# Sec-Hz Converter

> Sec-Hz Converter (iPhone/iPad app by Hiroki Ishiura.)

- Source: https://appshunter.io/ios/app/sec-hz-converter/id574183441 (this page in markdown: same URL + `.md`)
- Developer: [Hiroki Ishiura](https://appshunter.io/developer/335773211)
- Category: Utilities, Productivity
- Price: $0.99
- Age rating: 4+
- Requires: iOS 27.0 · 2 MB
- Languages: American English, Japanese
- Released: 2012-11-05
- Data updated: 2026-10-27
- User reviews in markdown: https://appshunter.io/ios/app/sec-hz-converter/id574183441/reviews.md

## What is Sec?

'Sec-Hz Converter' convert between frequency and period with simply and quickly.

## Is Sec safe?

Not enough ratings yet to assess Sec.

## Is Sec legit?

Sec-Hz Converter appears to be a legitimate app. The AppsHunter Legitimacy Score for Sec is 90 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sec-hz-converter/id574183441/reviews.md

### 3/5 — 愛用しています

*2015-04-07*

仕事で組込みマイコン＆センサーを扱っている為、非常に重宝しています。
１点改善をお願いできるのであれば、値が循環小数等になった場合に
フォントが非常に小さくなるので、私のように老眼が始まっている人間には
読むのが非常に厳しくなります。有効桁は表示領域の範囲で充分ですので
フォントが小さくならない設定があると、とても助かります。

## Version history (last 5 releases)

### 3.0 — 2026-10-27

Supported iOS 27.

### 2.2 — 2019-02-24

Supported iOS 12.

### 2.1.357 — 2016-01-20

Changed the app display name.

### 2.0.342 — 2016-01-09

Supported iOS 9.

### 1.0.203 — 2012-11-05

No release notes.

## More apps by Hiroki Ishiura

- [Simple Hex Calc](https://appshunter.io/ios/app/simple-hex-calc/id335773208)
- [Unix Time Converter](https://appshunter.io/ios/app/unix-time-converter/id376631084)
- [Sapporo Rescue Map](https://appshunter.io/ios/app/sapporo-rescue-map/id923693150)
- [PLAY OPC](https://appshunter.io/ios/app/play-opc/id999316498)

All apps by Hiroki Ishiura: https://appshunter.io/developer/335773211

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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 2026-10-27.*