# LED Ohm Calc vs COLON

The clearest difference is price: COLON at Free against LED Ohm Calc's $0.99. COLON also leads on rating (5.0 vs 4.3) and review sentiment (88% vs 64%). LED Ohm Calc's advantage is update cadence (every 10 days vs every 29 months) and ratings volume (6 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

COLON 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.

COLON holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: LED Ohm Calc has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 64% of LED Ohm Calc's written reviews are positive against 88% of COLON's.

LED Ohm Calc ships an update every 10 days, COLON every 29 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | LED Ohm Calc | COLON |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/led-ohm-calc/id390985541/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/colon/id1601664426/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 64.3% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 29 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 8 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mimi Apps&technologies](https://appshunter.io/developer/390985544) | [Toshihide Miyake](https://appshunter.io/developer/1552651386) |

## 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


### COLON

[App page](https://appshunter.io/ios/app/colon/id1601664426)

A minimalist digital clock app that focuses on displaying the time in a large, clear format. Customize colors, fonts, and display options to suit your preferences. It offers essential features without unnecessary complexity.

**Highlights:** Large time display, Customizable background, text color, and font, 200 font options, Show/hide seconds, Minimalist design

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

**In-app purchases:** none


## Frequently asked questions

### Is LED Ohm Calc free?

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

### Is COLON free?

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

### Which has better reviews, LED Ohm Calc or COLON?

COLON is rated higher. LED Ohm Calc averages 4.3 out of 5 from 6 ratings, while COLON averages 5.0 from 1 ratings.

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

Neither LED Ohm Calc nor COLON shows ads.

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

LED Ohm Calc ships an update every 10 days, and COLON every 29 months. Most recently, LED Ohm Calc was updated on November 6, 2026 and COLON on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*