Comparison

Divisors 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

Divisors

Read full description

This app can tell you if a number between 0 and 20000 is prime or not. It can also determine all divisors of any number less than 10000000. Fancy a game? Then you can try the quiz and collect points. Siri Shortcuts are also supported: You can also use your shortcuts to check whether your number is a prime number or not. Another shortcut can give you all the prime numbers from 0 to your entered number in a list. A shortcut can be used to determine all divisors of any number less than 100000, so the shortcut doesn't take too long.

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

Divisors4 screens
ReadableCalc3 screens

Verdict

The call

The clearest difference is iOS requirement: ReadableCalc at 12.0 against Divisors's 16.0. On price, update cadence, ads and in-app purchases 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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

Scorecard1 real difference Β· 5 level
Divisors versus ReadableCalc: the parameters behind the verdict, then further details
ParameterDivisorsReadableCalc
PriceFreeFree
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.012.0 β€” better
Further details β€” not scored
Size7 MB28 MB
Age rating4+4+
DeveloperDORU SULARYONAGARE LAB

In-app purchases

None

Divisors

No in-app purchases

None

ReadableCalc

No in-app purchases

Questions

Is Divisors free?
Divisors is free to download, with no in-app purchases.
Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Do Divisors or ReadableCalc have ads?
Neither Divisors nor ReadableCalc shows ads.
Which is updated more often, Divisors or ReadableCalc?
Divisors ships an update weekly, and ReadableCalc weekly. Most recently, Divisors was updated on November 12, 2026 and ReadableCalc on November 8, 2026.

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