# iSmith — Understanding matching network

> Tool for understanding and calculating impedance matching networks using Smith charts. (iPhone/iPad app by Ryoun Chon Shin.)

- Source: https://appshunter.io/ios/app/ismith/id6444874930 (this page in markdown: same URL + `.md`)
- Developer: [Ryoun Chon Shin](https://appshunter.io/developer/1657565687)
- Category: Productivity, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 7 MB
- Languages: English
- Released: 2022-12-04
- Data updated: 2026-06-06
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/ismith/id6444874930/reviews.md

## What is iSmith?

Features:
- Read out Z, Y, VSWR, Q and Gamma from smith chart.
- Calculate 8 L-matching networks.
- Set matching target by touching smith chart.
- Calculate T & Pi matching pad.
- Learn the principle of impedance matching.
- dBm, Watts and Volts conversion
- VSWR Conversion

## Key features

- Read Smith chart parameters (Z, Y, VSWR, Q, Gamma)
- Calculate 8 L-matching networks
- Calculate T & Pi matching pads
- Set matching targets on Smith chart
- Learn impedance matching principles
- dBm, Watts, and Volts conversion
- VSWR conversion


## Frequently asked questions about iSmith

### What can iSmith calculate?

iSmith can calculate 8 different L-matching networks and T & Pi matching pads. It also allows you to read parameters like Z, Y, VSWR, Q, and Gamma directly from a Smith chart.

### Does iSmith have ads?

Yes, iSmith contains advertisements. It is available for free but supported by ads.

### What devices does iSmith support?

iSmith is available on iPhone and iPad devices.

### How often is iSmith updated?

The latest version, 1.0.3, was released on 2022-12-10, indicating recent updates. The app was initially released on 2022-12-04.

### What is the age rating for iSmith?

iSmith has an age rating of 4+, making it suitable for a wide range of users.

### Can I set my matching target directly on the Smith chart in iSmith?

Yes, iSmith allows you to set your desired matching target by simply touching the Smith chart interface.

### Does iSmith help in learning impedance matching?

Yes, iSmith includes features designed to help users learn the principles of impedance matching.

### What unit conversions does iSmith offer?

iSmith provides conversions for dBm, Watts, and Volts, as well as VSWR conversions.

## Version history (last 4 releases)

### 1.0.3 — 2022-12-10

Marketing Info added

### 1.0.2 — 2022-12-08

Supports Light Mode  and Dark Mode

### 1.0.1 — 2022-12-07

- Add advertisement

### 1.0 — 2022-12-02

No release notes.

## Apps similar to iSmith

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Electrocalc: electronics tools](https://appshunter.io/ios/app/electrocalc-electronics-tools/id1583600520) | 4.3 (3) | $2.99 | Productivity |
| [Smith Charts](https://appshunter.io/ios/app/smith-charts/id1602503719) | 3.7 (3) | $3.99 | Productivity |
| [splotRF](https://appshunter.io/ios/app/splotrf/id1599892560) | 5.0 (2) | Free | Productivity |
| [matchedRF](https://appshunter.io/ios/app/matchedrf/id1572692410) | — | $4.99 | Productivity |
| [R&S MobileView](https://appshunter.io/ios/app/r-and-s-mobileview/id1186696896) | 5.0 (1) | Free | Productivity |
| [RF toolbox: Electronics](https://appshunter.io/ios/app/rf-toolbox-electronics/id6757265018) | — | Free | Productivity |

## More apps by Ryoun Chon Shin

- [µConverter](https://appshunter.io/ios/app/converter/id1660046255)
- [Lotus](https://appshunter.io/ios/app/lotus/id1662119746)

All apps by Ryoun Chon Shin: https://appshunter.io/developer/1657565687

## Related topics

[ismith](https://appshunter.io/ios/topics/ismith)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*