Countdown Widget Customizer vs Scientific Calqon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Countdown Widget Customizer
Easily track important upcoming events with customizable widgets for your home screen. Set up countdowns for weddings, birthdays, vacations, and more with a clean, elegant interface. Never miss a milestone with precise tracking of years, months, days, and even hours.
- Customizable home screen widgets
- Multiple countdown styles
- Track unlimited events
- Precise countdowns (years, months, days, hours)
- Simple, elegant interface
Read full descriptionHide full description
Countdown Widget makes your most important moments impossible to forget. Whether you’re counting down to your wedding, vacation, graduation, birthday, or any milestone, this beautifully designed widget keeps your date front and center right on your Home Screen! Features: • Stunning, clean, and minimal- customizable Home Screen widgets • Multiple countdown styles and layouts • Track unlimited events • Precise countdowns (years, months, days, hours, minutes) • Simple, elegant interface Make every moment leading up to your big day special.
Scientific Calqon
Read full descriptionHide full description
Scientific Calqon is a full scientific calculator, symbolic CAS, and graphing tool in one — built for students, engineers, and anyone who works with math. EXACT SYMBOLIC MATH (CAS) • Exact fractions and radicals: 1/3 + 1/6 → 1/2, √8 → 2√2 — no rounding errors • Symbolic derivatives (d/dx, d²/dx²) with full chain, product & quotient rules • Step-by-step derivative explanations • Symbolic integrals — by parts, substitution, partial fractions — plus definite integrals • solve: exact linear & quadratic roots, all complex roots of any polynomial • simplify, expand, factor, limits, Taylor series • Natural-language input: just type "derivative of x^2 sin x" SCIENTIFIC CALCULATOR • Full expression evaluation with correct precedence and implicit multiplication • Trig, inverse & hyperbolic functions; DEG / RAD / GRAD modes • Logs, roots, powers, factorials, nCr/nPr, mod, absolute value • Complex numbers: (2+3i)(1−i), √(−4), e^(iπ) = −1 • gcd, lcm, isprime, mean, median, variance, stddev and more • Memory keys, persistent history, live preview, Ans recall GRAPHING • Plot multiple functions y = f(x) on a fast, smooth canvas • Parametric x(t), y(t) and polar r(θ) modes • Pinch-zoom, pan, auto grid & labels — export as PNG or PDF MATRICES & LINEAR ALGEBRA • det, inverse, transpose, rref, rank, trace, powers, products • Solve Ax = b exactly — or detect "no solution" / "infinitely many" • Eigenvalues, eigenvectors, characteristic polynomial • Exact-fraction results throughout STATISTICS • Descriptive statistics, distributions, and regression UNITS & CONSTANTS • Converter across 11 categories: length, mass, temperature, time, speed, area, volume, energy, pressure, data, angle • 17 physical & mathematical constants — tap to copy DESIGN & PRIVACY • Gorgeous dark & light themes with subtle glassmorphism • Works fully offline — no account, no ads, no tracking FREE & PRO The scientific keypad, single-function graphing, matrices, and unit conversion are free forever. Calqon Pro unlocks the CAS with steps & natural language, statistics & distributions, multi-function graphs & export, and all themes — and everything is free to try for 7 days. Calqon Pro is an auto-renewing subscription ($2.99/month or $14.99/year). Payment is charged to your Apple ID. Cancel anytime in Settings. Terms of Use: https://www.pinclave.com/scientific-calqon/terms.html Privacy Policy: https://www.pinclave.com/scientific-calqon/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Countdown Widget Customizer at none against Scientific Calqon's 2. Scientific Calqon's advantage is iOS requirement (16.0 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
Both are free to download. Scientific Calqon sells 2 in-app purchases, starting at $2.99 per month. Countdown Widget Customizer asks for nothing beyond the download.
| Parameter | Countdown Widget Customizer | Scientific Calqon |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Blake Shaffou | NeuraPBX LLC |
In-app purchases
Countdown Widget Customizer
No in-app purchases
Scientific Calqon
- Calqon Pro Monthly$2.991 Month
- Calqon Pro Yearly$14.991 Year
Questions
Is Countdown Widget Customizer free?
Is Scientific Calqon free?
Do Countdown Widget Customizer or Scientific Calqon have ads?
Other comparisons















