Comparison

kong calculator vs ReadableCalc

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

Head to head
About

kong calculator

Features
Read full description

It is a simple calculator that provides a calculation history function.

About

ReadableCalc

Features
Read full description

ReadableCalc is a calculator app that displays large numbersβ€”like 3 trillion 500 billionβ€”in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features β€’ Supports four basic operations (+, βˆ’, Γ—, Γ·) β€’ Displays results in English numeric units for easy readability β€’ Handles decimals and negative numbers β€’ DEL button for deleting one character at a time (Long press to clear the entire expression) β€’ Long press on expressions or results to copy β€’ Tap on the β€œreadable” result to toggle display between: β€’ Short scale / Long scale / Kanji numerals Additional features in landscape mode: β€’ β€œ00”, β€œ000”, and β€œ0000” buttons for quickly adding zeros β€’ β€œx²” and β€œx³” buttons for quick exponentiation Note: β€’ Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. β€’ Short scale and Long scale support numbers up to 10^198. β€’ Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.

Screenshots

kong calculator2 screens
ReadableCalc3 screens

Verdict

The call

The clearest difference is ads: ReadableCalc at none against kong calculator's shown. ReadableCalc also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

kong calculator ships an update every 4 days, ReadableCalc weekly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard2 real differences Β· 4 level
kong calculator versus ReadableCalc: the parameters behind the verdict, then further details
Parameterkong calculatorReadableCalc
PriceFreeFree
Update frequencyEvery 4 days β€” betterWeekly
AdsYesNo β€” better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 β€” better
Further details β€” not scored
Size20 MB28 MB
Age rating4+4+
DeveloperChangyeol SeoYONAGARE LAB

In-app purchases

None

kong calculator

No in-app purchases

None

ReadableCalc

No in-app purchases

Questions

Is kong calculator free?
kong calculator is free to download, with no in-app purchases.
Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Do kong calculator or ReadableCalc have ads?
kong calculator shows ads; ReadableCalc does not.
Which is updated more often, kong calculator or ReadableCalc?
kong calculator ships an update every 4 days, and ReadableCalc weekly. Most recently, kong calculator was updated on October 6, 2026 and ReadableCalc on October 7, 2026.

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