Comparison

Lifekey vs Acceleration

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

Head to head
About

Lifekey

Instantly share bio, social links, and personal safety information with a tap. Connect with family, manage profiles for loved ones, and protect personal health data. Also allows for item and pet tracking.

Highlights
  • Instant bio and social link sharing
  • Personal safety information access
  • Family and loved one check-ins
  • Temporary health data access
  • Pet and item tracking
  • Tap OS integration
Read full description

Lifekey® connects to wearables and other devices to provide instant access to your bio, social links, and personal safety info with just a tap. Check-in with family members to let them know where you are and what you're up to. There's no creepy tracking — share only when you want to. Use the app to manage your profile, your kids, seniors, pets and even your prized possessions. • CONNECTED FAMILY: Did Cooper make it to practice? Check-in with family and friends with just a tap or share a moment by including a photo and a note from your current location. Lifekey puts peace of mind and security at your fingertips while protecting your loved ones. • SAFETY AND WELL BEING: Take a proactive approach to your safety with Lifekey. Store, protect, and give temporary access to your personal health info when it's needed most. Designed to work with Lifekey wearables like Smart Straps, stickers, patches, and more. Ideal for families, athletes, and kids. • GIVE PETS A VOICE: Tap a Fetch® Pet Tag with your phone and you'll notify that pet's owner of their whereabouts. You'll also get instant access to the pet's human contact and vet records. • FIND MY OWNER: What if you leave your coveted snowboard on the mountain or your bike in the park? Wouldn’t it be nice if it could tell someone who it belongs to and how to contact you? Use this app to load important info on items and so you can be notified when it’s found. • TAP® OS: Our proprietary operating system makes it possible to activate and access a new world of functionality from tap-enabled products anywhere you see the Lifekey logo. Look for it on everything from ski jackets to stuffed animals. See how it works and scan your first Lifekey at https://usetap.app Supported features may vary across devices, phones, and countries. Tap OS is not available in certain countries and languages.

About

Acceleration

Read full description

'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

Lifekey4 screens
Acceleration4 screens

Verdict

The call

The clearest difference is in-app purchases: Lifekey at none against Acceleration's 1. Lifekey also leads on device support. Acceleration's advantage is iOS requirement (8.0 vs 16.6). 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. Lifekey asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Lifekey versus Acceleration: the parameters behind the verdict, then further details
ParameterLifekeyAcceleration
PriceFreeFree
Rating2.8 (28 ratings) — better—
Positive reviews17.6% of reviews—
Number of ratings28 — better—
Update frequencyEvery 2 months—
AdsNo—
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — better—
Requires iOS16.68.0 — better
Further details — not scored
Size103 MB28 MB
Age rating12+4+
DeveloperLifekey, Inc.Kevin Power

In-app purchases

None

Lifekey

No in-app purchases

1 purchases

Acceleration

One-time1
  • Acceleration - Save and Show$0.99

Questions

Is Lifekey free?
Lifekey 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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