# Morrell NMS vs SolarCalc PV Pro+

The clearest difference is in-app purchases: Morrell NMS at none against SolarCalc PV Pro+'s 3. Morrell NMS also leads on iOS requirement (11.0 vs 15.0). SolarCalc PV Pro+'s advantage is update cadence (every 5 months vs every 23 months). On price, ads and device support there is nothing between them.

Both are free to download. SolarCalc PV Pro+ sells 3 in-app purchases, starting at $1.99 per month. Morrell NMS asks for nothing beyond the download.

Morrell NMS ships an update every 23 months, SolarCalc PV Pro+ every 5 months. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Morrell NMS | SolarCalc PV Pro+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 5 months** |
| Size | 32 MB | 24 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aswar Aldirah Electronics](https://appshunter.io/developer/1471756196) | [Muhammed Celik](https://appshunter.io/developer/1885092121) |

## What reviewers say

### Morrell NMS

[App page](https://appshunter.io/ios/app/morrell-nms/id1592261040)

**Features:** macOS Compatibility

**In-app purchases:** none


### SolarCalc PV Pro+

[App page](https://appshunter.io/ios/app/solarcalc-pv-pro-plus/id6763420858)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $9.99 | per year |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Morrell NMS free?

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

### Is SolarCalc PV Pro+ free?

SolarCalc PV Pro+ is free to download, with in-app purchases available.

### Do Morrell NMS or SolarCalc PV Pro+ have ads?

Neither Morrell NMS nor SolarCalc PV Pro+ shows ads.

### Which is updated more often, Morrell NMS or SolarCalc PV Pro+?

Morrell NMS ships an update every 23 months, and SolarCalc PV Pro+ every 5 months. Most recently, Morrell NMS was updated on October 12, 2026 and SolarCalc PV Pro+ on October 20, 2026.

---

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