Comparison

Calculator Max vs SatsClock

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

Head to head
About

Calculator Max

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

Highlights
  • Basic and scientific calculators
  • History tape with export options
  • Handwritten notes and equation solving
  • Multitasking support on iPad
  • Customizable themes and app icons
  • Home Screen and Lock Screen widgets
Features
Read full description

Calculator Max makes both simple and complex calculations easy. It offers all calculators you’ll ever need in one carefully designed, uncluttered and easy-to-use package. Switching between calculators is buttery-smooth and natural. The basic calculator with big buttons swiftly handles everyday tasks. The more advanced scientific calculator is loaded with all important mathematical functions and constants. A history tape with your entries is comfortably accessible in all calculator modes. Thanks to it, you never lose track of what you’ve entered and the entries can be reused effortlessly in your calculations. The tape can also be exported to common formats and shared or printed. On the large screen of any iPad it is pure joy to make handwriting notes or draw your ideas right in the app. Write down any math equation and let the app calculate it for you in the blink of an eye. Or reuse any handwriting which you can easily convert to editable text. ————————— WHAT YOU GET ————————— /// POWERFUL CALCULATOR /// — Basic calculator with big buttons — Scientific calculator packed with functions and constants — History tape with the calculations at your fingertips in all modes — Extensive rounding options (e.g. two decimal places for accounting) — Up to 5 memory slots for frequent numbers — Plain Text, Monospaced Text, CSV, PDF and image export formats — Advanced export, share and print options — Scribble Pad on iPad for easy math equations solving, handwritten notes and sketches /// PRODUCTIVE WORKFLOW /// — Side tape layouts for easier long records handling — Clean and uncluttered interface with refined haptic feedback — Multitasking support on iPad for side-by-side work — External keyboard support for even faster input and app control — Universal app for all your iPhones, iPads and Macs — User interface precisely adapted for each device capabilities /// FAST ACCESS /// — Home Screen widgets with last calculations and memory — Widgets for direct access from the Lock Screen — Control Center and Lock Screen fast access buttons /// MIGHTY SCRIBBLE PAD /// — The right place for your quick notes and sketches — Easily calculates any written down math equation — Recognizes your handwriting and converts it to editable text — Fully-fledged notebook with unlimited number of paper sheets — Exportable as text, image or PDF — Optimized for your finger as well as Apple Pencil — Support for LAMY and Adonit styluses (on iPad) — Available on all iPad models /// EXTENSIVE CUSTOMIZATION /// — Handcrafted design themes with dark mode support — Loads of app icons you can easily choose from the best one for your Homescreen — Carefully selected sound sets Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SatsClock

Features
Read full description

Transform your iPhone into the ultimate Bitcoin dashboard with SatsClock - the first clock app designed exclusively for Bitcoin enthusiasts and the StandBy mode experience. PERFECT FOR STANDBY MODE Turn your charging iPhone into a stunning Bitcoin command center. Wake up to real-time price, block height, halving countdown, and mempool fees - all optimized for horizontal nightstand display. COMPLETE APPLE ECOSYSTEM • iPhone App - Full Bitcoin dashboard with 6 sci-fi themes • Home Screen Widgets - Small, medium & large • Apple Watch App - Dedicated watchOS interface • Watch Complications - All families supported • StandBy Mode - Optimized landscape layout 6 FUTURISTIC THEMES Each theme features unique fonts, colors & visual effects: 1. Bitcoin Orange - Warm glow with breathing animation 2. Matrix Green - Cyberpunk style with character flicker 3. Pure White - Minimalist with elegant shadows 4. Pixel Retro - 8-bit nostalgia with scanlines 5. Neon Tech - Chromatic aberration effects 6. Terminal Mono - Developer style with blinking cursor REAL-TIME BITCOIN METRICS • Live Price - USD updates every 15 seconds • Moscow Time - Sats per dollar (true Bitcoin standard) • Block Height - Current blockchain height • Halving Countdown - Blocks & days until next halving • Halving Progress - Visual progress indicator • Mempool Fees - Fast/medium/slow sat/vB rates • Satoshi Quotes - Wisdom from Bitcoin's creator 8 LANGUAGES English, 简体中文, 繁體中文, 日本語, 한국어, Deutsch, Español, Français CUSTOMIZABLE • Choose your favorite theme • Toggle visual effects • Adjust refresh interval (10-60s) • Keep screen on option • Show/hide quotes BUILT FOR SPEED • Mempool.space API integration • Smart caching for offline use • Battery-efficient updates • Instant theme switching • Smooth 60fps animations PRIVACY FIRST No accounts required No ads or tracking No subscriptions No in-app purchases All data from public APIs PERFECT FOR • Nightstand charging display • Quick Lock Screen glances • Trading desk monitor • Apple Watch complications • Bitcoin conversation starter BITCOIN ONLY Unlike crypto trackers with thousands of coins, SatsClock is laser-focused on Bitcoin. We believe "Bitcoin, not crypto" - every pixel designed for the ultimate single-asset experience. ONE-TIME PURCHASE Pay once, own forever. All future updates included. --- Data: Mempool.space API Requirements: iOS 17.0+, watchOS 10.0+ Philosophy: Bitcoin Standard. Timechain Certified.

Screenshots

Calculator Max4 screens
SatsClock4 screens

Verdict

The call

The clearest difference is price: Calculator Max at Free against SatsClock's $4.99. SatsClock's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 2 months). On ads, 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

Calculator Max is free to download; SatsClock costs $4.99 up front. Calculator Max sells 2 in-app purchases, starting at $4.99 per year. SatsClock asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator Max ships an update every 2 months, SatsClock every 2 weeks. The most recent releases landed on October 16, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator Max versus SatsClock: the parameters behind the verdict, then further details
ParameterCalculator MaxSatsClock
PriceFree — better$4.99
Rating4.3 (1.8K ratings) — better—
Positive reviews55.1% of reviews—
Number of ratings1.8K — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Apple Watch
Requires iOS15.0 — better16
Further details — not scored
Size126 MB9 MB
Age rating4+4+
DeveloperPavel Kozarek雪 蔺

Bugs and requests

Calculator Max

Reported bugs

3 issues
  • Crashes after iOS 26 update
  • Tape not visible/functional on iPhone
  • Calculator buttons/layout issues in split-screen mode

Requested features

5 requests
  • Left-handed mode
  • Backspace/edit functionality
  • Scientific calculator mode with tape
  • Tape annotation/labeling
  • Cloud/Dropbox sync for tape

SatsClock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Calculator Max

Subscriptions1
  • Calculator Max Pro7 Days trial$4.991 Year
One-time1
  • Calculator Max Pro$3.99
None

SatsClock

No in-app purchases

Questions

Is Calculator Max free?
Calculator Max is free to download, with in-app purchases available.
Is SatsClock free?
SatsClock costs $4.99, with no in-app purchases.
Do Calculator Max or SatsClock have ads?
Neither Calculator Max nor SatsClock shows ads.
Which is updated more often, Calculator Max or SatsClock?
Calculator Max ships an update every 2 months, and SatsClock every 2 weeks. Most recently, Calculator Max was updated on October 16, 2026 and SatsClock on September 29, 2026.

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