# 3 Waters vs Invaders Finder

The clearest difference is in-app purchases: 3 Waters at none against Invaders Finder's 3. 3 Waters also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). Invaders Finder's advantage is update cadence (every 10 days vs every 3 weeks) and ratings volume (6 vs 1). On price, rating and device support there is nothing between them.

Both are free to download. Invaders Finder sells 3 in-app purchases, starting at $3.99 per month. 3 Waters asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 3 Waters against 5.0 for Invaders Finder. That said, the two scores are not equally well evidenced: Invaders Finder has 6 ratings behind it against 1, so its average is the more settled of the two.

3 Waters ships an update every 3 weeks, Invaders Finder every 10 days. The most recent releases landed on October 30, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 3 Waters | Invaders Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/3-waters/id6751230844/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/invaders-finder/id6761786394/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 93.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 445 MB | 37 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cheyenne Mcdonald](https://appshunter.io/developer/1834121799) | [Josselin Tual](https://appshunter.io/developer/1891472300) |

## What reviewers say

### 3 Waters

[App page](https://appshunter.io/ios/app/3-waters/id6751230844)

This app provides updates and information about water treatment services, specializing in solutions for Florida's unique water challenges. It offers expertise in well water issues, whole-house systems, and drinking water purification.

**Highlights:** Water treatment service updates, Solutions for Florida's water challenges, Well water issue expertise, Whole-house softening and filtration, Drinking water systems, Eco-friendly and budget-conscious options

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Invaders Finder

[App page](https://appshunter.io/ios/app/invaders-finder/id6761786394)

Discover and track unique urban art installations worldwide on an interactive map. Plan walking routes to visit them, log your discoveries, and stay updated on their status. Sync your progress across devices and receive notifications for new finds.

**Highlights:** Interactive map with invader status, Customizable walking route planner, Progress tracking and city browsing, Cloud sync for progress, Notifications for new invaders, Multi-language support

**Features:** iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $3.99 | per month |
| Pro (Yearly) | $24.99 | per year |
| No ads | $4.99 | one-time |


## Frequently asked questions

### Is 3 Waters free?

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

### Is Invaders Finder free?

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

### Which has better reviews, 3 Waters or Invaders Finder?

3 Waters and Invaders Finder are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do 3 Waters or Invaders Finder have ads?

Invaders Finder shows ads; 3 Waters does not.

### Which is updated more often, 3 Waters or Invaders Finder?

3 Waters ships an update every 3 weeks, and Invaders Finder every 10 days. Most recently, 3 Waters was updated on October 30, 2026 and Invaders Finder on November 7, 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.*