# SpeakerFocus vs Resistor Color Code Calc Lite

The clearest difference is price: SpeakerFocus at Free against Resistor Color Code Calc Lite's $2.99. Resistor Color Code Calc Lite's advantage is update cadence (every 2 days vs every 2 weeks) and iOS requirement (15.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

SpeakerFocus is free to download; Resistor Color Code Calc Lite costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SpeakerFocus ships an update every 2 weeks, Resistor Color Code Calc Lite every 2 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SpeakerFocus | Resistor Color Code Calc Lite |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 1 MB | 31 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jarle Hansen](https://appshunter.io/developer/563222855) | [Murat Yasin YAZDIRAN](https://appshunter.io/developer/1835040365) |

## What reviewers say

### SpeakerFocus

[App page](https://appshunter.io/ios/app/speakerfocus/id6753089469)

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

**In-app purchases:** none


### Resistor Color Code Calc Lite

[App page](https://appshunter.io/ios/app/resistor-color-code-calc-lite/id6753876120)

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

**In-app purchases:** none


## Frequently asked questions

### Is SpeakerFocus free?

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

### Is Resistor Color Code Calc Lite free?

Resistor Color Code Calc Lite costs $2.99, with no in-app purchases.

### Do SpeakerFocus or Resistor Color Code Calc Lite have ads?

Neither SpeakerFocus nor Resistor Color Code Calc Lite shows ads.

### Which is updated more often, SpeakerFocus or Resistor Color Code Calc Lite?

SpeakerFocus ships an update every 2 weeks, and Resistor Color Code Calc Lite every 2 days. Most recently, SpeakerFocus was updated on October 24, 2026 and Resistor Color Code Calc Lite on October 8, 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.*