Comparison

Haseba Calculator vs Big Button Calculator Pro

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

Head to head
About

Haseba Calculator

This app offers a user-friendly calculator with both basic and scientific functions. It features a clean interface, voice input, and convenient history tracking. Advanced options include memory slots for storing values and applying operations to them.

Highlights
  • Scientific calculator
  • Voice calculator
  • Calculation history
  • Copy and paste functionality
  • Dynamic themes
  • Memory slots with operations
Features
Read full description

While building Haseba, we focused most of our energy on the user interface. We think that the key to any great app is a beautiful, and simple design that works seamlessly with the app's features. • Scientific Calculator • Voice Calculator • History (Swipe down in the display area) • Copy and Paste • Dynamic Light / Dark Themes (and icons) • Larger Buttons Option • Available on Apple Watch Memory Slots • Save a value inside one of 11 memory slots to use them in calculations later • A value may be the result of a previous calculation, or pasted from the clipboard into a memory slot • The process to store a value in a memory slot is very easy and fast, just drag down a memory slot • Copy memory slot value to clipboard • After having a set of occupied memory slots, you can apply one of six different operations on them in one tap: sum, average, product, median, max, min, of the occupied memory slots. ___________________________________________ Terms & Privacy: https://bit.ly/haseba-terms-privacy Need help or have questions? Reach out to us at haseba-app@hotmail.com

About

Big Button Calculator Pro

A user-friendly calculator app featuring large, colorful buttons and a dual-line display for simultaneous input and result viewing. It supports long equations, offers customizable themes and sounds, and includes accessibility features.

Highlights
  • Dual-line display
  • Big buttons
  • 18 color themes
  • Multi-line input
  • Gesture controls
  • VoiceOver accessibility
Features
Read full description

This is THE BEST calculator for iOS with big buttons and colorful backgrounds! ・Dual-line display - shows the input and result at the same time ・Percentage and backspace button ・18 color themes ・Multi-line input for really long equations ・Automatic scientific formatting ・VoiceOver accessibility ・Split View Gestures ・Swipe left on the display to backspace ・Swipe right on the display to clear ・Tap & hold on the result to copy ・Tap & hold on the input to move the cursor, copy, paste Customize ・Color Theme ・Sound URL Scheme: bigcalculatorpro://

Screenshots

Haseba Calculator4 screens
Big Button Calculator Pro4 screens

Verdict

The call

The clearest difference is price: Haseba Calculator at Free against Big Button Calculator Pro's $9.99. Haseba Calculator also leads on ratings volume (3.8K vs 477). Big Button Calculator Pro's advantage is in-app purchases (none vs 7) and rating (4.9 vs 4.6). On review sentiment, update cadence, ads 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

Haseba Calculator is free to download; Big Button Calculator Pro costs $9.99 up front. Haseba Calculator sells 7 in-app purchases, starting at $0.99 per 7 days. Big Button Calculator Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Big Button Calculator Pro holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Haseba Calculator has 3.8K ratings behind it against 477, so its average is the more settled of the two. Written reviews split almost evenly too, at 78% and 79% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
Haseba Calculator versus Big Button Calculator Pro: the parameters behind the verdict, then further details
ParameterHaseba CalculatorBig Button Calculator Pro
PriceFree — better$9.99
Rating4.6 (3.8K ratings)4.9 (477 ratings) — better
Positive reviews78.1% of reviews78.6% of reviews — better
Number of ratings3.8K — better477
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.015.2 — better
Further details — not scored
Size25 MB27 MB
Age rating4+4+
DeveloperAhmad AlmazeediCider Software LLC

Customer experience

Haseba Calculator

All ratings3,728 ratings
Positive88.4%
Neutral4.3%
Negative7.4%
Written reviews219 reviews
Positive78.1%
Neutral3.7%
Negative18.3%

Big Button Calculator Pro

All ratings463 ratings
Positive97.4%
Neutral1.3%
Negative1.3%
Written reviews14 reviews
Positive78.6%
Neutral7.1%
Negative14.3%

Bugs and requests

Haseba Calculator

Reported bugs

2 issues
  • Calculation errors with certain inputs
  • Inability to edit or copy results

Requested features

3 requests
  • Add history and editing capabilities
  • Support for hardware keyboard
  • Improve percentage calculation accuracy

Big Button Calculator Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Haseba Calculator

Subscriptions3
  • Voice Mode$0.997 Days
  • Haseba Voice Mode$2.991 Month
  • Haseba Voice Mode$19.991 Year
One-time4
  • Unlock Themes & Icons$0.99
  • HasebaPro$2.99
  • HasebaPro$3.99
Show 1 more
  • HasebaPro$4.99
None

Big Button Calculator Pro

No in-app purchases

Questions

Is Haseba Calculator free?
Haseba Calculator is free to download, with in-app purchases available.
Is Big Button Calculator Pro free?
Big Button Calculator Pro costs $9.99, with no in-app purchases.
Which has better reviews, Haseba Calculator or Big Button Calculator Pro?
Big Button Calculator Pro is rated higher. Haseba Calculator averages 4.6 out of 5 from 3.8K ratings, while Big Button Calculator Pro averages 4.9 from 477 ratings.
Do Haseba Calculator or Big Button Calculator Pro have ads?
Neither Haseba Calculator nor Big Button Calculator Pro shows ads.
Which is updated more often, Haseba Calculator or Big Button Calculator Pro?
Haseba Calculator ships an update every 2 months, and Big Button Calculator Pro every 2 months. Most recently, Haseba Calculator was updated on November 6, 2026 and Big Button Calculator Pro on November 2, 2026.

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