Comparison

CalcFast vs SimpleFrames

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

SimpleFrames

Features
Read full description

Simple Frame Extractor is an easy-to-use, cross-platform app that provides six carefully selected processing tools for content creators and everyday users. Core Features • Video Frame Extraction: Precisely capture any frame from a video, with batch export support in JPG format. • Video to GIF: Convert video clips into high-quality GIF animations, with adjustable frame rate. • GIF Frame Extraction: Extract individual frame images from GIF animations. • Live Photo Frame Extraction: Extract still images from Live Photos. • Video to Live Photo: Convert video clips into Live Photo format. • Audio Extraction: Extract audio files from videos, supporting multiple audio formats. Technical Advantages • Built with native iOS design language, supporting Dark Mode. • Hardware-accelerated processing ensures high efficiency and stability. • Batch processing support to handle multiple files at once. • Real-time preview for instant results. • Supports a wide range of import and export file formats. Whether you’re creating social media content, extracting video materials, or separating audio, Simple Frame Extractor provides a professional and reliable solution. User Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CalcFast3 screens
SimpleFrames4 screens

Verdict

The call

The clearest difference is in-app purchases: CalcFast at none against SimpleFrames's 4. SimpleFrames's advantage is iOS requirement (15.6 vs 18.0). On price, update cadence, ads 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. SimpleFrames sells 4 in-app purchases, starting at $0.99 per 7 days. CalcFast asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on September 19, 2026.

Scorecard2 real differences · 8 level
CalcFast versus SimpleFrames: the parameters behind the verdict, then further details
ParameterCalcFastSimpleFrames
PriceFreeFree
Rating4.2 (20 ratings) — better—
Positive reviews78.3% of reviews—
Number of ratings20 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.6 — better
Further details — not scored
Size6 MB3 MB
Age rating4+4+
DeveloperHannes Sverrisson越 张

In-app purchases

None

CalcFast

No in-app purchases

4 purchases

SimpleFrames

Subscriptions3
  • 简单抽帧周会员$0.997 Days
  • 简单抽帧月会员$2.991 Month
  • 简单抽帧年会员$17.991 Year
One-time1
  • 简单抽帧买断$29.99

Questions

Is CalcFast free?
CalcFast is free to download, with no in-app purchases.
Is SimpleFrames free?
SimpleFrames is free to download, with in-app purchases available.
Do CalcFast or SimpleFrames have ads?
Neither CalcFast nor SimpleFrames shows ads.
Which is updated more often, CalcFast or SimpleFrames?
CalcFast ships an update every 2 months, and SimpleFrames every 2 months. Most recently, CalcFast was updated on September 19, 2026 and SimpleFrames on September 19, 2026.

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