# GraphCalcPro2Go vs ODE Solver +

The clearest difference is rating: GraphCalcPro2Go at 4.6 against ODE Solver +'s 4.0. GraphCalcPro2Go also leads on ads (none vs shown) and ratings volume (42 vs 4). ODE Solver +'s advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. GraphCalcPro2Go sells 1 one-off in-app purchase. ODE Solver + asks for nothing beyond the download.

GraphCalcPro2Go holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: GraphCalcPro2Go has 42 ratings behind it against 4, so its average is the more settled of the two.

GraphCalcPro2Go ships an update every 3 months, ODE Solver + weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | GraphCalcPro2Go | ODE Solver + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (42 ratings)](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/ode-solver-plus/id1549447510/reviews) |
| Number of ratings | **42** | 4 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 9 MB | 11 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Starware Software LLC](https://appshunter.io/developer/988250389) | [Takahiko Nakade](https://appshunter.io/developer/1513184888) |

## What reviewers say

### GraphCalcPro2Go

[App page](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099)

This advanced scientific calculator offers ultra-high precision and a wide range of functions, replicating expensive handheld devices with added iOS capabilities. It supports both standard and RPN modes, includes built-in constants, and syncs across devices via iCloud. Users can also create graphs and share calculations.

**Highlights:** Ultra high precision and range, Standard (in-fix) and RPN modes, Built-in constants and unit conversions, iCloud sync across devices, Create and share graphs, Apple Watch compatibility

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### 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 GraphCalcPro2Go free?

GraphCalcPro2Go is free to download, with in-app purchases available.

### Is ODE Solver + free?

ODE Solver + is free to download, with no in-app purchases.

### Which has better reviews, GraphCalcPro2Go or ODE Solver +?

GraphCalcPro2Go is rated higher. GraphCalcPro2Go averages 4.6 out of 5 from 42 ratings, while ODE Solver + averages 4.0 from 4 ratings.

### Do GraphCalcPro2Go or ODE Solver + have ads?

ODE Solver + shows ads; GraphCalcPro2Go does not.

### Which is updated more often, GraphCalcPro2Go or ODE Solver +?

GraphCalcPro2Go ships an update every 3 months, and ODE Solver + weekly. Most recently, GraphCalcPro2Go was updated on October 24, 2026 and ODE Solver + on October 24, 2026.

---

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