Comparison

ACV Viper vs Speedometer XS

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

Head to head
About

ACV Viper

Features
Read full description

ACV Viper is the culmination of inspection tools and machine learning capabilities at ACV Auctions, car inspections, marketplace. These are packaged into a single platform as a dealer appraisal and inventory assessment tool. Our goal is to bring these technological advancements into the hands of dealers and industry professionals, allowing them to capture a wide array of vehicle information with the support of machine learning. This results in the most comprehensive suite of vehicle assessment capabilities in the industry.

About

Speedometer XS

Track your real-time speed, distance, and altitude during various activities like running, cycling, or driving. Record and analyze your measurements to monitor progress and identify areas for improvement.

Highlights
  • Real-time speed measurement
  • Track distance traveled
  • Record altitude
  • Save measurement history
  • Analyze performance data
  • User-friendly interface
Features
Read full description

Introducing Speedometer XS, the ultimate speed measurement app for your iPhone! Whether you're a runner, cyclist, or just someone who loves to track their speed, Speedometer has got you covered. With Speedometer, you can easily measure your speed in real-time, no matter what activity you're engaged in. Whether you're running a marathon, cycling through the countryside, or simply driving your car, Speedometer will accurately track your speed and provide you with all the information you need to stay on top of your game. But that's not all! Speedometer also allows you to record your measurements, including speed, travel distance, and altitude. This means that you can keep track of your progress over time and see how you're improving. Plus, with detailed measurement records, you can analyze your performance and identify areas for improvement. Speedometer is the perfect app for anyone who wants to stay on top of their speed and track their progress. Whether you're a serious athlete or just someone who enjoys staying active, Speedometer is the tool you need to take your performance to the next level. So why wait? Download Speedometer today and start tracking your speed like never before! With its user-friendly interface and powerful features, Speedometer is the ultimate speed measurement app for your iPhone.

Screenshots

ACV Viper4 screens
Speedometer XS4 screens

Verdict

The call

The clearest difference is update cadence: Speedometer XS at every 5 days against ACV Viper's fortnightly. 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

ACV Viper ships an update fortnightly, Speedometer XS every 5 days. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 8 level
ACV Viper versus Speedometer XS: the parameters behind the verdict, then further details
ParameterACV ViperSpeedometer XS
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size190 MB6 MB
Age rating4+4+
DeveloperACV Auctions Inc永超 侯

In-app purchases

None

ACV Viper

No in-app purchases

None

Speedometer XS

No in-app purchases

Questions

Is ACV Viper free?
ACV Viper is free to download, with no in-app purchases.
Is Speedometer XS free?
Speedometer XS is free to download, with no in-app purchases.
Do ACV Viper or Speedometer XS have ads?
Neither ACV Viper nor Speedometer XS shows ads.
Which is updated more often, ACV Viper or Speedometer XS?
ACV Viper ships an update fortnightly, and Speedometer XS every 5 days. Most recently, ACV Viper was updated on November 4, 2026 and Speedometer XS on October 30, 2026.

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