Comparison

Variable Calculator vs Digital Clock

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

Head to head
About

Variable Calculator

Features
Read full description

Variable Calculator lets you save frequently used formulas and calculate results quickly by changing the values of X, Y, and Z. Stop entering the same formula over and over again. Save a calculation once, then enter new values whenever you need to perform the calculation again. Variable Calculator is useful for discounts, margins, unit prices, taxes, workout weights, engineering formulas, and other repeated calculations. ■ Variable Calculator • Create formulas using X, Y, and Z variables • Save frequently used formulas and calculations • Recalculate instantly by entering new variable values • Use variables with both standard and scientific keypads • View long formulas and calculations clearly Example formulas: • Discounted price: X × (1 - Y ÷ 100) • Price including tax: X × 1.1 • Unit price: X ÷ Y • Target weight: X × Y • Custom formulas for work, study, or daily use ■ Standard Calculator • Fast and easy basic calculations • View the full expression and result • Calculation history • Copy expressions and results • Automatic text resizing for long numbers • Thousands separators • Scientific notation support ■ Scientific Calculator • Scientific calculator keypad • Configurable default angle unit • Use X, Y, and Z in scientific formulas ■ Convenient Features • Dark mode • Key vibration settings • Clean and intuitive interface • Quickly reuse saved formulas Make repeated calculations faster and easier. Save your own formulas, change the variable values, and get accurate results instantly. Privacy Policy: https://vars-calculator.aboutsvc.com/privacy Terms of Use: https://vars-calculator.aboutsvc.com/terms

About

Digital Clock

Transform your device into a retro LED digital clock with a dot matrix design. Offers multiple time formats, vibrant color options, and a full-screen display. Ideal for bedside tables, desks, or any space needing an elegant timepiece.

Highlights
  • Authentic dot matrix design
  • Multiple time formats (12/24 hr, seconds on/off)
  • 6 vibrant LED color options
  • Full-screen display
  • Optimized for all iPhones and iPads
  • Simple tap-to-access settings
Features
Read full description

Transform your iPhone or iPad into a stunning retro LED display with this beautifully crafted digital clock app. Experience Nostalgic Digital Beauty Relive the classic era of LED displays with our authentic dot matrix design. Each number is rendered using hundreds of individual glowing dots, creating that iconic retro aesthetic that defined the digital age. Perfect for Any Space Whether it's your bedside table, kitchen counter, or office desk, this full-screen clock turns your iPhone or iPad into an elegant timepiece that's both functional and decorative. Features: Multiple Time Formats - Switch between 12-hour and 24-hour display - Toggle seconds on/off (HH:MM:SS or HH:MM) Beautiful Color Options - Choose from 6 vibrant LED colors: Yellow, Green, Cyan, Orange, Red, and Purple - Each color captures the authentic glow of classic LED displays Optimized for All iPhones and iPads - Automatically adjusts dot size for perfect viewing on iPad Mini, iPad Air, and iPad Pro - Crisp, clear display in both portrait and landscape orientations Simple Controls - Tap anywhere on the screen to access settings - Clean, intuitive interface that doesn't distract from the clock - Settings panel matches the retro dot matrix aesthetic Perfect for Any Time - Full-screen display with hidden status bar for distraction-free viewing - Ideal as a bedside clock, desk accessory, or ambient display - Low power consumption for extended use Why You'll Love It: The carefully crafted dot matrix rendering creates an authentic retro experience that's both nostalgic and modern. Each glowing dot is perfectly sized and spaced to recreate the classic LED displays you remember, while taking advantage of your iPad's beautiful screen. Transform your iPad into a piece of retro-futuristic art that tells time beautifully. Download Digital Clock - LED Retro today and bring the golden age of digital displays to your space.

Screenshots

Variable Calculator4 screens
Digital Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Digital Clock at none against Variable Calculator's 1. Digital Clock also leads on ads (none vs shown). Variable Calculator's advantage is iOS requirement (15.0 vs 18.1). On price 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. Variable Calculator sells 1 in-app purchase, starting at $1.99 per month. Digital Clock asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Variable Calculator versus Digital Clock: the parameters behind the verdict, then further details
ParameterVariable CalculatorDigital Clock
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequency—Every 5 days
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.1
Further details — not scored
Size56 MB4 MB
Age rating4+4+
DeveloperAbout Service Inc.SeungJun Lee

In-app purchases

1 purchases

Variable Calculator

Subscriptions1
  • unlock_subscription$1.991 Month
None

Digital Clock

No in-app purchases

Questions

Is Variable Calculator free?
Variable Calculator is free to download, with in-app purchases available.
Is Digital Clock free?
Digital Clock is free to download, with no in-app purchases.
Do Variable Calculator or Digital Clock have ads?
Variable Calculator shows ads; Digital Clock does not.

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