# Wastewater Operator Prep vs Arc Insight

The clearest difference is in-app purchases: Arc Insight at none against Wastewater Operator Prep's 3. Arc Insight also leads on update cadence (every 4 days vs monthly) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Wastewater Operator Prep sells 3 in-app purchases, starting at $5.99 per 7 days. Arc Insight asks for nothing beyond the download.

Wastewater Operator Prep ships an update monthly, Arc Insight every 4 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Wastewater Operator Prep | Arc Insight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/wastewater-operator-prep-exam/id6789188108/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 191 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hermes Inteligencia Digital Ltda](https://appshunter.io/developer/1896694873) | [JONAH LEE WHITE](https://appshunter.io/developer/6789503723) |

## What reviewers say

### Wastewater Operator Prep

[App page](https://appshunter.io/ios/app/wastewater-operator-prep-exam/id6789188108)

Prepare for your wastewater operator certification exam with extensive practice questions and detailed explanations. This app covers all treatment processes and offers personalized study plans, timed modes, and progress tracking to boost your confidence and understanding.

**Highlights:** 1,027 practice questions, Detailed explanations for each answer, Full treatment process coverage, Personalized daily study plans, Timed practice modes, Progress tracking and pass probability

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wastewater Prep Weekly | $5.99 | per 7 days |
| Wastewater Prep Monthly | $14.99 | per month |
| Quarterly | $29.99 | per 3 months |


### Arc Insight

[App page](https://appshunter.io/ios/app/arc-insight/id6789503721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wastewater Operator Prep free?

Wastewater Operator Prep is free to download, with in-app purchases available.

### Is Arc Insight free?

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

### Do Wastewater Operator Prep or Arc Insight have ads?

Neither Wastewater Operator Prep nor Arc Insight shows ads.

### Which is updated more often, Wastewater Operator Prep or Arc Insight?

Wastewater Operator Prep ships an update monthly, and Arc Insight every 4 days. Most recently, Wastewater Operator Prep was updated on October 29, 2026 and Arc Insight on October 24, 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.*