Green Thumbometer vs Sun Mapper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Green Thumbometer
This app helps gardeners plan and track their tasks with customizable monthly checklists, a gardening journal, and a shopping list. It provides seasonal task guidance based on hemisphere and includes a map to find local gardening stores.
- Customizable monthly gardening checklists
- Gardening journal with notes and photos
- In-app shopping list
- Gardening store locator map
- Seasonal task customization by hemisphere
- Task sharing and integration with other apps
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Green Thumbometer The Gardening App Not sure what to do when to keep your yard and garden beautiful? Enter Green Thumbometer, the combination gardening to-do list, calendar, journal and information source that helps you know what to do when to achieve green thumb status. With a few swipes of your thumb, Green Thumbometer gives you simple monthly gardening checklists that you can customize to meet your own garden’s needs. This app is for gardeners who: Want a beautiful yard and fruitful garden but aren’t sure what to do and when to do it to make that happen. Green Thumbometer takes out a ton of the guesswork. Want to combine a gardening calendar and to-do list with an on-going record of their gardening complete with notes, photos and handy links to YouTube videos and other gardening information. Don’t want to waste time figuring out what they need to do on Saturday morning to maintain their yard and garden. They just want a handy list they can plow through before going on with the weekend. Want to keep all of the information about their garden handy in their smartphones so they can consult it while they’re out working in the yard. Green Thumbometer has these features: MONTHLY LISTS OF EASY GARDENING TASKS Each month has a standard checklist of easy seasonal gardening tasks as well as tasks needed to grow specific vegetables and fruits. You can customize the tasks by adding, deleting and editing them. Add handy notes, links and photos for your future reference. For tasks specific to particular plants, you can add one of our custom icons so it’s simple to spot that task in your checklists. Your checklists are a gardening journal that you can continue to use and customize from year to year. They are a rich customizable source of gardening information about growing the plants you love. SHARE TASKS WITH OTHERS, SET REMINDERS, ADD TO OTHER PRODUCTIVITY APPS You can share your tasks with other people via email, text messages and social media. You can add tasks to your Reminders and to other productivity apps. SHOPPING LIST You can add plants, gardening tools and supplies that you need to buy to an in-app shopping list. FIND A GARDENING STORE NEAR YOU ON A MAP Green Thumbometer’s map is customized to show the locations of gardening stores near you so you can pick up the items you need. CUSTOMIZED FOR SEASONAL TASKS Most gardening tasks are seasonal. Green Thumbometer allows you to designate in the settings whether you live in the northern or southern hemisphere so that seasonal tasks will appear during the appropriate months for your location. STATS Green Thumbometer’s Stats section helps you track over a year’s time how you are doing in maintaining your yard and garden. It’s your own Green Thumbometer. Green Thumbometer was invented by busy amateur gardeners who get it that you want to keep your yard and garden in good shape, not spend your time frustrated because you don’t want to do next. We’ve tried to get gardening down to the simplest level possible so you can enjoy it and your yard. We’re committed to providing you with a reliable app that you can use on an on-going basis and can depend on to be updated as needed to meet your needs.
Sun Mapper
Easily track sunlight in your garden by creating detailed sun maps. Upload photos or take new ones at intervals to visualize light patterns throughout the day. Trace sunlight areas to understand daily exposure for optimal gardening.
- Add and manage multiple gardens
- Create sun maps with timed photo intervals
- Upload photos or use in-app camera
- View sun maps as a slideshow
- Trace sunlight areas for detailed analysis
- Compare multiple sun maps side-by-side
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Create Sun Maps for your garden so that you can easily track how much sunlight your garden is getting throughout the day. The most reliable way to create a sun map is to take photos yourself, so that you can see exactly when and where the light is hitting your garden. To help you with this, Sun Mapper has the following features: ADD GARDENS - Identify the garden(s) that you will be creating sun maps for* CREATE SUN MAPS - Set up your sun map so that photos will be taken/uploaded at specific intervals throughout the day - Each sun map is identified by the garden it is for, the date it is recorded and the camera angle - Create multiple sun maps for the same garden* - (You may want to create multiple sun maps for different seasons or for different camera angles) ADD PHOTOS - Upload from your photo library or take a picture with the in-app camera - Add photos at each interval throughout the day - Get notified when it is time to take/upload another photo. SLIDESHOW - Tap forward or backward through the sun map images and see how the light changes throughout the day - Auto-play to have slideshow run automatically TRACE SUNLIGHT (In-App Purchase) - For each image in your sun map, trace a shape over the areas hit by sunlight - Align images so that when overlaid, the sunlight tracings are in the right place - View the composite sunlight tracing, showing how many total hours each area of your garden gets hit with sunlight PREMIUM FEATURES... COMPARE SUN MAPS - Observe photos from selected sun maps side-by-side to see how light hits differently at each time throughout the day - Compare from 2-4 sun maps at a time SLIDESHOW+ - Align images so that objects stay in the same place, and the only thing that changes is where the sunlight hits - Turn on 'Repeat' so that the slideshow automatically starts over and continues playing - Turn on 'Fade' so that each image fades into the next (works great with aligned images!) *Limit is 2 gardens and 2 sun maps per garden, or unlimited with an In-App Purchase. Want me to develop your app? Email me at mcApps@proton.me
Screenshots
Verdict
The clearest difference is price: Sun Mapper at Free against Green Thumbometer's $2.99. Sun Mapper also leads on rating (5.0 vs 2.0) and update cadence (every 3 weeks vs every 3 months). Green Thumbometer's advantage is in-app purchases (none vs 6) and iOS requirement (15.6 vs 17.0). On review sentiment, ratings volume, 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
Sun Mapper is free to download; Green Thumbometer costs $2.99 up front. Sun Mapper sells 6 one-off in-app purchases. Green Thumbometer asks for nothing beyond the download.
Sun Mapper holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Green Thumbometer ships an update every 3 months, Sun Mapper every 3 weeks. The most recent releases landed on September 27, 2026 and June 4, 2026 respectively.
| Parameter | Green Thumbometer | Sun Mapper |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Forrest Anderson | Michael Ceryak |
Customer experience
Green Thumbometer
Sun Mapper
In-app purchases
Green Thumbometer
No in-app purchases
Sun Mapper
- Free Rein$0.99
- Premium$0.99
- 1 Sunlight Tracing$0.99
Show 3 moreShow fewer
- 3 Sunlight Tracings$1.99
- 6 Sunlight Tracings$2.99
- 10 Sunlight Tracings$3.99
Questions
Is Green Thumbometer free?
Is Sun Mapper free?
Which has better reviews, Green Thumbometer or Sun Mapper?
Do Green Thumbometer or Sun Mapper have ads?
Which is updated more often, Green Thumbometer or Sun Mapper?
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