Comparison

IsI Calculator vs CalcN

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

Head to head

About

IsI Calculator

Features

Read full description

This app offers a complete calculator with many well-known features for your everyday calculations required. functions: addition subtraction multiplication Division Percent account Potentiation high 2 and 3 Since Version 1.2 the app is now useable on Apple Watch.

About

CalcN

A straightforward calculator app designed for ease of use with large buttons. It simplifies basic calculations, including percentage functions, making it ideal for quick arithmetic tasks.

Highlights

Large buttons
Easy to use
Percentage calculation
Basic arithmetic

Features

Read full description

Ein einfacher Taschenrechner, große Tasten, einfachste Handhabung, Prozentrechnung.

Screenshots

IsI Calculator2 screens

CalcN1 screens

Verdict

The call

The clearest difference is update cadence: IsI Calculator at fortnightly against CalcN's every 5 months. IsI Calculator also leads on iOS requirement (9.0 vs 15.6). On price, ads, 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

IsI Calculator ships an update fortnightly, CalcN every 5 months. Both last shipped on November 6, 2026.

Scorecard2 real differences · 6 level

IsI Calculator versus CalcN: the parameters behind the verdict, then further details
Parameter	IsI Calculator	CalcN
Price	Free	Free
Positive reviews	—	100.0% of reviews
Update frequency	Fortnightly — better	Every 5 months
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod, Apple Watch — better	iPhone, iPad, iPod
Requires iOS	9.0 — better	15.6
Further details — not scored
Size	15 MB	1 MB
Age rating	4+	4+
Developer	Dominic Barra	RG-EDV

In-app purchases

None

IsI Calculator

No in-app purchases

None

CalcN

No in-app purchases

Questions

Is IsI Calculator free?

IsI Calculator is free to download, with no in-app purchases.

Is CalcN free?

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

Do IsI Calculator or CalcN have ads?

Neither IsI Calculator nor CalcN shows ads.

Which is updated more often, IsI Calculator or CalcN?

IsI Calculator ships an update fortnightly, and CalcN every 5 months. Most recently, IsI Calculator was updated on November 6, 2026 and CalcN on November 6, 2026.