# iSolveModel vs Power Electronics

The clearest difference is price: Power Electronics at Free against iSolveModel's $9.99. iSolveModel's advantage is in-app purchases (none vs 6). On rating, ratings volume, update cadence and ads there is nothing between them.

Power Electronics is free to download; iSolveModel costs $9.99 up front. Power Electronics sells 6 in-app purchases, starting at $9.99 per month. iSolveModel asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for iSolveModel against 5.0 for Power Electronics. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

iSolveModel ships an update every 4 months, Power Electronics every 2 months. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | iSolveModel | Power Electronics |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/isolvemodel/id387627473/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/power-electronics/id6737322555/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 5 MB | 22 MB |
| Requires iOS | 17.1 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MINDTech](https://appshunter.io/developer/382887010) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### iSolveModel

[App page](https://appshunter.io/ios/app/isolvemodel/id387627473)

This app offers a powerful linear programming solver for iOS devices, utilizing the simplex algorithm and an integrated MIP solver for integer variables. It's designed for students and professionals in operations research and related fields, allowing easy model creation and sharing.

**Highlights:** Linear programming solver, Simplex algorithm, Integrated MIP solver, Sensitivity analysis, iTunes File Sharing, Email model/solution transfer, Text-based model documents

**Features:** macOS Compatibility

**In-app purchases:** none


### Power Electronics

[App page](https://appshunter.io/ios/app/power-electronics/id6737322555)

This quiz app covers over 70 topics in power electronics, including switches, drive circuits, regulators, and various electronic components. It's designed to help users master the subject through interactive learning.

**Highlights:** Over 70 power electronics topics, Covers switches, drive circuits, regulators, Detailed component listings, Interactive quiz format, Master power electronics concepts

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is iSolveModel free?

iSolveModel costs $9.99, with no in-app purchases.

### Is Power Electronics free?

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

### Which has better reviews, iSolveModel or Power Electronics?

iSolveModel and Power Electronics are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do iSolveModel or Power Electronics have ads?

Neither iSolveModel nor Power Electronics shows ads.

### Which is updated more often, iSolveModel or Power Electronics?

iSolveModel ships an update every 4 months, and Power Electronics every 2 months. Most recently, iSolveModel was updated on September 12, 2026 and Power Electronics on September 18, 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.*