Comparison

Y+ Calculator vs sci.calculator

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

Head to head
About

Y+ Calculator

This app calculates the necessary grid spacing for computational fluid dynamics (CFD) simulations. It helps engineers determine near-wall cell height for accurate viscous flow computations. Supports both SI and Imperial units.

Highlights
  • Calculate grid spacing for target y+ values
  • Supports viscous CFD computations
  • Works in SI or Imperial units
  • Resets to sea-level conditions
  • Based on established fluid mechanics theory
Features
Read full description

Y+ Calculator is a handy tool for calculating the grid spacing at a wall to achieve a target y+ value for viscous computational fluid dynamics (CFD) computations. Simply specify the flow conditions, the desired y+ value, and compute your grid spacing. If you are an engineer running viscous CFD computations, achieving a target value for y+ in your grid is essential for both resolved and wall function grids for accurate results. Save time by computing your near-wall cell height for the boundary layer before generating your grid. The Y+ Calculator works in either SI or Imperial units and quickly resets to sea-level conditions. This utility is brought to you by Cadence Design Systems. Note: Computations are based on flat-plate boundary layer theory from Frank M. White’s Fluid Mechanics 5th edition, page 467.

About

sci.calculator

Features
Read full description

A stylish yet powerful scientific calculator. The app is designed with a single-screen layout for simple and intuitive operation. Calculation history is saved and can be reused easily. Results are shown in both mathematical notation and decimal format. 【Main Features】 • Basic arithmetic, modulo, trigonometric functions • Exponential, logarithmic, power and root calculations • Unit conversion and 47 scientific constants (CODEC2022) • Prime factorization, GCD and LCM • Binary, octal and hexadecimal calculations with logical operations • 8 memory slots • Permutations, combinations, and pseudo-random numbers • Systems of linear equations (up to 4 variables) • Polynomial equations (up to 4th degree) • Equation solving using Newton’s method • Time and angle calculations • External keyboard support 【Designed for Ease of Use】 • Unit conversion includes intuitive units such as “Tokyo Dome volume,” light-years, and cooking measurements. • Choose from 6 color themes to match your iPhone or iPad. • Quick switching between RAD/DEG and number bases on a single screen. • Supports iPad multitasking, allowing calculations alongside other apps. Clean, readable, and efficient. A scientific calculator that combines functionality with a modern design.

Screenshots

Y+ Calculator2 screens
sci.calculator3 screens

Verdict

The call

The clearest difference is in-app purchases: Y+ Calculator at none against sci.calculator's 1. Y+ Calculator also leads on iOS requirement (9.0 vs 15.0). sci.calculator's advantage is update cadence (every 5 weeks vs every 8 months). 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. sci.calculator sells 1 one-off in-app purchase. Y+ Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Y+ Calculator ships an update every 8 months, sci.calculator every 5 weeks. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Y+ Calculator versus sci.calculator: the parameters behind the verdict, then further details
ParameterY+ Calculatorsci.calculator
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size18 MB49 MB
Age rating4+4+
DeveloperCadence Design Systems, Inc.Yukihiro Shioya

In-app purchases

None

Y+ Calculator

No in-app purchases

1 purchases

sci.calculator

One-time1
  • remove Ads$1.99

Questions

Is Y+ Calculator free?
Y+ Calculator is free to download, with no in-app purchases.
Is sci.calculator free?
sci.calculator is free to download, with in-app purchases available.
Do Y+ Calculator or sci.calculator have ads?
Neither Y+ Calculator nor sci.calculator shows ads.
Which is updated more often, Y+ Calculator or sci.calculator?
Y+ Calculator ships an update every 8 months, and sci.calculator every 5 weeks. Most recently, Y+ Calculator was updated on October 21, 2026 and sci.calculator on October 16, 2026.

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