# NPC Pro vs Stegmeier

The clearest difference is update cadence: Stegmeier at every 2 months against NPC Pro's every 24 months. On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NPC Pro ships an update every 24 months, Stegmeier every 2 months. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | NPC Pro | Stegmeier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/stegmeier/id1464555645/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 84 MB | 31 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [National Plasters Council, Inc](https://appshunter.io/developer/1273077383) | [Stegmeier](https://appshunter.io/developer/1464555644) |

## What reviewers say

### NPC Pro

[App page](https://appshunter.io/ios/app/npc-pro/id1273077384)

This app helps pool professionals manage water chemistry and follow startup procedures for plaster finishes. It offers an LSI calculator, water chemistry recommendations, and step-by-step guides for maintaining pool surfaces. Connect with experts and access resources to ensure balanced water and durable finishes.

**Highlights:** LSI Calculator for water balance, Water chemistry recommendations, Plaster startup procedures guide, Easy data input for instant results, Professional-grade accuracy, Ask the Expert feature, Access to podcasts and technical resources

**Features:** macOS Compatibility

**In-app purchases:** none


### Stegmeier

[App page](https://appshunter.io/ios/app/stegmeier/id1464555645)

This app showcases a range of innovative concrete edge forming systems and related products for decorative concrete construction. It details various profiles for pools, fountains, and more, alongside surface drains and expansion joints.

**Highlights:** Decorative concrete edge forming systems, Cast-in-place systems, Surface drains and renovation systems, Expansion joints and renovation systems, Decorative masonry coatings, Product distribution information

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

**In-app purchases:** none


## Frequently asked questions

### Is NPC Pro free?

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

### Is Stegmeier free?

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

### Do NPC Pro or Stegmeier have ads?

Neither NPC Pro nor Stegmeier shows ads.

### Which is updated more often, NPC Pro or Stegmeier?

NPC Pro ships an update every 24 months, and Stegmeier every 2 months. Most recently, NPC Pro was updated on September 23, 2026 and Stegmeier on September 26, 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.*