# STPC APP vs PlugWatt

The clearest difference is in-app purchases: STPC APP at none against PlugWatt's 3. STPC APP also leads on iOS requirement (15.6 vs 17.6). PlugWatt's advantage is ads (none vs shown) and update cadence (weekly vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. PlugWatt sells 3 in-app purchases, starting at $6.99 per month. STPC APP asks for nothing beyond the download.

STPC APP ships an update every 6 weeks, PlugWatt weekly. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | STPC APP | PlugWatt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stpc-app/id1565529283/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 102 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SATET LLC](https://appshunter.io/developer/1565529285) | [Chris Thrasher](https://appshunter.io/developer/1790762521) |

## What reviewers say

### STPC APP

[App page](https://appshunter.io/ios/app/stpc-app/id1565529283)

This utility app helps identify process problems and assess capability to meet customer requirements using control charts. It features task management, recurring jobs, and flexible data handling with programmable input fields.

**Highlights:** Process problem identification, Capability assessment, Control chart analysis, Task management, Periodically repeating jobs, Programmable data fields

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

**In-app purchases:** none


### PlugWatt

[App page](https://appshunter.io/ios/app/plugwatt-ev-charging-toolkit/id6788584092)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PlugWatt Pro Monthly | $6.99 | per month |
| PlugWatt Pro Annual | $49.99 | per year |
| PlugWatt Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is STPC APP free?

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

### Is PlugWatt free?

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

### Do STPC APP or PlugWatt have ads?

STPC APP shows ads; PlugWatt does not.

### Which is updated more often, STPC APP or PlugWatt?

STPC APP ships an update every 6 weeks, and PlugWatt weekly. Most recently, STPC APP was updated on October 3, 2026 and PlugWatt on October 13, 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.*