Comparison

kong calculator vs Smart Calc+

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

Head to head

simple calculator

Smart Calculator App

About

kong calculator

Features

Read full description

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

About

Smart Calc+

Read full description

Your ultimate tool for basic algebra, trigonometry (sin, cos), logarithms (log), and more. Perform quick and accurate calculations with a built-in history log to keep track of all your calculations.

Screenshots

kong calculator2 screens

Smart Calc+3 screens

Verdict

The call

The clearest difference is ads: Smart Calc+ at none against kong calculator's shown. Smart Calc+ also leads on iOS requirement (13.4 vs 15.0). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

kong calculator ships an update every 4 days, Smart Calc+ every 3 days. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 4 level

kong calculator versus Smart Calc+: the parameters behind the verdict, then further details
Parameter	kong calculator	Smart Calc+
Price	Free	Free
Update frequency	Every 4 days	Every 3 days — better
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	13.4 — better
Further details — not scored
Size	20 MB	22 MB
Age rating	4+	4+
Developer	Changyeol Seo	Rahman Usta

In-app purchases

None

kong calculator

No in-app purchases

None

Smart Calc+

No in-app purchases

Questions

Is kong calculator free?

kong calculator is free to download, with no in-app purchases.

Is Smart Calc+ free?

Smart Calc+ is free to download, with no in-app purchases.

Do kong calculator or Smart Calc+ have ads?

kong calculator shows ads; Smart Calc+ does not.

Which is updated more often, kong calculator or Smart Calc+?

kong calculator ships an update every 4 days, and Smart Calc+ every 3 days. Most recently, kong calculator was updated on October 27, 2026 and Smart Calc+ on October 15, 2026.