# 555 Calc vs GoVoceFM

The clearest difference is rating: 555 Calc at 4.0 against GoVoceFM's 1.0. 555 Calc also leads on ratings volume (3 vs 1). GoVoceFM's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases and device support there is nothing between them.

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

555 Calc holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | 555 Calc | GoVoceFM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/555-calc/id868058244/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/govocefm/id1583873032/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 20 months | — |
| Monetization | Ad-supported | **Free** |
| Size | 18 MB | 25 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jibiki Works](https://appshunter.io/developer/556845808) | [小英 向](https://appshunter.io/developer/1446722738) |

## What reviewers say

### 555 Calc

[App page](https://appshunter.io/ios/app/555-calc/id868058244)

This utility app helps engineers and hobbyists calculate resistor values for circuits using the Timer IC 555. Simply input frequency, duty ratio, and capacitor values to get the required resistor outputs.

**Highlights:** Calculate resistor values, Input frequency, Input duty ratio, Input capacitor value, Timer IC 555 circuit design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### GoVoceFM

[App page](https://appshunter.io/ios/app/govocefm/id1583873032)

Easily adjust the radio frequency for voice control devices to avoid interference. Select the optimal frequency between 87.5MHz and 102.5MHz for clear sound.

**Highlights:** Change radio frequency, Adjust FM band (87.5MHz-102.5MHz), Avoid noise interference, Optimize sound quality, Compatible with GoVoce voice control products

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 555 Calc free?

555 Calc is free to download, with no in-app purchases.

### Is GoVoceFM free?

GoVoceFM is free to download, with no in-app purchases.

### Which has better reviews, 555 Calc or GoVoceFM?

555 Calc is rated higher. 555 Calc averages 4.0 out of 5 from 3 ratings, while GoVoceFM averages 1.0 from 1 ratings.

### Do 555 Calc or GoVoceFM have ads?

555 Calc shows ads; GoVoceFM does not.

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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.*