# iResistors vs NCD Academy

iResistors and NCD Academy both sit at 5.0 stars, but that hides the real split: 90% of NCD Academy's written reviews are positive against 27% of iResistors's. NCD Academy also leads on price (Free vs $0.99) and update cadence (every 2 months vs every 10 months). On rating, ads, in-app purchases and iOS requirement there is nothing between them.

NCD Academy is free to download; iResistors costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for iResistors against 4.9 for NCD Academy. That said, the two scores are not equally well evidenced: NCD Academy has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 27% of iResistors's written reviews are positive against 90% of NCD Academy's.

iResistors ships an update every 10 months, NCD Academy every 2 months. The most recent releases landed on September 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iResistors | NCD Academy |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iresistors/id289082778/reviews)** | [4.9 (21 ratings)](https://appshunter.io/ios/app/ncd-academy/id1501602635/reviews) |
| Number of ratings | 1 | **21** |
| Positive reviews | 26.7% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 28 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Gian Enrico Conti](https://appshunter.io/developer/289082781) | [American College of Cardiology](https://appshunter.io/developer/502174543) |

## What reviewers say

### iResistors

[App page](https://appshunter.io/ios/app/iresistors/id289082778)

This app helps users learn basic electronics by simulating resistor color band identification. Swipe through color bands to see the Ohm value change in real-time. It's a useful tool for students studying electronics.

**Highlights:** Simulates resistor color bands, Displays Ohm values, Interactive color band swiping, Educational tool for electronics, Real-time value updates

**Features:** macOS Compatibility

**In-app purchases:** none


### NCD Academy

[App page](https://appshunter.io/ios/app/ncd-academy/id1501602635)

This app provides essential education for frontline health workers on managing non-communicable diseases, starting with cardiovascular disease. It aims to empower professionals to better address the global burden of these conditions.

**Highlights:** NCD management education, Cardiovascular disease focus, Empowering frontline health workers, Risk factor management, Global health burden reduction

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

**In-app purchases:** none


## Frequently asked questions

### Is iResistors free?

iResistors costs $0.99, with no in-app purchases.

### Is NCD Academy free?

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

### Which has better reviews, iResistors or NCD Academy?

iResistors is rated higher. iResistors averages 5.0 out of 5 from 1 ratings, while NCD Academy averages 4.9 from 21 ratings.

### Do iResistors or NCD Academy have ads?

Neither iResistors nor NCD Academy shows ads.

### Which is updated more often, iResistors or NCD Academy?

iResistors ships an update every 10 months, and NCD Academy every 2 months. Most recently, iResistors was updated on September 30, 2026 and NCD Academy on October 24, 2026.

---

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