# Calculator Sharp vs ODE Solver +

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

Calculator Sharp ships an update every 5 months, ODE Solver + weekly. The most recent releases landed on September 19, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Calculator Sharp | ODE Solver + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/calculator-sharp/id882461576/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/ode-solver-plus/id1549447510/reviews) |
| Number of ratings | **5** | 3 |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Ad-supported | Ad-supported |
| Size | 31 MB | 11 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [Takahiko Nakade](https://appshunter.io/developer/1513184888) |

## What reviewers say

### Calculator Sharp

[App page](https://appshunter.io/ios/app/calculator-sharp/id882461576)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ODE Solver +

[App page](https://appshunter.io/ios/app/ode-solver-plus/id1549447510)

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

**In-app purchases:** none


## Frequently asked 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 September 19, 2026 and ODE Solver + on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*