Comparison

Calculator Max vs Discount Calculator SDG

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

Head to head
About

Calculator Max

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

Highlights
  • Basic and scientific calculators
  • History tape with export options
  • Handwritten notes and equation solving
  • Multitasking support on iPad
  • Customizable themes and app icons
  • Home Screen and Lock Screen widgets
Features
Read full description

Calculator Max makes both simple and complex calculations easy. It offers all calculators you’ll ever need in one carefully designed, uncluttered and easy-to-use package. Switching between calculators is buttery-smooth and natural. The basic calculator with big buttons swiftly handles everyday tasks. The more advanced scientific calculator is loaded with all important mathematical functions and constants. A history tape with your entries is comfortably accessible in all calculator modes. Thanks to it, you never lose track of what you’ve entered and the entries can be reused effortlessly in your calculations. The tape can also be exported to common formats and shared or printed. On the large screen of any iPad it is pure joy to make handwriting notes or draw your ideas right in the app. Write down any math equation and let the app calculate it for you in the blink of an eye. Or reuse any handwriting which you can easily convert to editable text. ————————— WHAT YOU GET ————————— /// POWERFUL CALCULATOR /// — Basic calculator with big buttons — Scientific calculator packed with functions and constants — History tape with the calculations at your fingertips in all modes — Extensive rounding options (e.g. two decimal places for accounting) — Up to 5 memory slots for frequent numbers — Plain Text, Monospaced Text, CSV, PDF and image export formats — Advanced export, share and print options — Scribble Pad on iPad for easy math equations solving, handwritten notes and sketches /// PRODUCTIVE WORKFLOW /// — Side tape layouts for easier long records handling — Clean and uncluttered interface with refined haptic feedback — Multitasking support on iPad for side-by-side work — External keyboard support for even faster input and app control — Universal app for all your iPhones, iPads and Macs — User interface precisely adapted for each device capabilities /// FAST ACCESS /// — Home Screen widgets with last calculations and memory — Widgets for direct access from the Lock Screen — Control Center and Lock Screen fast access buttons /// MIGHTY SCRIBBLE PAD /// — The right place for your quick notes and sketches — Easily calculates any written down math equation — Recognizes your handwriting and converts it to editable text — Fully-fledged notebook with unlimited number of paper sheets — Exportable as text, image or PDF — Optimized for your finger as well as Apple Pencil — Support for LAMY and Adonit styluses (on iPad) — Available on all iPad models /// EXTENSIVE CUSTOMIZATION /// — Handcrafted design themes with dark mode support — Loads of app icons you can easily choose from the best one for your Homescreen — Carefully selected sound sets Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Discount Calculator SDG

This utility app quickly calculates the final price of an item after a discount and shows how much money you've saved. Its real-time results and flexible design make it easy and fast to use on any device.

Highlights
  • Real-time discount calculation
  • Shows amount saved
  • Flexible design
  • Easy and quick to use
  • Works on all devices
Features
Read full description

Discount calculator helps you to calculate final price and the amount you save. Discount calculator is great application and easy to use. - discount calculator shows results in real time - very flexible design of Discount calculator - use easily and quickly - Discount calculator works well on all devices - for more great apps please visit our page Thank you for taking the time to review our application.

Screenshots

Calculator Max4 screens
Discount Calculator SDG4 screens

Verdict

The call

The clearest difference is rating: Discount Calculator SDG at 5.0 against Calculator Max's 4.3. Discount Calculator SDG also leads on in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.0). Calculator Max's advantage is ads (none vs shown) and update cadence (every 2 months vs every 13 months). 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. Calculator Max sells 2 in-app purchases, starting at $4.99 per year. Discount Calculator SDG asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Discount Calculator SDG holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Calculator Max has 1.9K ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Calculator Max ships an update every 2 months, Discount Calculator SDG every 13 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Calculator Max versus Discount Calculator SDG: the parameters behind the verdict, then further details
ParameterCalculator MaxDiscount Calculator SDG
PriceFreeFree
Rating4.3 (1.9K ratings)5.0 (7 ratings) — better
Positive reviews55.1% of reviews—
Number of ratings1.9K — better7
Update frequencyEvery 2 months — betterEvery 13 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size126 MB13 MB
Age rating4+4+
DeveloperPavel KozarekSDG CODE DOO NIS

Customer experience

Calculator Max

All ratings1,651 ratings
Positive82.0%
Neutral2.8%
Negative15.2%
Written reviews292 reviews
Positive55.1%
Neutral3.4%
Negative41.4%

Discount Calculator SDG

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calculator Max

Reported bugs

3 issues
  • Crashes after iOS 26 update
  • Tape not visible/functional on iPhone
  • Calculator buttons/layout issues in split-screen mode

Requested features

5 requests
  • Left-handed mode
  • Backspace/edit functionality
  • Scientific calculator mode with tape
  • Tape annotation/labeling
  • Cloud/Dropbox sync for tape

Discount Calculator SDG

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Calculator Max

Subscriptions1
  • Calculator Max Pro7 Days trial$4.991 Year
One-time1
  • Calculator Max Pro$3.99
None

Discount Calculator SDG

No in-app purchases

Questions

Is Calculator Max free?
Calculator Max is free to download, with in-app purchases available.
Is Discount Calculator SDG free?
Discount Calculator SDG is free to download, with no in-app purchases.
Which has better reviews, Calculator Max or Discount Calculator SDG?
Discount Calculator SDG is rated higher. Calculator Max averages 4.3 out of 5 from 1.9K ratings, while Discount Calculator SDG averages 5.0 from 7 ratings.
Do Calculator Max or Discount Calculator SDG have ads?
Discount Calculator SDG shows ads; Calculator Max does not.
Which is updated more often, Calculator Max or Discount Calculator SDG?
Calculator Max ships an update every 2 months, and Discount Calculator SDG every 13 months. Most recently, Calculator Max was updated on November 6, 2026 and Discount Calculator SDG on November 2, 2026.

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