Birdathon vs Microscope Resolution
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Birdathon
This app helps birdwatchers create and organize detailed checklists of their observations. It automatically records time and location, allowing for easy editing and customization. Users can visualize their sightings on maps, add field notes, and export data for sharing or further analysis.
- Observation-centric checklists
- Automatic time and location recording
- Customizable maps with boundary overlays
- Field notes for additional observations
- Multiple checklist sorting options
- Data export to CSV and other formats
- Create checklist templates
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Birdathon is an observation-centric tool for creating birding checklists. It helps you organize your checklists and share them with others. Use Birdathon in the field to quickly record whether and where a bird is seen or heard and the number observed. The time and location of each observation is automatically recorded. You can adjust the location, time entries and the count of birds observed at any time to ensure your records are accurate. You can add breeding codes to your observations. Checklist maps display the locations of your observations. You can overlay county boundaries for every US state. You can add a range circle such as a 5MR (5-mile Radius) to your maps. You can import and overlay custom kml/kmz files onto your maps. An Overview feature lets you see your combined observations for any time period, and displays a map showing any boundaries you have selected, so you can utilize the map feature even when you are not actively checklisting. You can export Overview data into a csv text file or create a new checklist template from the Overview. Your checklists can be viewed in taxonomic order, alphabetically, by rarity or as a timeline of species. You can enrich your checklist with field notes and add observations such as mammals, butterflies, wildflowers, etc., to make it a more complete record of your experience. You can organize your checklists into categories such as Day List, Year List, County List, Life List, etc., and assign color themes to your lists. Bird species may be added and deleted from your lists at any time. You can create new checklist templates from your previous lists or import templates created by others. You can change which template is being used. You can import text files into Birdathon, making them into templates or new checklists. Different export options for your checklists allow you to import into eBird or another copy of Birdathon. The bird species source data and other resources used in this app come from the following sources: AviList, a unified global checklist of birds, is the core data set used for Birdathon. https://www.avilist.org. Some data has been integrated from the following sources: The eBird/Clements checklist of birds of the world (https://www.birds.cornell.edu/clementschecklist/download/), the American Ornithological Society's (AOS) Checklist of North and Middle American Birds (https://checklist.americanornithology.org), and the American Birding Association's (ABA) checklist of North American Birds (https://www.aba.org/listing-taxonomy/) Alpha codes come from The Institute for Bird Populations’ Standardized 4- and 6-letter Bird Species Codes. https://www.birdpop.org/pages/birdSpeciesCodes.php. County boundary data is from the United States Geological Survey (USGS) TIGER/Line 2019 Shapefiles found on the United States Census Bureau's website at https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.2019.html. Boundaries should be used as general guidelines and not be considered precise. Note especially where county boundaries follow creeks, rivers, ridge lines and other natural features, and so are of much finer resolution than can be shown on Birdathon’s maps. California breeding bird atlas blocks come from the California Bird Atlas, https://www.californiabirdatlas.org. California Bird Atlas logo and breeding code descriptions used with permission.
Microscope Resolution
Calculate microscope objective lens resolution and brightness. Match lenses to your imaging system and check sampling frequency. Save, share, and access calculation equations.
- Calculate lateral and axial resolution
- Calculate objective brightness
- Match objective to acquisition system
- Check Nyquist sampling frequency
- Save and restore objective data
- Share objective data
- Display calculation equations
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Characterize your microscope objective lenses, see how well matched they are to your microscope's image acquisition system. The App supports both transmitted light objectives and fluorescence objectives. Input the magnification, immersion medium (air, oil, glycerol or silicone oil), NA (numerical aperture), condenser NA and wavelength of light (lambda), to calculate the lateral resolution, axial resolution and brightness of the objective. Characterize your acquisition system (camera pixel size, camera binning and additional magnification) to check if you're sampling at Nyquist frequency. Each of your objectives can be saved and easily restored, and shared with other microscopists via e-mail, MMS, Linked-In or even Facebook. The equations used for the calculations can be displayed. The sources of equations are referenced in the "Information" section. * Theoretical Resolution is calculated according Ernst Abbe's famous equation (Abbe 1873) * Actual Resolution is calculated according to ‘The Rayleigh Criterion’ * Axial Resolution of fluorescence objectives is calculated according to Inoue's chapter in Jim Pawley's “Handbook of Biological Confocal Microscopy” (3rd edition 2006) * Camera pixel size can be loaded from the list of cameras, if your camera is not in the list, you can enter it manually. * Select the "share" feature to share all output to e-mail, MMS or Linked-In * It doesn't matter if your microscope was made by Zeiss, Evos, Leica, Olympus, Nikon, Motic, or Meiji Techno, the principles are identical and you will find the app useful. * The list of cameras in the Camera dialog includes those made by Andor, Hamamatsu, Photometrics, PCO, QImaging, Leica, Lumenera, Olympus, Nikon, Motic and Zeiss.
Screenshots
Verdict
The clearest difference is price: Birdathon at Free against Microscope Resolution's $1.99. Birdathon also leads on rating (4.7 vs 3.7) and ads (none vs shown). Microscope Resolution's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 16.1). On review sentiment, ratings volume, update cadence 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
Birdathon is free to download; Microscope Resolution costs $1.99 up front. Birdathon sells 4 one-off in-app purchases. Microscope Resolution asks for nothing beyond the download.
Birdathon holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 15 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Birdathon ships an update every 4 months, Microscope Resolution every 3 months. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.
| Parameter | Birdathon | Microscope Resolution |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.7 (15 ratings) — better | 3.7 (6 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 15 — better | 6 |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 192 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Barry Langdon-Lassagne | Andrew Barlow |
Customer experience
Birdathon
Microscope Resolution
In-app purchases
Birdathon
- Good Tip$0.99
- Great Tip$1.99
- Amazing Tip$2.99
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- Incredible Tip$4.99
Microscope Resolution
No in-app purchases
Questions
Is Birdathon free?
Is Microscope Resolution free?
Which has better reviews, Birdathon or Microscope Resolution?
Do Birdathon or Microscope Resolution have ads?
Which is updated more often, Birdathon or Microscope Resolution?
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