Comparison

Calculator Sharp vs ODE Solver +

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

Head to head
About

Calculator Sharp

This calculator app offers ultra-high precision with up to 37 digits of accuracy. It supports a wide range of complex mathematical functions, including trigonometric, logarithmic, and integral operations, along with step-by-step calculation display and undo/redo functionality.

Highlights
  • Ultra-high precision (37 digits)
  • Supports complex mathematical operations
  • Displays calculation steps
  • Undo and redo functionality
  • Multiple number base conversions
  • WYSIWYG interface
Features
Read full description

Calculator Sharp is a feature-rich, simple and practical operation of text calculator. Calculator tool Features : Ultra-high-precision, The accuracy of commonly calculator is 15, But Calculator Sharp can reach 37 accuracy. WYSIWYG glance. Easy to use, low threshold, for the majority of students and staff to use Support displays the calculated step function Support undo and anti- undo function Support flexible and complex calculations expressions. Specific Features * Support for the basic arithmetic operators * Support exponentiation * Support for radical sign operation * Support for logarithm operations * Support factorial and double factorial operator * Support Permutation and combination * Support trigonometric and inverse trigonometric * Support hyperbolic functions and inverse hyperbolic functions * Support for sum method and average method * Support for the maximum and minimum approach * Support for the greatest common divisor and least common multiple * Support for remainder * Supports integer interception , rounding up and rounding down to rounding methods. * Support random number and range of random numbers * Support summation (Σ) and quadrature (Π) op * Support definite integral (∫) operation * Support convert degrees to radians and radians to degrees operator * Support for binary, octal, decimal, hexadecimal conversion between. * Support degrees (DEG) and radians (RAD) two calculation modes * Support rounded to the decimal digits function * Supports Undo and anti-undo function. * Support the cursor forward and backward functions * Support clear and delete the previous character feature. * Support slide down keyboard and display the calculation steps function. Calculator Sharp for OS X:https://itunes.apple.com/us/app/calc-sharp/id888324648?ls=1&mt=12

About

ODE Solver +

This utility app calculates ordinary differential equations using the Runge-Kutta method. It offers a step width of 0.01 for its calculations.

Highlights
  • Ordinary differential equation calculation
  • Runge-Kutta method
  • Step width 0.01
Read full description

It is calculated using Runge-Kutta method (step width 0.01).

Screenshots

Calculator Sharp2 screens
ODE Solver +3 screens

Verdict

The call

The clearest difference is rating: Calculator Sharp at 5.0 against ODE Solver +'s 3.7. Calculator Sharp also leads on iOS requirement (12.0 vs 14.0). ODE Solver +'s advantage is update cadence (weekly vs every 5 months). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Calculator Sharp holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

UpkeepUpdate frequency

Calculator Sharp ships an update every 5 months, ODE Solver + weekly. The most recent releases landed on August 30, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator Sharp versus ODE Solver +: the parameters behind the verdict, then further details
ParameterCalculator SharpODE Solver +
PriceFreeFree
Rating5.0 (5 ratings) — better3.7 (3 ratings)
Positive reviews93.8% of reviews—
Number of ratings5 — better3
Update frequencyEvery 5 monthsWeekly — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size31 MB11 MB
Age rating4+4+
Developer锦文 游Takahiko Nakade

Customer experience

Calculator Sharp

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive93.8%
Neutral0.0%
Negative6.3%

ODE Solver +

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Calculator Sharp

No in-app purchases

None

ODE Solver +

No in-app purchases

Questions

Is Calculator Sharp free?
Calculator Sharp is free to download, with no in-app purchases.
Is ODE Solver + free?
ODE Solver + is free to download, with no in-app purchases.
Which has better reviews, Calculator Sharp or ODE Solver +?
Calculator Sharp is rated higher. Calculator Sharp averages 5.0 out of 5 from 5 ratings, while ODE Solver + averages 3.7 from 3 ratings.
Do Calculator Sharp or ODE Solver + have ads?
Both Calculator Sharp and ODE Solver + show ads.
Which is updated more often, Calculator Sharp or ODE Solver +?
Calculator Sharp ships an update every 5 months, and ODE Solver + weekly. Most recently, Calculator Sharp was updated on August 30, 2026 and ODE Solver + on September 25, 2026.

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