Comparison

American Quartz vs Acceleration

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

Head to head
About

American Quartz

Explore a wide range of products from various categories through an immersive visual experience. This app allows users to discover items without needing to visit physical stores.

Highlights
  • Visual product experience
  • Wide product variety
  • Multiple categories
  • No physical store visits required
  • User-friendly interface
Features
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American quartz app is an interface for end users to get an visual experience of products without visiting our physical stores. It offers wide varieties of products from different categories.

About

Acceleration

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'Acceleration' is special in two ways. First, it processes the readings from your built-in accelerometers in real time to show only horizontal acceleration. Second, it takes data directly from your built-in accelerometers, sidestepping built-in smoothing. Created originally to help EV drivers who were concerned that their brake lights were coming on inappropriately during regenerative braking, it can also be used to display braking and acceleration performance. It's a small app that's easy to use. You don't have to sign-in, there aren't any ads and an internet connection isn't needed. To use the app, set your device in one fixed place. Tap 'Calibrate' to let the app find the size and direction of gravity. Horizontal acceleration is now displayed. When 'Record' is tapped, for the next 13 seconds a scatter graph of calculated readings is displayed. Two green arrows let you increase or decrease the vertical scale of the graph. By default, unsmoothed data from your accelerometers is used. Tapping the 'Smooth' button continuously averages the last last ten readings. This helps to manage results. To help check the correct function of brake lights during regeneration, the 'Lamp' button displays a panel that changes from blue to yellow at 0.7m/s/s, and to red at 1.3m/s/s. Upgrading will let you save your sets of data to look at later. You can also export full-sized pictures of graphs into your camera roll. However, apart from this, the free version of this app is fully functional. This app takes raw data from the accelerometers - not the processed data provided by the operating system. When 'Calibrate' is pressed, the magnitude and direction of gravity is measured, relative to the device. The app then continues to collect data from the accelerometers, mathematically projecting it onto the plane perpendicular to the original gravity vector. It reports the magnitude of this projected vector. This process produces a reliable result for horizontal acceleration, whilst making you aware of jitter and sensitivity.

Screenshots

American Quartz4 screens
Acceleration4 screens

Verdict

The call

The clearest difference is in-app purchases: American Quartz at none against Acceleration's 1. American Quartz also leads on device support. Acceleration's advantage is iOS requirement (8.0 vs 13.7). On price 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. Acceleration sells 1 one-off in-app purchase. American Quartz asks for nothing beyond the download.

Scorecard3 real differences · 6 level
American Quartz versus Acceleration: the parameters behind the verdict, then further details
ParameterAmerican QuartzAcceleration
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 9 months—
AdsNo—
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — better—
Requires iOS13.78.0 — better
Further details — not scored
Size38 MB28 MB
Age rating4+4+
DeveloperAMERICAN QUARTZ, LLCKevin Power

In-app purchases

None

American Quartz

No in-app purchases

1 purchases

Acceleration

One-time1
  • Acceleration - Save and Show$0.99

Questions

Is American Quartz free?
American Quartz is free to download, with no in-app purchases.
Is Acceleration free?
Acceleration is free to download, with in-app purchases available.

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