Comparison

CalcFast vs Pebbl

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

Head to head
About

CalcFast

A fast and elegant calculator for Apple devices that displays your calculation history. It offers a Today Extension for quick access and supports Apple Watch, external keyboards, and VoiceOver.

Highlights
  • Calculation history display
  • Today Extension for quick calculations
  • Apple Watch app
  • Dark/light mode selection
  • External keyboard support
  • VoiceOver support
Features
Read full description

Fast and simple calculator for iPad, iPhone and Apple Watch that shows the calculation history, includes a Today Extension that allows for fast calculation by swiping down and 3D Touch for quick interactions. Numbers are formatted for your country, i.e. period in the US and comma in Europe. Ever lost your train of thought half way through a calculation and thought how handy it would be to review your calculations. The aim of this Calculator is to be fast, elegant and simple. Features: - The calculator can open side by side or over other apps in iPadOS. - Select dark or light mode. - External keyboard support. - Smart Apple Watch Calculator included. - Light weight Today Extension included. - Calculations shown when input and on tape. - Key click confirms pressing of buttons, which may be turned off. - Previous calculation is repeated when the equal sign is pressed. - Numbers are shown in local format, depending on your Region Formats, i.e. comma used in Europe. The number of decimal digits may be set in the Settings. - VoiceOver is supported. - Calculations Tape may be deleted by Tapping on it.

About

Pebbl

Features
Read full description

Pebbl is a powerful notepad calculator. Type naturally, get instant answers. - Type math like you think: "5 plus 3" or "20% off $50" - Convert units: "5 miles to km", "100°F in celsius" - Live currency conversion with daily updated rates - Variables: set "price = 20" and use it in later lines - Sum and average entire sections - Built-in functions: sqrt, sin, cos, log, and more - Multiple documents, auto-saved - 100% private, all calculations happen on your device

Screenshots

CalcFast3 screens
Pebbl4 screens

Verdict

The call

The clearest difference is update cadence: Pebbl at weekly against CalcFast's every 2 months. Pebbl also leads on iOS requirement (15.1 vs 18.0). 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

CalcFast ships an update every 2 months, Pebbl weekly. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
CalcFast versus Pebbl: the parameters behind the verdict, then further details
ParameterCalcFastPebbl
PriceFreeFree
Rating4.2 (20 ratings) — better—
Positive reviews78.3% of reviews—
Number of ratings20 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size6 MB31 MB
Age rating4+4+
DeveloperHannes SverrissonIVAN ALEJANDRO MUNGUIA CRUZ

In-app purchases

None

CalcFast

No in-app purchases

None

Pebbl

No in-app purchases

Questions

Is CalcFast free?
CalcFast is free to download, with no in-app purchases.
Is Pebbl free?
Pebbl is free to download, with no in-app purchases.
Do CalcFast or Pebbl have ads?
Neither CalcFast nor Pebbl shows ads.
Which is updated more often, CalcFast or Pebbl?
CalcFast ships an update every 2 months, and Pebbl weekly. Most recently, CalcFast was updated on October 13, 2026 and Pebbl on October 2, 2026.

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