Best Nitrate Apps

68+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

Finding the right nitrate apps can be overwhelming with so many options. We've analyzed 68+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Nitrate Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Tallow: Real Food ScannerTallow: Real Food ScannerFree4.8★ (66)YesYesAug 2026
2Deltares AqualityDeltares AqualityFreeNoNoMay 2026
3Meteobot NitroMeteobot NitroFreeNoNoMay 2026
4Aqualy - Aquarium AssistantAqualy - Aquarium AssistantFree3.5★ (2)YesYesJul 2026
5Sodium Tracker & Label ScannerSodium Tracker & Label ScannerFree5.0★ (2)NoYesAug 2026
6MRTN Rate CalculatorMRTN Rate CalculatorFree5.0★ (1)NoNoMay 2026
7FertAdvisorFertAdvisorFree5.0★ (3)NoNoMay 2026
8WiseH2OWiseH2OFree5.0★ (1)NoNoJun 2026

Top Picks for Nitrate

Tallow: Real Food Scanner#1

Tallow: Real Food Scanner by Maddox Schmidlkofer

Seed Oil Free Restaurants
Editor's Choice
💪 Health & Fitness
4.8(66 ratings)
FreeAdsIn-App Purchases
Tallow: Real Food Scanner screenshot 1
Tallow: Real Food Scanner screenshot 2
Tallow: Real Food Scanner screenshot 3
Tallow: Real Food Scanner screenshot 4
Tallow: Real Food Scanner screenshot 5

This app scans food barcodes to reveal hidden ingredients like seed oils, additives, and contaminants. It provides a transparent score based on factors beyond just calories, helping users make healthier choices.

More Nitrate apps to explore

4
Aqualy - Aquarium Assistant
Aqualy - Aquarium Assistant
Aqualy - Aquarium Assistant
Fish ID, Water Test & Tank Log
Free

This app uses AI to help you care for your aquarium. Scan water test strips, identify fish from photos, and get expert advice. Track tank parameters, log photos, and learn from curated content.

AI-powered water test strip scanningInstant fish identification from photosAI assistant for expert aquarium advice
🔧 Utilities
(2)
free with in-app purchases
5
Sodium Tracker & Label Scanner
Sodium Tracker & Label Scanner
Sodium Tracker & Label Scanner
Eat a Low salt, DASH & BP Diet
Free

This app helps you track your daily sodium intake and monitor blood pressure. It features a smart scanner to analyze food labels, identify hidden salts, and suggest healthier alternatives. Manage your heart health with clear insights into your diet.

Smart Label Scanner & ParserInstant Sodium AnalysisServing Size Adjustments
💪 Health & Fitness
(2)
freemium
6
MRTN Rate Calculator
MRTN Rate Calculator
MRTN Rate Calculator
by University of Illinois at Urbana-Champaign
Free

This utility calculates the optimal nitrogen fertilizer rate for crops based on agronomic research and current economic conditions. It provides a customized recommendation to maximize returns.

Customized nitrogen rate recommendationsCombines agronomic researchConsiders economic fluctuations
🔧 Utilities
(1)
free
7
FertAdvisor
FertAdvisor
FertAdvisor
by University of Connecticut
Free

This app helps homeowners and turfgrass professionals calculate fertilizer needs for lawns. It provides tools for spreader calibration, label interpretation, and application guidance through animations and videos.

Fertilizer amount calculationSpreader calibrationFertilizer label reading
📚 Education
(3)
free
8
WiseH2O
WiseH2O
WiseH2O
by MobileH2O, LLC
Free

Easily test water quality in real-time using chemical test strips and your smartphone. Capture photos, record observations, and log disturbances with time and location data for effective monitoring and remediation.

Real-time water quality testingChemical test strip analysisPhoto documentation of results
🔍 Reference
(1)
free
9
NDSU Nitrogen Calculator
NDSU Nitrogen Calculator
NDSU Nitrogen Calculator
by North Dakota State University
Free
📊 Productivity
(0)
10
ColorMetric
ColorMetric
ColorMetric
Aquarium Test Kit Analyzer
Free
🔧 Utilities
(0)
11
Water Savvy: Pure Water Check
Water Savvy: Pure Water Check
Water Savvy: Pure Water Check
Discover Local Purity Data
Free
$4.99 | 100% OFF

Understand your local water quality with real-time scores, interactive maps, and alerts. Discover potential contaminants in tap water and recreational areas to make informed decisions about your health and safety.

Real-time water quality scoresPFAS detection for forever chemicalsInteractive maps with environmental data layers
💪 Health & Fitness
(7)
ad-supported
12
Crop Nutrients in Irrigation Water Calculator
Crop Nutrients in Irrigation Water Calculator
Crop Nutrients in Irrigation Water Calculator
by Oklahoma State University
Free
📚 Education
(0)
13
Aquarium Water Tracker - Reef
Aquarium Water Tracker - Reef
Aquarium Water Tracker - Reef
Water Tests, Livestock & Tanks
Free
🌟 Lifestyle
(0)
14
FishTank Diary — Aquarium Log
FishTank Diary — Aquarium Log
FishTank Diary — Aquarium Log
Water tests & care reminders
Free
$0.99 | 100% OFF
📊 Productivity
(0)
15
AquaTrack - Aquarium Tracker
AquaTrack - Aquarium Tracker
AquaTrack - Aquarium Tracker
by Aurelian Syndicate L.L.C.
Free

Log water parameters, manage maintenance schedules, and visualize trends for your fish tanks. Get reminders for tasks and gain insights into your aquarium's health. Designed for simplicity and focus.

Log water parameters (pH, ammonia, etc.)Schedule and manage maintenance tasksVisualize parameter trends with charts
🔧 Utilities
(1)
freemium
16
AquaXOne: Reef & Aquarium Log
AquaXOne: Reef & Aquarium Log
AquaXOne: Reef & Aquarium Log
Track Parameters & Dosing
Free

This app helps aquarium hobbyists track water parameters, log dosing, and monitor livestock for a stable and healthy tank. It offers features for managing equipment, maintenance schedules, and documenting tank growth with a photo journal.

Water parameter trackingDosing and maintenance loggingLivestock inventory
🔧 Utilities
(1)
free with in-app purchases
17
Greentest
Greentest
Greentest
by Shenzhen Greentest Science and Technology Co.Ltd
Free

This app connects to a smart device to analyze nitrate levels in food and water hardness. It also detects background radioactivity. Ensure Bluetooth is enabled on your mobile device for seamless connection and testing.

Nitrate level analysisWater hardness testing (TDS)Background radioactivity detection
💪 Health & Fitness
(2)
free
18
Reefi: Aquarium Tracker
Reefi: Aquarium Tracker
Reefi: Aquarium Tracker
Smart aquarium care & tracking
Free
🌟 Lifestyle
(0)
19
Aquarium Tracker - Fish Tank
Aquarium Tracker - Fish Tank
Aquarium Tracker - Fish Tank
Water Tests & Smart Alerts
Free
🔧 Utilities
(0)
20
Koi Cal Pond Care + Health AI
Koi Cal Pond Care + Health AI
Koi Cal Pond Care + Health AI
Care for fish +get clear water
Free

This app helps you diagnose and solve common koi pond issues like cloudy water or sick fish. By analyzing pond conditions and fish details, it provides tailored advice for maintaining a healthy aquatic environment.

Fish health diagnosticsWater quality analysisPond condition assessment
🔧 Utilities
(3)
free with in-app purchases

FAQ about Nitrate

What are the best nitrate apps for iPhone?
Tallow: Real Food Scanner tops our nitrate apps ranking as of June 2026, with a 4.8-star average from 66 App Store ratings, and it's free to download.
Yes — 20 of the top nitrate apps we rank are free to download, including Tallow: Real Food Scanner and Deltares Aquality.
Tallow: Real Food Scanner shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 68+ nitrate apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Tallow is a food scanner that analyzes the ingredients and potential contaminants in packaged foods. It provides a transparent score from 0-100 based on factors like seed oils, additives, and ultra-processing.
Every product starts at 100 points and loses points for harmful ingredients, ultra-processing (NOVA 4), contaminants above regulatory limits, and microplastics/PFAS. The 'Why this score' sheet details each deduction.