# Resistor color code calc vs Blynk IoT

The clearest difference is rating: Resistor color code calc at 5.0 against Blynk IoT's 4.5. Resistor color code calc also leads on in-app purchases (none vs 7) and review sentiment (67% vs 42%). Blynk IoT's advantage is ads (none vs shown) and ratings volume (819 vs 5). On price there is nothing between them.

Both are free to download. Blynk IoT sells 7 in-app purchases, starting at $6.99 per month. Resistor color code calc asks for nothing beyond the download.

Resistor color code calc holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Blynk IoT has 819 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 67% of Resistor color code calc's written reviews are positive against 42% of Blynk IoT's.

Resistor color code calc ships an update every 3 months, Blynk IoT monthly. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Resistor color code calc | Blynk IoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/resistor-color-code-calc/id1441211200/reviews)** | [4.5 (819 ratings)](https://appshunter.io/ios/app/blynk-iot/id1559317868/reviews) |
| Number of ratings | 5 | **819** |
| Positive reviews | **66.7% of reviews** | 42.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 13 MB | 83 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Blynk Technologies](https://appshunter.io/developer/808760484) |

## What reviewers say

### Resistor color code calc

[App page](https://appshunter.io/ios/app/resistor-color-code-calc/id1441211200)

This utility helps you determine the resistance value of resistors by interpreting their colored bands. It supports 3, 4, 5, and 6 band resistors, visually displaying your selections and the calculated resistance and tolerance.

**Highlights:** Calculates resistance for 3-6 band resistors, Visual band color selection, Displays resistance and tolerance, Aids electronics configuration, User-friendly interface

**Features:** Vision Pro support

**In-app purchases:** none


### Blynk IoT

[App page](https://appshunter.io/ios/app/blynk-iot/id1559317868)

Build custom IoT apps without coding using a drag-and-drop interface. Manage devices, users, and data remotely with a powerful web console and scalable cloud infrastructure. Supports over 400 hardware boards and various connection options.

**Highlights:** Drag-n-drop IoT app builder, Device and user management, OTA firmware updates, Secure cloud infrastructure, Hardware compatibility (400+ boards), Real-time alerts and automations

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blynk MAKER - Monthly | $6.99 | per month |
| Blynk Starter - Monthly | $29.00 | per month |
| Blynk PRO (40 users) Monthly | $48.99 | per month |
| Blynk MAKER - Yearly | $59.99 | per year |
| Blynk PRO (100 users) Monthly | $98.99 | per month |
| Blynk PRO (50 users) Monthly | $99.00 | per month |
| Blynk PRO (500 users) Monthly | $299.99 | per month |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Powerful IoT platform
- 🚀 Efficient for rapid prototyping
- 👍 Great for hobbyists and businesses
- 👍 Stable and reliable

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Unstable, crashes frequently
- 🤔 Confusing for beginners
- 🤔 Lacks flexibility compared to legacy version
- 🤔 Limited free features

**Reported bugs**

- Connectivity issues with devices
- Widgets not working as expected
- Account deletion without warning
- Incompatibility with older hardware

**Requested features**

- Dark mode option
- Bluetooth support
- Better documentation and tutorials
- Restore legacy app functionality
- Affordable pricing for hobbyists


## Frequently asked questions

### Is Resistor color code calc free?

Resistor color code calc is free to download, with no in-app purchases.

### Is Blynk IoT free?

Blynk IoT is free to download, with in-app purchases available.

### Which has better reviews, Resistor color code calc or Blynk IoT?

Resistor color code calc is rated higher. Resistor color code calc averages 5.0 out of 5 from 5 ratings, while Blynk IoT averages 4.5 from 819 ratings.

### Do Resistor color code calc or Blynk IoT have ads?

Resistor color code calc shows ads; Blynk IoT does not.

### Which is updated more often, Resistor color code calc or Blynk IoT?

Resistor color code calc ships an update every 3 months, and Blynk IoT monthly. Most recently, Resistor color code calc was updated on September 10, 2026 and Blynk IoT on September 22, 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.*