# Blynk IoT vs Electronic Circuits Calc Pro

The clearest difference is price: Blynk IoT at Free against Electronic Circuits Calc Pro's $4.99. Electronic Circuits Calc Pro's advantage is in-app purchases (none vs 7) and chart position (#193 vs unranked). On update cadence and ads there is nothing between them.

Blynk IoT is free to download; Electronic Circuits Calc Pro costs $4.99 up front. Blynk IoT sells 7 in-app purchases, starting at $6.99 per month. Electronic Circuits Calc Pro asks for nothing beyond the download.

Blynk IoT ships an update monthly, Electronic Circuits Calc Pro every 6 weeks. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Blynk IoT | Electronic Circuits Calc Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.5 (819 ratings)](https://appshunter.io/ios/app/blynk-iot/id1559317868/reviews)** | — |
| Number of ratings | **819** | — |
| Positive reviews | 42.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | **#193** |
| Size | 83 MB | 19 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Blynk Technologies](https://appshunter.io/developer/808760484) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### 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


### Electronic Circuits Calc Pro

[App page](https://appshunter.io/ios/app/electronic-circuits-calc-pro/id1658493129)

**Currently charting:** #193 Top Paid · Utilities (US App Store)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Blynk IoT free?

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

### Is Electronic Circuits Calc Pro free?

Electronic Circuits Calc Pro costs $4.99, with no in-app purchases.

### Do Blynk IoT or Electronic Circuits Calc Pro have ads?

Neither Blynk IoT nor Electronic Circuits Calc Pro shows ads.

### Which is updated more often, Blynk IoT or Electronic Circuits Calc Pro?

Blynk IoT ships an update monthly, and Electronic Circuits Calc Pro every 6 weeks. Most recently, Blynk IoT was updated on September 22, 2026 and Electronic Circuits Calc Pro on September 16, 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.*