Comparison

Calculus doodlus vs IconLab's

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

Head to head
About

Calculus doodlus

This app offers a multi-page calculator with automatic saving and advanced functions like percentage and VAT calculation. It uniquely presents calculations in an interactive, handwritten style that can be customized with your own script.

Highlights
  • Multi-page interface
  • Automatic work saving
  • Percentage calculation
  • VAT calculation
  • Customizable handwriting style
  • Interactive calculation pages
Features
Read full description

Calculus doodlus keeps your calculations visible, line by line. Read them back, continue where you left off, or go back and change any number. • Edit, copy & link Touch and hold any number to edit it. Tap a line to reuse its value, or double-tap to link it to another calculation and keep the values in sync. • Percentages & VAT Calculate percentages or deduct VAT with ease. The calculation remains visible, so you can see exactly how the result was obtained. • Keep your calculations Your pages are saved automatically. Keep recent calculations, pin important ones, rename and share them, and switch between pages with a swipe. • Big numbers, exact results Every operation is performed digit by digit, the same way you learned in school. That's how Calculus doodlus handles very large numbers while keeping exact results on the page. • Make it your own Customize the keyboard color and replace its digits with your own handwriting. Add Calculus doodlus to your Lock Screen or Control Center for one-tap access. 4.8 stars from more than 10,000 ratings Every 2 seconds, someone somewhere in the world starts a new calculation page. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

IconLab's

Personalize your iOS device with custom widgets for dates, times, quotes, and titles. Enhance your charging experience with interactive animations and mini-games. Explore premade and AI-generated themes to refresh your device's look.

Highlights
  • Customizable widgets
  • Interactive charging animations
  • Fun charging games
  • Premade themes
  • AI-generated themes
  • No account required
Features
Read full description

Customize your iOS experience like never before with IconLab's! Key Features: • Customizable Widgets • Date & Time Widgets: Personalize your home screen with stylish date and time displays paired with custom images. • Quote Widgets: Inspire yourself daily with quote widgets set against beautiful backgrounds. • Title Widgets: Make a statement with title widgets featuring your favorite images. • Interactive Charging Animations • Dynamic Charging Screen: Transform your charging screen with interactive animations and mini-games. • Fun Games: Enjoy engaging games like flappy bird clones or runner games while your device charges. • Custom Display: Choose where the date and time appear on your charging screen for a personalized touch. • Custom Themes • Premade Themes: Refresh your device’s look with a variety of professionally designed themes. • AI-Generated Themes: Create unique themes using AI technology (tokens required). • Easy Access: Purchase tokens via in-app purchases or get them with a subscription for unlimited theme generation. No Account Required • Hassle-Free Setup: Start customizing your iOS device immediately without any sign-up or authentication. Download IconLab's now and transform your iOS experience with personalized widgets, interactive charging animations, and stunning themes! EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Calculus doodlus4 screens
IconLab's4 screens

Verdict

The call

The clearest difference is update cadence: IconLab's at weekly against Calculus doodlus's every 6 weeks. IconLab's also leads on review sentiment (100% vs 82%) and rating (5.0 vs 4.8). Calculus doodlus's advantage is ratings volume (584 vs 1). On price, ads, in-app purchases and monetization model 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. Calculus doodlus sells 1 in-app purchase, starting at $4.99 per year and IconLab's sells 6 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

IconLab's holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Calculus doodlus has 584 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 82% of Calculus doodlus's written reviews are positive against 100% of IconLab's's.

UpkeepUpdate frequency

Calculus doodlus ships an update every 6 weeks, IconLab's weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Calculus doodlus versus IconLab's: the parameters behind the verdict, then further details
ParameterCalculus doodlusIconLab's
PriceFreeFree
Rating4.8 (584 ratings)5.0 (1 ratings) — better
Positive reviews81.9% of reviews100.0% of reviews — better
Number of ratings584 — better1
Update frequencyEvery 6 weeksWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.6 — better
Further details — not scored
Size13 MB678 MB
Age rating4+4+
DeveloperStéphan BarbéAlahem OU

Customer experience

Calculus doodlus

All ratings580 ratings
Positive94.1%
Neutral2.2%
Negative3.6%
Written reviews503 reviews
Positive81.9%
Neutral6.2%
Negative11.9%

IconLab's

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calculus doodlus

Reported bugs

3 issues
  • Calculation results not displaying correctly
  • App crashing on launch for some users
  • Handwritten numbers not registering properly

Requested features

5 requests
  • Add ability to edit/delete individual calculations
  • Implement a dark mode option
  • Include more advanced math functions
  • Allow copying/pasting of individual numbers
  • Improve multitasking support

IconLab's

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Calculus doodlus

Subscriptions1
  • Remove Ads$4.991 Year
6 purchases

IconLab's

Subscriptions3
  • Week$3.997 Days
  • 1 Month$13.991 Month
  • 1 Year$39.991 Year
One-time3
  • 150 Tokens For AI Generation$1.99
  • 350 Tokens For Custom Themes$3.99
  • 750 Tokens For Custom Themes$7.99

Questions

Is Calculus doodlus free?
Calculus doodlus is free to download, with in-app purchases available.
Is IconLab's free?
IconLab's is free to download, with in-app purchases available.
Which has better reviews, Calculus doodlus or IconLab's?
IconLab's is rated higher. Calculus doodlus averages 4.8 out of 5 from 584 ratings, while IconLab's averages 5.0 from 1 ratings.
Do Calculus doodlus or IconLab's have ads?
Both Calculus doodlus and IconLab's show ads.
Which is updated more often, Calculus doodlus or IconLab's?
Calculus doodlus ships an update every 6 weeks, and IconLab's weekly. Most recently, Calculus doodlus was updated on November 1, 2026 and IconLab's on November 4, 2026.

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