# Know My Water vs ScanNGrab

The clearest difference is in-app purchases: ScanNGrab at none against Know My Water's 7. Know My Water's advantage is update cadence (every 3 months vs every 19 months) and iOS requirement (13.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Know My Water sells 7 in-app purchases, starting at $0.99 per month. ScanNGrab asks for nothing beyond the download.

Know My Water ships an update every 3 months, ScanNGrab every 19 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Know My Water | ScanNGrab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/know-my-water/id1582657664/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 1 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Know My Well, LLC](https://appshunter.io/developer/1582657666) | [Randy Melder](https://appshunter.io/developer/406438530) |

## What reviewers say

### Know My Water

[App page](https://appshunter.io/ios/app/know-my-water/id1582657664)

Manage your well water system with this app. Store detailed information about your well, pump, and filters, and upload documents. Set maintenance reminders, use a diagnostic tool for issues, and connect with local professionals for repairs.

**Highlights:** Well system profile creation, Document and photo uploads, Maintenance reminders, Self-diagnosing tool, Access to well resources, Connect with local professionals

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2 Wells | $0.99 | per month |
| 3-5 Wells | $4.99 | per month |
| 6-10 Wells | $9.99 | per month |
| 11-20 Wells | $19.99 | per month |
| 21-50 Wells | $49.99 | per month |
| 51-100 Wells | $99.99 | per month |
| 101-150 Wells | $149.99 | per month |


### ScanNGrab

[App page](https://appshunter.io/ios/app/scanngrab/id1669990652)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Know My Water free?

Know My Water is free to download, with in-app purchases available.

### Is ScanNGrab free?

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

### Do Know My Water or ScanNGrab have ads?

Neither Know My Water nor ScanNGrab shows ads.

### Which is updated more often, Know My Water or ScanNGrab?

Know My Water ships an update every 3 months, and ScanNGrab every 19 months. Most recently, Know My Water was updated on November 3, 2026 and ScanNGrab on November 3, 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.*