Comparison

SHv4 Calculator vs Klar App

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

Head to head
About

SHv4 Calculator

Calculate your vehicle's speedometer error and get setup instructions for a SpeedoHealer module. This free, ad-free tool helps correct inaccurate speed and odometer readings on most motorcycles and some cars. It offers troubleshooting information and is compatible with non-cable driven speedometers.

Highlights
  • Calculate speedometer error
  • Generate SpeedoHealer v4 setup instructions
  • Access troubleshooting information
  • Ad-free experience
  • Offline functionality
  • Compatible with most motorcycles and cars
Read full description

Use this free application to calculate the speedometer error of your vehicle and generate setup instructions for your SpeedoHealer v4 module. You can also access troubleshooting information. After installation, it does not use internet connection, it's Ad-free. On most modern motorcycles, with factory speedometer error being as high as 10%, even a modest sprocket gearing change can have the speedometer off by 15%. The sprocket change will also cause higher odometer reading, creating a negative resale factor for no valid reason. The SpeedoHealer is an inexpensive, convenient and very simple way to fix your speedo and odo. Compatible with all motorcycles with non cable driven speedometer. Plug 'n go SH kits are available for selected Harley, Honda, Hyosung, Buell, Ducati, Kawasaki, KTM, Suzuki, Triumph and Yamaha motorcycles. The SpeedoHealer can also be installed on cars which have a 2- or 3-wire speed sensor. Please check out our website for other cool and useful products for your motorcycle.

About

Klar App

Features
Read full description

Klar is a family task app built around one idea: everyone knows what they need to do. A parent creates the family, assigns tasks to each member, and sets a deadline. Klar handles the rest — sending reminders that get more frequent as the deadline approaches. When a task is done, the parent is notified. No nagging required. BUILT FOR FAMILIES — Assign tasks to any family member with a deadline — Recurring tasks — daily, weekly, biweekly, or monthly — Three roles: Owner, Parent, and Child, each with the right level of control — Everyone gets their own view — children see their tasks, parents see the full picture REMINDERS THAT ESCALATE Klar reminds the right person at 7 days, 3 days, 24 hours, 6 hours, 1 hour, 30 minutes, and 15 minutes before a deadline. Miss the deadline and both the assignee and parents are notified immediately. EARN MONEY FOR CHORES Add a compensation amount to any pool task. Kids claim what they want to do and earn real money. Parents pay with Swish directly from the app. NO ACCOUNTS REQUIRED No email addresses, no passwords. The family owner creates member profiles and each person gets a unique join code. Enter the code once and you're in. HOME SCREEN WIDGET See your open tasks without opening the app. Parents see their children's tasks at a glance. Children see their own. From Studio Cato — studiocato.io

Screenshots

SHv4 Calculator4 screens
Klar App4 screens

Verdict

The call

The clearest difference is in-app purchases: SHv4 Calculator at none against Klar App's 1. SHv4 Calculator also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). Klar App's advantage is update cadence (every 2 weeks vs every 3 months). On price and ads 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. Klar App sells 1 one-off in-app purchase. SHv4 Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

SHv4 Calculator ships an update every 3 months, Klar App every 2 weeks. The most recent releases landed on November 1, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
SHv4 Calculator versus Klar App: the parameters behind the verdict, then further details
ParameterSHv4 CalculatorKlar App
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size1 MB6 MB
Age rating4+4+
DeveloperHealTech Electronics Ltd.Michel Cato

In-app purchases

None

SHv4 Calculator

No in-app purchases

1 purchases

Klar App

One-time1
  • Unlock Klar$2.99

Questions

Is SHv4 Calculator free?
SHv4 Calculator is free to download, with no in-app purchases.
Is Klar App free?
Klar App is free to download, with in-app purchases available.
Do SHv4 Calculator or Klar App have ads?
Neither SHv4 Calculator nor Klar App shows ads.
Which is updated more often, SHv4 Calculator or Klar App?
SHv4 Calculator ships an update every 3 months, and Klar App every 2 weeks. Most recently, SHv4 Calculator was updated on November 1, 2026 and Klar App on October 6, 2026.

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