# LED Ohm Calc vs GuardXIS

The clearest difference is price: GuardXIS at Free against LED Ohm Calc's $0.99. GuardXIS also leads on iOS requirement (12.0 vs 15.6). LED Ohm Calc's advantage is update cadence (every 10 days vs every 4 weeks). On ads, in-app purchases and device support there is nothing between them.

GuardXIS is free to download; LED Ohm Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LED Ohm Calc ships an update every 10 days, GuardXIS every 4 weeks. The most recent releases landed on August 30, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | LED Ohm Calc | GuardXIS |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/led-ohm-calc/id390985541/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 weeks |
| Monetization | Paid | — |
| Size | 2 MB | 98 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mimi Apps&technologies](https://appshunter.io/developer/390985544) | [POLARIS ELECTRONIC](https://appshunter.io/developer/1801092826) |

## What reviewers say

### LED Ohm Calc

[App page](https://appshunter.io/ios/app/led-ohm-calc/id390985541)

This utility simplifies calculating LED resistors by handling various voltages, decimal values, and multiple LEDs. It offers intuitive input methods for power supply and LED ratings, making complex calculations straightforward.

**Highlights:** Calculate LED resistors, Handle various power supply voltages, Input decimal LED voltage ratings, Calculate current and wattage, Support for multiple LEDs, Intuitive slide bar and text input

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

**In-app purchases:** none


### GuardXIS

[App page](https://appshunter.io/ios/app/guardxis/id1298937498)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LED Ohm Calc free?

LED Ohm Calc costs $0.99, with no in-app purchases.

### Is GuardXIS free?

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

### Do LED Ohm Calc or GuardXIS have ads?

Neither LED Ohm Calc nor GuardXIS shows ads.

### Which is updated more often, LED Ohm Calc or GuardXIS?

LED Ohm Calc ships an update every 10 days, and GuardXIS every 4 weeks. Most recently, LED Ohm Calc was updated on August 30, 2026 and GuardXIS on September 9, 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.*