P.R.E.P. vs Scientific Calqon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
P.R.E.P.
This mobile and web-based solution digitizes emergency plans, making them accessible and updatable in real-time. It helps users meet regulatory requirements and ensures critical information is readily available when needed.
- Digital emergency plans
- Real-time updates
- Mobile accessibility
- Web-based solution
- Customizable plans
- Regulatory compliance
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HAPevolve’s Portable Response Emergency Plan (PREP) moves your emergency plan out of the three-ring binder and puts it at the fingertips of users who need it. This mobile, web-based, customizable, solution allows you to update your plans in real time, meet regulatory requirements, and ensure that users have the information they need immediately.
Scientific Calqon
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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: P.R.E.P. at none against Scientific Calqon's 2. P.R.E.P. also leads on iOS requirement (13.0 vs 16.0). 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. P.R.E.P. asks for nothing beyond the download.
| Parameter | P.R.E.P. | Scientific Calqon |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 26 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Safeguard Risk Solutions | NeuraPBX LLC |
In-app purchases
P.R.E.P.
No in-app purchases
Scientific Calqon
- Calqon Pro Monthly$2.991 Month
- Calqon Pro Yearly$14.991 Year
Questions
Is P.R.E.P. free?
Is Scientific Calqon free?
Do P.R.E.P. or Scientific Calqon have ads?
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