Comparison

Calc The App vs Octodecuple Calc

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

Head to head

Calc The App

Fast, no-ads calculator

About

Calc The App

Features

Read full description

Calc the app -- a fast, clean, ad-free calculator. • Instant results & big buttons • Mesmerising Haptic feedback & Sounds • History tape with copy/share • Percent & tax helpers • Themes: light/dark • iPad multitasking Always free, no ads. Optional tips support development.

About

Octodecuple Calc

Features

Read full description

Display 18 calculators and perform calculations with each one.

Screenshots

Calc The App4 screens

Octodecuple Calc1 screens

Verdict

The call

The clearest difference is in-app purchases: Octodecuple Calc at none against Calc The App's 3. Octodecuple Calc also leads on update cadence (every 2 weeks vs every 25 months). Calc The App's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Calc The App sells 3 one-off in-app purchases. Octodecuple Calc asks for nothing beyond the download.

UpkeepUpdate frequency

Calc The App ships an update every 25 months, Octodecuple Calc every 2 weeks. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 3 level

Calc The App versus Octodecuple Calc: the parameters behind the verdict, then further details
Parameter	Calc The App	Octodecuple Calc
Price	Free	Free
Update frequency	Every 25 months	Every 2 weeks — better
Ads	No — better	Yes
In-app purchases	Yes	No — better
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.6	15.8.3 — better
Further details — not scored
Size	3 MB	36 MB
Age rating	4+	4+
Developer	Tomasz Lukaszyk	Hideaki Uchikoshi

In-app purchases

3 purchases

Calc The App

One-time3

Espresso$0.99
Coffee$2.99
Croissant$4.99

None

Octodecuple Calc

No in-app purchases

Questions

Is Calc The App free?

Calc The App is free to download, with in-app purchases available.

Is Octodecuple Calc free?

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

Do Calc The App or Octodecuple Calc have ads?

Octodecuple Calc shows ads; Calc The App does not.

Which is updated more often, Calc The App or Octodecuple Calc?

Calc The App ships an update every 25 months, and Octodecuple Calc every 2 weeks. Most recently, Calc The App was updated on October 4, 2026 and Octodecuple Calc on October 10, 2026.