VandWater vs RNA Sampling
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VandWater
This app offers a secure and straightforward solution for tracking, managing, and reporting water activity. It combines science and technology to help users understand water management challenges, stay compliant with regulations, and maximize water efficiency. The platform provides tools for monitoring well activity and water rights history.
- Water activity tracking
- Compliance reporting
- Water efficiency maximization
- Well activity logs
- Water rights history
- Sustainable water management tools
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Simple and secure software that combines science and technology for tracking, managing, and reporting water activity through a proven and simple software program and mobile app, all in one place. The VandWater app was created to better understand the array of challenges in tracking and monitoring water management to stay within compliance regulations while also maximizing water efficiency. This program provides a sophisticated full use software platform that is highly flexible and scalable to ease monitoring and reporting, thereby assisting with compliance, as well as saving operators time, money, and frustration with critical current well activity logs producing full water right history – all in the palm of your hand. This program was created by farmers for farmers. The VandWater app will provide all the tools required for sustainable water management.
RNA Sampling
This app streamlines agricultural sample data collection for clients. It features QR code scanning, real-time data processing, and smart management of field samples and test results. Organize, edit, and track your sample history with ease, even offline.
- QR code scanning for sample tags
- Real-time data processing and validation
- Organize field samples and test results
- Edit and update sample records
- Add field observations and notes
- Track sample history with timestamps
- Offline functionality
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Title: QR Scanner & Data Manager - Crop Diagnostix Client Portal Description: Designed exclusively for Crop Diagnostix clients, this QR code scanning application streamlines your sample data collection workflow with features tailored to agricultural diagnostics and field testing. Key Features: Quick Scanning: Built-in QR code scanner for Crop Diagnostix sample tags and documentation Real-time Processing: Immediately parse and validate diagnostic sample data Smart Data Management: Organize field samples and test results systematically Edit and update sample records on the fly Add field observations and notes to entries Track complete sample history with timestamps Interface & Navigation: Clean, user-friendly design with three main sections: Scanner Tab: Access the QR code scanner Data Entry Tab: View and modify sample information History Tab: Browse complete sampling history Data Handling: Secure local storage of all sample data Detailed record keeping with: Unique sample IDs Collection timestamps Sample categories Field observations Easy data editing and updating capabilities Use Cases: Field sample tracking Diagnostic result management Crop monitoring Testing documentation Agricultural data collection Additional Features: Offline functionality for field use Quick data export options Search and filter capabilities Data backup support
Screenshots
Verdict
The clearest difference is rating: RNA Sampling at 5.0 against VandWater's 4.0. RNA Sampling also leads on update cadence (weekly vs every 5 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RNA Sampling holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 5 and 3 respectively.
VandWater ships an update every 5 weeks, RNA Sampling weekly. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.
| Parameter | VandWater | RNA Sampling |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) | 5.0 (3 ratings) — better |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.6 — better |
| Further details — not scored | ||
| Size | 80 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | VandWater, Inc. | Crop Diagnostix Inc. |
Customer experience
VandWater
RNA Sampling
In-app purchases
VandWater
No in-app purchases
RNA Sampling
No in-app purchases









