# iBal Rotary vs NRSC

The clearest difference is price: NRSC at Free against iBal Rotary's $17.99. NRSC also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (14.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

NRSC is free to download; iBal Rotary costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iBal Rotary ships an update every 2 months, NRSC every 3 weeks. The most recent releases landed on October 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | iBal Rotary | NRSC |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | **[4.5 (24 ratings)](https://appshunter.io/ios/app/ibal-rotary/id567642367/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 83.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 29 MB | 123 MB |
| Requires iOS | 26.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AirSpayce](https://appshunter.io/developer/564666685) | [EMT Solutions](https://appshunter.io/developer/1526051302) |

## What reviewers say

### iBal Rotary

[App page](https://appshunter.io/ios/app/ibal-rotary/id567642367)

This app helps helicopter pilots quickly calculate weight and balance for their aircraft. It supports numerous helicopter models and allows users to add custom aircraft configurations. The app provides graphical displays and can email mission manifests, aiding in compliance with aviation regulations.

**Highlights:** Supports numerous helicopter types, Add custom aircraft configurations, Graphical CG displays, Email mission manifests, Detects weight and CG problems, Predefined load lists

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and accurate calculations
- 👍 User-friendly and simple interface
- 🛠️ Excellent customer support
- ✅ Reliable and functional
- 💡 Versatile and complete

**What reviewers complain about**

- 💰 Repurchase required for new versions
- 🔊 Annoying sounds
- 👎 Poor user interface
- 📉 Outdated data
- 🤷‍♂️ Stations cannot be deleted

**Reported bugs**

- App crashes on iPhone 4 since latest update
- Choose photo function does not work on iPad Mini Retina
- Math is sometimes wrong
- Rounding of aircraft values is annoying

**Requested features**

- Add B3E aircraft
- Ability to modify aircraft data
- Add BK-117 D2/D3 (H145) to aircraft list
- Add Bell 505 to aircraft library
- Input fuel burn to calculate flight duration estimate


### NRSC

[App page](https://appshunter.io/ios/app/nrsc/id6792061285)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iBal Rotary free?

iBal Rotary costs $17.99, with no in-app purchases.

### Is NRSC free?

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

### Do iBal Rotary or NRSC have ads?

Neither iBal Rotary nor NRSC shows ads.

### Which is updated more often, iBal Rotary or NRSC?

iBal Rotary ships an update every 2 months, and NRSC every 3 weeks. Most recently, iBal Rotary was updated on October 20, 2026 and NRSC on September 22, 2026.

---

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