EarthOptics Sampling vs Field Promax Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EarthOptics Sampling
This application assists field professionals in executing soil sampling protocols with precision. It leverages advanced soil data and services, including in-field sensing and laboratory testing, to provide comprehensive soil management data.
- Soil attribute measurement and quantification
- In-field proximal sensing
- Laboratory testing integration
- Field sampling protocol execution
- Soil management data products
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EarthOptics is a soil data and services platform specializing in measuring and quantifying soil attributes. We provide an integrated suite of services, including soil sampling, in-field proximal sensing, and laboratory testing, which underpin our core soil management data products. Our soil sampling app enables field professionals to successfully execute field sampling protocols according to a variety of technical specifications.
Field Promax Plus
Manage field service operations with this app. Create and update work orders, generate estimates, and capture customer signatures. Streamline invoicing and payment collection, while tracking technician locations.
- Create and update work orders
- Generate and update estimates
- Upload before/after images
- Collect customer signatures
- Email invoices and collect payments
- Track technician locations
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Field Promax Plus is an application that is used to manage work orders and service staff in the field. App Features: + Create and update work orders + Create and update estimates + Upload before and after images + Collect customer signature on work completion + Email invoices and collect payments + Multiple ways to view your work orders + Track location of Technicians when using the app Requires an existing Field Promax account.
Screenshots
Verdict
The clearest difference is rating: EarthOptics Sampling at 4.6 against Field Promax Plus's 3.0. EarthOptics Sampling also leads on ratings volume (8 vs 2). Field Promax Plus's advantage is iOS requirement (15.5 vs 18.0). On price, update cadence, 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.
EarthOptics Sampling holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively.
EarthOptics Sampling ships an update every 8 days, Field Promax Plus every 6 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | EarthOptics Sampling | Field Promax Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (8 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | 2 |
| Update frequency | Every 8 days | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 92 MB | 92 MB |
| Age rating | 4+ | 17+ |
| Developer | Pattern Ag, Inc. | Field Promax LLC |
Customer experience
EarthOptics Sampling
Field Promax Plus
In-app purchases
EarthOptics Sampling
No in-app purchases
Field Promax Plus
No in-app purchases
Questions
Is EarthOptics Sampling free?
Is Field Promax Plus free?
Which has better reviews, EarthOptics Sampling or Field Promax Plus?
Do EarthOptics Sampling or Field Promax Plus have ads?
Which is updated more often, EarthOptics Sampling or Field Promax Plus?
Other comparisons
