Comparison

Advanced Calculator. HIgh vs FocusTimer

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

Head to head
About

Advanced Calculator. HIgh

This app combines a basic, scientific, and graphing calculator with a unit converter. It offers advanced mathematical functions, equation plotting, and seamless unit conversions for various needs. Access your calculation history across all modes.

Highlights
  • Basic, Scientific, and Graphing Calculators
  • Advanced Mathematical Functions
  • Real-time Function Plotting
  • Smart Unit Converter (Length, Weight, Temp, Area, Volume)
  • Calculation History
  • Customizable Expressions
Features
Read full description

Advanced Calculator revolutionizes mobile computing by integrating four essential calculation tools into one powerful application. Whether you're a student, professional, engineer, or need reliable everyday math—this app delivers everything you need. FOUR SPECIALIZED CALCULATORS, ONE SEAMLESS EXPERIENCE Basic Calculator - Everyday Math Made Simple Clean, intuitive interface for daily calculations. Large, easy-to-read buttons with smooth animations and instant results. Perfect for shopping, budgeting, tips, and quick arithmetic. Familiar layout means you start calculating immediately. Scientific Calculator - Advanced Mathematical Power Professional-grade computational capabilities at your fingertips. Execute trigonometric functions including sine, cosine, tangent, and hyperbolic counterparts (sinh, cosh, tanh). Access inverse trigonometric functions (sin⁻¹, cos⁻¹, tan⁻¹) with radian/degree mode switching. Perform logarithmic operations: natural log (ln), base-10 log, base-2 log. Calculate exponentials (e^x, 2^x, 10^x), roots (√, ∛), and powers (x², x³, x^y). Use mathematical constants π and e with precision. Factorial function handles combinatorial calculations. Absolute value and reciprocal operations add versatility. Revolutionary F(x) evaluator lets you input custom expressions and evaluate at specific x values—perfect for homework and problem-solving. Advanced Graphing Calculator - Visualize Mathematics Bring functions to life with our sophisticated graphing engine. Plot parabolas by adjusting coefficients in real-time. Switch to multi-function mode for graphing multiple equations simultaneously, each color-coded. Support complex expressions: polynomials (x², x³, x⁴), trigonometric functions (sin(x), cos(x), tan(x)), inverse trig, hyperbolic functions, logarithms, exponentials, roots, absolute values. Combine operations for sophisticated expressions like "sin(x²)" or "x*cos(x)". Interactive zoom controls explore functions in detail. Pan across the coordinate plane with customizable axis ranges. Intelligent rendering handles discontinuities and asymptotes automatically. Vertex highlighting identifies maximum and minimum points. Perfect for calculus, algebra, trigonometry courses. Smart Unit Converter - Instant Conversions Comprehensive converter handles everything automatically. Convert between metric and imperial across five categories: • Length: millimeters to miles (mm, cm, m, km, in, ft, yd, mi) • Weight: milligrams to tons (mg, g, kg, lb, oz, st, t) • Temperature: Celsius, Fahrenheit, Kelvin, Rankine • Area: square millimeters to acres (mm², cm², m², km², in², ft², acre) • Volume: milliliters to gallons (ml, L, m³, fl oz, cup, pt, qt, gal) Intuitive interface shows both units with instant bidirectional conversion. Quick swap reverses units with one tap. CALCULATION HISTORY - NEVER LOSE YOUR WORK Every calculation automatically preserved. Access complete timeline organized by calculator mode. Each entry shows expression, result, timestamp, and mode. Tap any calculation to recall its result. Swipe to delete entries or clear all history. Color-coded badges: blue (Basic), purple (Scientific), green (Graph), orange (Converter). PERFECT FOR EVERYONE • Students: Master homework from algebra through calculus • Engineers: Field calculations with confidence • Scientists: Complex computations accurately • Teachers: Demonstrate concepts visually • Finance Professionals: Quick calculations • DIY Enthusiasts: Convert measurements • Home Users: Everyday math effortlessly TECHNICAL EXCELLENCE Built with Swift and SwiftUI for optimal iOS performance. Precision floating-point arithmetic. Intelligent error handling. Sophisticated expression parser. Advanced rendering algorithms. Robust data persistence. Download Advanced Calculator today and experience the perfect fusion of power, elegance, and simplicity. From basic arithmetic to advanced graphing—we've got you covered!

About

FocusTimer

Features
Read full description

Know exactly where your hours go. FocusTimer turns your workday into clear, honest numbers. Clock in with one tap, run deep-work Pomodoro sessions, and see weekly and monthly timesheets you can export in seconds. ONE-TAP TIME TRACKING • Clock in and out from the Today screen, no setup • Live progress ring against your daily target • Predicted check-out time, updated as you work • Breaks tracked separately so totals stay honest • Manual entries, notes and color tags for clients, projects or subjects DEEP FOCUS WITH POMODORO • 25-minute focus sprints with short and long breaks • A long break after every fourth session INSIGHTS THAT MOTIVATE • Weekly and monthly overviews with overtime • Time by tag and daily average • Month heatmap: see which days hit your target • Streaks and achievement badges keep momentum going REPORTS IN SECONDS • Export HTML (email ready) or CSV (spreadsheet) • Any date range, plus backup and restore NEVER FORGET TO CLOCK OUT • Optional check-out reminder at the time you choose PRIVATE BY DESIGN • Works fully offline, no account needed • Your data stays on your device FOCUSTIMER PRO Unlock advanced statistics, the Pomodoro timer, achievements, reports and backups with a weekly or yearly subscription. The yearly plan includes a free trial for eligible new users. Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://emrekotun.github.io/time-wise-privacy-policy/

Screenshots

Advanced Calculator. HIgh4 screens
FocusTimer4 screens

Verdict

The call

The clearest difference is in-app purchases: Advanced Calculator. HIgh at none against FocusTimer's 3. FocusTimer's advantage is update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (17.0 vs 26.0). On price, 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. FocusTimer sells 3 in-app purchases, starting at $4.99 per 7 days. Advanced Calculator. HIgh asks for nothing beyond the download.

UpkeepUpdate frequency

Advanced Calculator. HIgh ships an update every 6 weeks, FocusTimer every 3 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 6 level
Advanced Calculator. HIgh versus FocusTimer: the parameters behind the verdict, then further details
ParameterAdvanced Calculator. HIghFocusTimer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size3 MB16 MB
Age rating4+4+
DeveloperMartha G KorraEMRE KOTUN

In-app purchases

None

Advanced Calculator. HIgh

No in-app purchases

3 purchases

FocusTimer

Subscriptions2
  • Premium Access$4.997 Days
  • Premium Access$29.991 Year
One-time1
  • Premium Lifetime Access$9.99

Questions

Is Advanced Calculator. HIgh free?
Advanced Calculator. HIgh is free to download, with no in-app purchases.
Is FocusTimer free?
FocusTimer is free to download, with in-app purchases available.
Do Advanced Calculator. HIgh or FocusTimer have ads?
Neither Advanced Calculator. HIgh nor FocusTimer shows ads.
Which is updated more often, Advanced Calculator. HIgh or FocusTimer?
Advanced Calculator. HIgh ships an update every 6 weeks, and FocusTimer every 3 weeks. Most recently, Advanced Calculator. HIgh was updated on October 24, 2026 and FocusTimer on October 27, 2026.

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