GrassMaster vs Lawn Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GrassMaster
This app provides expert lawn care guidance, including fertilization, watering, and disease treatment. It features calculators for sod and mulch estimates, and offers detailed schedules for various grass types.
- Professional lawn maintenance methods
- Sod and mulching material calculators
- Weed and disease identification with reference images
- Fertilizing schedules for common grass types
- Exportable fertilization schedules for calendars
- Covers 8 common turf grass types
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GrassMaster contains proven maintenance methods used by the Pros to have your lawn looking beautiful! New version has a Sod Estimate Calculator and a Mulching Materials Estimate Calculator. Need to sod or mulch an area of your landscape? GrassMaster now makes it super-easy to estimate the materials and cost for sod or mulch! How and when to fertilize, water, treat weeds and common lawn diseases. GrassMaster includes reference images so you can quickly identify a particular disease so you know exactly what herbicides to buy. No more guess-work! The turf grass specifications in GrassMaster are not only our years of experience, but also right in line with turf maintenance practices recommended by Extension Offices and Universities all across the U.S. as well as many Landscaping Professionals. GrassMaster also includes an easy to follow Fertilizing Schedule for each Lawn type (listed below). The Schedule file can be Emailed right from this App and then imported into your favorite Calendar application (iCal, Outlook, etc.). If you're syncing your Calendar to iTunes, you can have the Schedule imported into your iPhone Calendar App. GrassMaster covers the most common Lawn/Turf grasses, including: Bahiagrass Bermuda Grass Bluegrass Centipede Grass Fescue Grass Ryegrass St. Augustine Grass Zoysia Grass We hope you enjoy using GrassMaster! For full details and more screenshots, questions or comments, please visit our Support site at: grassmaster.i2dllc.com
Lawn Tracker
Easily track your lawn's health with this app. Monitor grass growth, mowing, watering, and treatments. Plan nutrition, measure your yard, and view your progress with a calendar and journal.
- Grass growth tracking
- Mowing and watering schedules
- Treatment planning
- Lawn measuring tool
- Calendar and journal views
- Reminders and weather data
- Material and equipment calculators
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Lawn care made easy. It will track your grass growth, mowing schedule, watering schedule, and treatments to ensure your lawn is healthy, thick and green. Start logging and watch your lawn takeoff. Some of the features are: Treatment schedule to help you plan and apply needed nutrition to your lawn, Lawn measuring tool to help you get the size of your yard, Calendar view to see when you mowed last, watered last or applied a treatment last, Journal view to keep track of your progress, mowing stats, watering stats, treatment plans, calculators, set reminders, & weather data to help you know when to water or hold off for rain. There are also various calculators to help with purchasing needed material and equipment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Lawn Tracker at 79% against GrassMaster's 33%. Lawn Tracker also leads on price (Free vs $2.99) and update cadence (every 2 weeks vs every 7 months). GrassMaster's advantage is in-app purchases (none vs 6) and iOS requirement (11.0 vs 15.0). On ads and device support 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
Lawn Tracker is free to download; GrassMaster costs $2.99 up front. Lawn Tracker sells 6 in-app purchases, starting at $5.49 per month. GrassMaster asks for nothing beyond the download.
GrassMaster ships an update every 7 months, Lawn Tracker every 2 weeks. The most recent releases landed on September 17, 2026 and July 23, 2026 respectively.
| Parameter | GrassMaster | Lawn Tracker |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.7 (31 ratings) — better |
| Positive reviews | 33.3% of reviews | 78.6% of reviews — better |
| Number of ratings | — | 31 — better |
| Update frequency | Every 7 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | John Lullie | Matthew Bangs |
Customer experience
GrassMaster
Lawn Tracker
In-app purchases
GrassMaster
No in-app purchases
Lawn Tracker
- Multiple Lawns1 Month trial$5.491 Month
- Developer Support Level 1$2.99
- Donate Now$3.99
- Developer Support Level 2$5.99
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- Developer Support Level 3$9.99
- Ad Free Use$9.99









