# LED Resistor Calculator & SMD vs Resistor Decoder

The clearest difference is in-app purchases: Resistor Decoder at none against LED Resistor Calculator & SMD's 1. Resistor Decoder also leads on update cadence (every 9 days vs every 4 months). LED Resistor Calculator & SMD's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. LED Resistor Calculator & SMD sells 1 one-off in-app purchase. Resistor Decoder asks for nothing beyond the download.

LED Resistor Calculator & SMD ships an update every 4 months, Resistor Decoder every 9 days. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | LED Resistor Calculator & SMD | Resistor Decoder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Size | 60 MB | 72 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) | [ESDEV Teknoloji](https://appshunter.io/developer/1693053468) |

## What reviewers say

### LED Resistor Calculator & SMD

[App page](https://appshunter.io/ios/app/led-resistor-calculator-and-smd/id6758712387)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


### Resistor Decoder

[App page](https://appshunter.io/ios/app/resistor-decoder/id6786609623)

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

**In-app purchases:** none


## Frequently asked questions

### Is LED Resistor Calculator & SMD free?

LED Resistor Calculator & SMD is free to download, with in-app purchases available.

### Is Resistor Decoder free?

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

### Do LED Resistor Calculator & SMD or Resistor Decoder have ads?

Neither LED Resistor Calculator & SMD nor Resistor Decoder shows ads.

### Which is updated more often, LED Resistor Calculator & SMD or Resistor Decoder?

LED Resistor Calculator & SMD ships an update every 4 months, and Resistor Decoder every 9 days. Most recently, LED Resistor Calculator & SMD was updated on October 12, 2026 and Resistor Decoder on October 15, 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.*