visibility.
- GPS speed tracking
- Map location display
- Current weather and temperature
- Analog compass
- Speed limit alerts
- HUD mode
- Apple Watch support
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Measure your speed with this beautiful designed speed dashboard with many other functionality. It can track your speed, location on map by using GPS. Features: * Graphical presentation of speed * Analog and numeric speed * Current location weather and temperature in Celsius or Fahrenheit * Kilometer and Mile unit system selection * Change dashboard different color * Analog Compass * Map location * Maximum, average speed and odometer * Speed limit of current road getting online info from open street.org * Over speed limit warn * Current road name * Portrait and landscape mode * HUD (Head up Display Mode) * Today widget presentation * Apple watch support and syncronisation
Screenshots
Verdict
The clearest difference is review sentiment: Speedometer at 69% against MultiGauge's 17%. Speedometer also leads on rating (4.6 vs 1.0) and ratings volume (1.8K vs 4). MultiGauge's advantage is update cadence (fortnightly vs every 2 months) and monetization model (free vs ad-supported). On price, ads, in-app purchases and iOS requirement 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.
Speedometer holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Speedometer has 1.8K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 17% of MultiGauge's written reviews are positive against 69% of Speedometer's.
MultiGauge ships an update fortnightly, Speedometer every 2 months. The most recent releases landed on June 11, 2026 and September 26, 2026 respectively.
| Parameter | MultiGauge | Speedometer |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (4 ratings) | 4.6 (1.8K ratings) — better |
| Positive reviews | 16.7% of reviews | 69.1% of reviews — better |
| Number of ratings | 4 | 1.8K — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 12.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | PLX Devices, INC. | UniCom Technology |
Customer experience
MultiGauge
Speedometer
Bugs and requests
MultiGauge
Not enough reviews yet to summarise bugs or requests.
Speedometer
Reported bugs
3 issues- Speedometer not accurate at high speeds
- GPS signal slow to update
- Speed limit not always correct
Requested features
2 requests- Option to remove ads
- Thicker/bolder font for better readability
In-app purchases
MultiGauge
No in-app purchases
Speedometer
No in-app purchases
Questions
Is MultiGauge free?
Is Speedometer free?
Which has better reviews, MultiGauge or Speedometer?
Do MultiGauge or Speedometer have ads?
Which is updated more often, MultiGauge or Speedometer?
Other comparisons
