---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Ag PhD Field Guide"
developer_entity: "Ag PhD"
bundle_id: "com.agphd.fieldguide"
app_store_id: "545427305"
google_play_id: "com.AgPhD.fieldguide"
category: "Reference"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS & Android"
app_last_updated: "2025-08-26"
report_date: "2026-10-27"
last_verified: "2026-10-27T00:00:00.000Z"
report_version: "3.0.7"
total_reviews: 127
overall_rating: 3.7
sentiment: "Mixed"
sentiment_score: 55
confidence: "medium"
confidence_score: 0.45
top_praise_theme: "Comprehensive identification guides for weeds and insects provide significant value for agricultural and gardening professionals"
top_complaint_theme: "Application crashes on startup prevent users from accessing the identification guide on various mobile devices"
review_sample_size: 26
total_review_count: 26
analyzed_review_count: 26
data_age_days: 6
momentum_velocity: "zombie"
intelligence_version: 2
tags: ["reference", "free", "mixed sentiment", "mobile app", "app review", "app analysis", "farmers", "agricultural", "professionals"]
canonical_url: "https://marlvel.ai/apps/ag-phd-field-guide"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# Ag PhD Field Guide Intelligence Report

## TL;DR {#tldr}

- **Category**: Reference · Free
- **Signal**: Rating 3.72 · Sentiment Mixed
- **Recent focus**: Application crashes on startup prevent users from accessing the identification guide on various mobile devices (top complaint) · Comprehensive identification guides for weeds and insects provide significant value for agricultural and gardening professionals (top praise)

> **TL;DR:** Ag PhD Field Guide is a reference app by Ag PhD, rated 3.72/5 by 127 users, with Mixed user sentiment (55/100), available on iOS & Android.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Ag PhD Field Guide shows Mixed sentiment (3.72/5 from 127 reviews) - users praise comprehensive identification guides for weeds and insects provide significant value for agricultural and gardening professionals but report issues with application crashes on startup prevent users from accessing the identification guide on various mobile devices.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 3.72/5 (127 reviews) |
| **User Mood** | Mixed |
| **Category** | Reference |
| **Developer** | Ag PhD |
| **Pricing** | Free |
| **Platforms** | iOS & Android |
| **Confidence** | Medium (0.45/1.0) |
| **Data Age** | 6d |

## Metadata & Market Performance
- **Publisher:** Ag PhD
- **Category:** Reference
- **Target Audience:** Farmers and agricultural professionals seeking field-level pest identification and agronomy resources.
- **Platforms:** iOS & Android
- **Version Reviewed:** 2.0
- **Report Date:** 2026-10-27
- **Signal Count:** 26 reviews analyzed
- **Confidence:** Medium (0.45/1.0)
- **App Store ID (iOS):** 545427305
- **Bundle ID:** com.agphd.fieldguide
- **Google Play ID:** com.AgPhD.fieldguide
- **Data Window:** Analysis based on signals collected up to 2026-10-27

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** Ag PhD Field Guide is a reference app for farmers and agricultural professionals, providing a text and photo-based database for identifying field pests and weeds on iOS and Android.
**Why users hire it:** The app removes the friction of carrying physical field guides by providing instant access to pest control recommendations and agronomy news, which reinforces the Ag PhD brand presence for its B2B partners.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] Pest Identification Database:** Visual and text-based catalog for identifying weeds and insects in agricultural fields.
- **[Standard] Control Recommendations:** Provides specific management and control advice for identified pests.
  * *User Intent:* Users seek enhanced value through premium features.
- **[Differentiator] Agronomy News Integration:** Aggregates content from FMC HatchTrak newsletter and Ag PhD University.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

Ag PhD Field Guide maintains a niche presence in the Reference category, anchored by a 3.8 rating on Android and a 2.5 rating on iOS. The lack of updates for over 427 days indicates the app is currently in a maintenance-only state, limiting its ability to compete with modern, camera-enabled identification tools.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Fully free access to all identification tools and agronomy content
- **Analysis:** The app operates as a free utility with no IAP or ad-supported tiers, functioning as a brand-building tool for the Ag PhD organization.

<!-- section:sentiment -->
## 🟡 User Sentiment (Medium Confidence: 26 of 26 reviews analyzed) {#user-sentiment}
- **Overall Rating:** 3.72/5
- **Platform Split:** iOS 2.5/5 (8 ratings) | Android 3.8/5 (119 ratings)
- **Overall Sentiment:** Mixed

### Top Praises
- **Comprehensive identification guides for weeds and insects provide significant value for agricultural and gardening professionals**
- **Visual identification features help users quickly recognize common weeds and pests in their local fields**

### Top Complaints (Impact Areas)

- **Application crashes on startup prevent users from accessing the identification guide on various mobile devices**

<!-- /section:sentiment -->
<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Brand authority within the agricultural sector supports B2B partnership visibility

**Growth Levers:**
- Camera-based scanning integration would meet current user expectations for field tools


<!-- /section:swot -->
<!-- section:whats-new -->
## What's New

- **Latest (v3.0.7, 1 years ago):** Focuses on stability and performance improvements for newer Android devices alongside general bug fixes.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- Ships only minor stability bug fixes.
- No major feature updates since 2022.

> **Cadence:** 2 total versions · 0 majors in last 6 months · 427 days since last update · 1054 days avg between updates

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

Ag PhD Field Guide is a reference app that is completely free.
With a 3.72/5 rating from 127 reviews, it shows mixed user reception.

<!-- speakable-start -->
> **Bottom Line:** Ag PhD Field Guide serves as a brand-building utility, but persistent launch crashes and a dated, name-first search interface limit its utility for field operators. Addressing these technical and usability barriers would restore the app's value as a reliable field reference tool.
<!-- speakable-end -->

**Best for:** Farmers and agricultural professionals seeking field-level pest identification and agronomy resources.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [INVEST] Rebuild launch sequence because startup crashes are the #1 reported barrier to usage → increase session frequency
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Mixed

The agricultural reference market is shifting toward camera-enabled, AI-driven identification tools that provide instant, visual feedback. Ag PhD Field Guide remains tethered to a legacy, text-heavy search model, which risks alienating users who expect modern, high-speed field scouting capabilities. Without a shift to visual-first identification, the app will likely see continued decline in active usage as users migrate to more responsive, camera-integrated alternatives.

- 🔴 The 427-day gap in major updates suggests the app is in maintenance mode, which will likely lead to further user churn as mobile OS requirements evolve.
- 🔴 Persistent launch crashes on Android and iOS prevent users from accessing the identification database, directly eroding the app's core utility for field professionals.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Overall Rating | 3.72/5 |
| Total Reviews | 127 |
| Sentiment | Mixed (55/100) |
| Confidence | Medium |
| Pricing Model | Free |
| Platforms | iOS & Android |
| Key Features | 3 analyzed |
| Outlook | Mixed |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Ag PhD Field Guide** (this app) | 3.72/5 | Mixed | Ag PhD |
| [올어바웃성경](https://marlvel.ai/apps/com-allabout-bibleapp) | 5.0/5 | N/A | Gilju Lee |
| [Hallow: Prayer & Meditation](https://marlvel.ai/apps/hallow-prayer-meditation) | 4.7/5 | n/a | Hallow, Inc. |
| [고려대 한국어 속담 사전](https://marlvel.ai/apps/app--428) | N/A/5 | N/A | DaolSoft, Co., Ltd. |
| [우리말 의학사전](https://marlvel.ai/apps/app--427) | N/A/5 | N/A | DaolSoft, Co., Ltd. |
| [공인중개사 용어사전](https://marlvel.ai/apps/app--429) | N/A/5 | N/A | DaolSoft, Co., Ltd. |

## Company Profile
- **Developer:** Ag PhD

## Data Sources & Links
- **App Store ID:** 545427305
- **Google Play ID:** com.AgPhD.fieldguide
- **Sources:** App store metadata, User reviews.

## Related Intel Reports
- [*올어바웃성경*](https://marlvel.ai/apps/com-allabout-bibleapp) (Gilju Lee) · 5.0/5 Rating
- [*Hallow: Prayer & Meditation*](https://marlvel.ai/apps/hallow-prayer-meditation) (Hallow, Inc.) · 4.7/5 Rating
- [*고려대 한국어 속담 사전*](https://marlvel.ai/apps/app--428) (DaolSoft, Co., Ltd.) · N/A Rating
- [*우리말 의학사전*](https://marlvel.ai/apps/app--427) (DaolSoft, Co., Ltd.) · N/A Rating
- [*공인중개사 용어사전*](https://marlvel.ai/apps/app--429) (DaolSoft, Co., Ltd.) · N/A Rating
- [*브리태니커 콘사이스 백과사전*](https://marlvel.ai/apps/app--425) (DaolSoft, Co., Ltd.) · N/A Rating
- [*100 Radio Hrvatska (HR) : Vijesti, glazba, Nogomet*](https://marlvel.ai/apps/100-radio-hrvatska-hr-vijesti-glazba-nogomet) (Thomas Gesland) · 1.0/5 Rating
- [*100 US Citizenship Test Questions 2017*](https://marlvel.ai/apps/100-us-citizenship-test-questions-2017) (Andrey Fetisov) · 4.7/5 Rating
- [*١٠١ پرسیار لە زانستی قورئان*](https://marlvel.ai/apps/app--952) (Abdulwahab F. Omar) · 5.0/5 Rating
- [*10ten Japanese Reader*](https://marlvel.ai/apps/10ten-japanese-reader) (Birchill, Inc.) · 4.9/5 Rating

## Frequently Asked Questions {#faq}

### Is Ag PhD Field Guide free to use?

Yes, Ag PhD Field Guide is a free utility with no in-app purchases or ad-supported tiers, designed to provide agronomy information to agricultural professionals.

### Can I use my camera to identify weeds in the field?

No, the current version of Ag PhD Field Guide does not support camera-based identification. Users must search for weeds and insects by name within the app's database.

### Why does the app crash when I open it?

Multiple users report that the app closes immediately after the initial screen. Reinstalling the application has not resolved these launch failures for many users.

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.45/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 26
- **Data Sources:** user reviews, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 6 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/ag-phd-field-guide)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.