Comparison

HeadUp Display car vs Calc ± Smart Widgets

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

Head to head
About

HeadUp Display car

This app projects navigation and driving information onto your car's windshield. Enhance your night driving experience with speed, clock, weather, and music details displayed directly in your line of sight.

Highlights
  • Windshield projection
  • Navigation display
  • Speedometer
  • Clock
  • Weather temperature
  • Now playing song info
Features
Read full description

What 's HeadUp Display: (HUD) projects navigation and some information onto windshield of your car, make driving at night more safer and attractive. How to Use HeadUp Display: step 1: Launch the app step 2: Rotate your iPhone into landscape mode. step 3: Place the smartphone close to the windshield. step 4: The exact data include speed, clock, weather temperature, Cruise control and now playing song title and artist name are projected onto windshield.

About

Calc ± Smart Widgets

Features
Read full description

Calc ± Smart Widgets One app. Every calculation. Calc replaces a dozen single-purpose apps with 25+ beautifully designed calculators and converters — all one tap away. WHY PEOPLE LOVE CALC - Everything in one place — no more switching between apps - Clean, distraction-free design that's a joy to use - Interactive home screen widgets for instant answers - Works beautifully on both iPhone and iPad - Choose your number format: Indian (10,00,000), Western, European, or East Asian FINANCE CALCULATORS - EMI Calculator — plan loans with confidence - SIP Calculator — project your investment growth - GST Calculator — add or subtract tax instantly - VAT Calculator — quick tax breakdowns - Percentage, Discount & Tip calculators for everyday math SMART CONVERTERS - Currency Converter with live rates - Length, Weight, Volume, Area & Temperature - Speed, Pressure, Energy, Force & Power - Number systems — Binary, Octal, Decimal, Hexadecimal - Timezones & Data storage units MADE FOR YOUR WORKFLOW - Pick your default tool — open straight into the calculator you use most - Set default units once, convert faster forever - Sound & haptic feedback you can toggle - Optimized sidebar navigation on iPad GO PRO Unlock all calculators, premium interactive widgets, and calculation history with Calc Pro. Start with a free trial — cancel anytime. Whether you're planning a loan, splitting a bill, converting units for work, or checking exchange rates before a trip — Calc gives you the answer in seconds. Download Calc today and carry every calculator in your pocket. If you face any technical challenges or have any suggestions or feedback,  Feel free to contact us at info@hkinfoway.com . Privacy Policy: https://calc.wallzy.app/privacy-policy

Screenshots

HeadUp Display car4 screens
Calc ± Smart Widgets4 screens

Verdict

The call

The clearest difference is update cadence: Calc ± Smart Widgets at daily against HeadUp Display car's every 3 months. HeadUp Display car's advantage is iOS requirement (14.0 vs 17.0). 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. HeadUp Display car sells 3 one-off in-app purchases and Calc ± Smart Widgets sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HeadUp Display car ships an update every 3 months, Calc ± Smart Widgets daily. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
HeadUp Display car versus Calc ± Smart Widgets: the parameters behind the verdict, then further details
ParameterHeadUp Display carCalc ± Smart Widgets
PriceFreeFree
Rating4.3 (202 ratings) — better—
Positive reviews28.6% of reviews—
Number of ratings202 — better—
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size12 MB55 MB
Age rating4++4
DeveloperNikaan NikzadHKinfoway Technologies

In-app purchases

3 purchases

HeadUp Display car

One-time3
  • Song Title Display$1.99
  • Cruise Control$1.99
  • RemoveADS$7.99
2 purchases

Calc ± Smart Widgets

Subscriptions2
  • Calc ± Pro Monthly3 Days trial$1.991 Month
  • Calc ± Pro Yearly14 Days trial$12.991 Year

Questions

Is HeadUp Display car free?
HeadUp Display car is free to download, with in-app purchases available.
Is Calc ± Smart Widgets free?
Calc ± Smart Widgets is free to download, with in-app purchases available.
Do HeadUp Display car or Calc ± Smart Widgets have ads?
Neither HeadUp Display car nor Calc ± Smart Widgets shows ads.
Which is updated more often, HeadUp Display car or Calc ± Smart Widgets?
HeadUp Display car ships an update every 3 months, and Calc ± Smart Widgets daily. Most recently, HeadUp Display car was updated on October 26, 2026 and Calc ± Smart Widgets on October 30, 2026.

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