221+ iOS apps curated and reviewed
Looking for free growing degree days tracker apps? 20 of our 221+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free was $2.99 | 4.4★ (50) | No | Yes | Jul 2026 |
| 2 |  | Free | 4.6★ (6.7K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (3.8K) | No | Yes | Jul 2026 |
| 4 |  | Free | 4.7★ (26K) | No | Yes | Jul 2026 |
| 5 |  | Free | 4.1★ (340) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.7★ (8K) | No | No | Jul 2026 |
| 7 |  | Free | 4.7★ (41) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 5.0★ (3) | No | No | Jul 2026 |
Track seasonal development and blooming phases using temperature-based indicators like GTS and GDD. Ideal for farmers, gardeners, and beekeepers to understand nature's progression based on accumulated heat, not just calendar dates.
This app predicts your maximum potential height using scientific data and personal factors like genetics, sleep, and activity. It provides a personalized growth plan with exercises, nutrition analysis, and lifestyle tracking to support your development. Premium features offer advanced tools and customized plans.
Easily track daily health metrics like steps, sleep, and stress with your Apple Watch. Connect with loved ones to share support, receive care notifications, and participate in global health challenges. Achieve personal goals and build healthier habits together.
Track time towards future events or since past milestones. Set custom reminders, build positive habits with streak tracking, and visualize your progress with customizable widgets. Stay organized and focused on what matters most.
This app helps cannabis growers track their plants, learn from experts, and connect with a community. It offers tools for logging growth, setting reminders, and accessing expert guides to ensure successful cultivation from seed to harvest.
Automate and simplify plant care with this app. Monitor environmental conditions, manually control grow equipment, and track plant progress. It helps optimize growth and manage schedules for a better growing experience.
Record your height and visualize its changes over time. Set a personal height goal and monitor your progress. This app helps you track your growth journey.
This app helps users meticulously track and analyze their cannabis cultivation process. It functions as a digital journal, offering insights into plant health and growth stages, and connects users with a global community of growers for shared learning and inspiration.
This app offers a straightforward way to track your menstrual cycles. Log your period start date and duration to receive predictions for your next cycle. It features a simple calendar view and integrates with health data.
Track the sun's position, movements, and shadows with this AR-powered tool. Analyze sunlight, visualize shadow movement in real-time, and get precise solar event timings. Ideal for creators and outdoor enthusiasts.
This app helps parents and teens track height, weight, sleep, and daily habits. It provides tools to build healthy routines, stay motivated with streaks and badges, and visualize progress over time. Customizable reminders ensure consistency for families.
This integrated digital agriculture tool offers farmers a connected suite of resources to gain a deeper understanding of their fields. It helps optimize yields, maximize efficiency, and reduce risk by enabling data-driven decisions throughout the year.
This app guides users through plant cultivation from seed to harvest with step-by-step video instructions. It offers tools to track plant progress, maintain detailed grow diaries with data charts, and manage climate settings.
Visually track personal transformations over time with photo documentation. Set reminders, compare progress with side-by-side views, and create time-lapse videos. Organize multiple journeys and choose to share privately or publicly.
Track your child's growth from birth to age 20 with detailed charts and projections. Supports multiple children and various measurement units. Offers cloud backup and data export options.
This app serves as a visual diary for tracking plant growth and development. It offers an organized platform to document plant health, monitor life cycles, and potentially increase yield and potency. Users can choose to keep their journals private or share them with a community for feedback and advice.
This app works with a specialized thermometer to track subtle overnight temperature changes. It helps identify hormonal fluctuations throughout the menstrual cycle, pinpoint ovulation, and predict cycle phases. The data supports fertility awareness and cycle tracking.
This smart plant care companion helps you manage your indoor greenery. Create detailed plant profiles, set automated watering and fertilizing schedules, and identify plants with ease. All your plant data is stored locally for convenient access and management.
Visualize the sun's path and shadow effects in augmented reality. Get detailed solar data, including sunrise/sunset times and day/night lengths. Plan for optimal lighting conditions for photography, construction, and gardening.
This app calculates Growing Degree Days (GDD) using hyper-local weather data to help you precisely time lawn care applications. It also logs applications, provides smart reminders, and includes profiles for over 50 grass varieties.