Comparison

SODMAP Mobile vs ArcGIS Survey123

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SODMAP Mobile

This app helps users identify and assess the risk of Sudden Oak Death (SOD) in their area. It visualizes disease distribution, provides risk assessments based on proximity to confirmed cases, and encourages participation in surveys to improve data.

Highlights
  • Visualize SOD distribution with geo-location
  • View confirmed SOD-positive and negative specimens
  • Identify tree locations with pins
  • Assess SOD infection risk
  • Determine local disease incidence
  • Receive warnings for insufficient data
Features
Read full description

Sudden Oak Death (SOD) is an emergent disease caused by an exotic invasive pathogen affecting millions of oak and tanoak trees in California and Southern Oregon, and has the potential to spread to many other forests worldwide. It is currently one of the most regulated plant pathogens by most governments in the world. Besides infecting trees, the microbe that causes SOD may also be present in soil and in water bodies such as rivers, streams, and ponds. The SODMAP project (www.sodmap.org) is a collaboration of researchers, government organizations, and citizen-scientists working together to create one of the most complete distribution maps of a forest disease ever produced in North America. The UC Berkeley Forest Pathology and Mycology Laboratory (www.matteolab.org) SODMAP Mobile app extends this functionality to include: · Geo-location to visualize SOD distribution in relation to the user's location. · Laboratory confirmed SOD-positive, as well as, SOD-negative specimens to better illustrate the range and distribution of the disease. · Easy to identify tree location pins. · Risk assessment for SOD infection, based on the proximity of the user to laboratory confirmed cases of SOD. · Quick determination of local incidence of the disease and whether data are current or not for the local area. · Warning of insufficient surveying or a lack of current information about SOD distribution in the user's area. In case of insufficient availability of local data, the user is warned about the impossibility of determining risk and is prompted to participate in the volunteer SOD Blitz surveys (www.sodblitz.org) organized in the Spring of each year. SOD is an infectious and deadly tree disease, but contagion to oaks occurs only at short distances from previously infected trees. Knowledge of current fine-scale distribution of the disease is the key to its timely management. Treatments are available, but must be administered preventively, before oaks are infected. The SODMAP Mobile app is an aid to land owners and open space managers that will enable them to locate the nearest confirmed outbreaks of SOD, and to determine the risk of infection. It will also inform hikers and mountain bikers about the presence of SOD in recreational areas, indicating whether care should be given to prevent the further spread of the disease by the movement of infested soil. Finally, tree care specialists will use this SODMAP Moblie to determine the level SOD infestation and to design appropriate landscape management programs. To learn more about SOD and get involved in the SODMAP surveys, visit www.sodblitz.org This project made possible thanks to funding from: USDA Forest Service, State and Private Forestry The Gordon and Betty Moore Foundation

About

ArcGIS Survey123

Capture precise, location-aware data in the field using smart forms, even offline. Seamlessly sync collected information with your ArcGIS platform for real-time analysis and decision-making. Ideal for public feedback, inspections, and documenting field conditions.

Highlights
  • Smart forms for data collection
  • Offline data capture and syncing
  • Location-aware data with GPS
  • Support for various question types
  • Photo and audio attachments
  • Data validation and skip logic
  • Integration with ArcGIS platform
Features
Read full description

Smart forms and surveys for digital data collection. ArcGIS Survey123 helps mobile workers collect field data with speed and precision. Capture location-aware survey responses anytime, anywhere—even offline—and sync seamlessly with your ArcGIS platform for real-time analysis and decision-making. From gathering public feedback to conducting inspections or documenting field conditions, Survey123 helps ensure data capture is efficient and reliable. ArcGIS is available on your desktop, in a browser, and on smartphones or tablets. Survey123 is Esri's form-centric app on mobile devices. Note: Survey123 is designed for organizational use. This app requires you have an ArcGIS organizational account to collect and update data. Public surveys shared by organizations can be accessed without sign in for crowd sourcing or citizen science purposes. Collect and submit data with precision: - Capture data using a wide variety of question types including text, map, choice lists, dates, photos, signatures, and barcodes. - Collect data online or offline and sync when connected. - Capture location information using device GPS. - Use maps in surveys to select points. - Apply skip logic, calculations, and data validation to ensure high-quality responses. - Attach photos and audio to survey responses. - Create multilingual surveys. Work securely with your organization: - Securely connect to your ArcGIS Online or ArcGIS Enterprise organization. - Submit surveys to trigger feature service webhooks that automate downstream workflows. Collaborate and analyze results: - Access and complete publicly shared surveys in the field without needing to sign in, allowing you to provide feedback or contribute data for crowd sourcing projects. - Integrate data submitted from the Survey123 field app with ArcGIS Dashboards, ArcGIS Experience Builder, and other ArcGIS solutions to enhance visualization and analysis. - Submit reliable survey data to support professional reports, which can be generated using customizable report templates on the Survey123 website. - Submit survey data in the field to make it available for export in formats such as CSV, Excel, shapefile, or file geodatabase through the Survey123 website, ArcGIS Online or ArcGIS Enterprise.

Screenshots

SODMAP Mobile3 screens
ArcGIS Survey1234 screens

Verdict

The call

The clearest difference is rating: SODMAP Mobile at 4.0 against ArcGIS Survey123's 2.7. SODMAP Mobile also leads on review sentiment (50% vs 12%) and iOS requirement (6.0 vs 13.0). ArcGIS Survey123's advantage is ratings volume (223 vs 3). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SODMAP Mobile holds the better App Store score, 4.0 against 2.7. That said, the two scores are not equally well evidenced: ArcGIS Survey123 has 223 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of SODMAP Mobile's written reviews are positive against 12% of ArcGIS Survey123's.

UpkeepUpdate frequency

SODMAP Mobile ships an update every 4 months, ArcGIS Survey123 every 2 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
SODMAP Mobile versus ArcGIS Survey123: the parameters behind the verdict, then further details
ParameterSODMAP MobileArcGIS Survey123
PriceFreeFree
Rating4.0 (3 ratings) — better2.7 (223 ratings)
Positive reviews50.0% of reviews — better12.1% of reviews
Number of ratings3223 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better13.0
Further details — not scored
Size1 MB221 MB
Age rating4+4+
DeveloperDoug SchmidtESRI

Customer experience

SODMAP Mobile

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

ArcGIS Survey123

All ratings212 ratings
Positive39.6%
Neutral9.4%
Negative50.9%
Written reviews91 reviews
Positive12.1%
Neutral15.4%
Negative72.5%

Bugs and requests

SODMAP Mobile

Not enough reviews yet to summarise bugs or requests.

ArcGIS Survey123

Reported bugs

16 issues
  • Continuous location services polling even when app is closed
  • iPhone 17 photo capture causes complete app crash
  • Keyboard hangs during form data entry
  • App crashes on login attempts
  • Submit checkbox occluded by keyboard
Show 11 more
  • Unknown error messages on photo/data submission
  • Geopoint displays incorrect location (Africa/Atlantic Ocean)
  • Paste answers from favorites feature broken
  • External CSV calculations not functioning after updates
  • Rating option displays radio buttons with misaligned star images
  • Map library shows no compatible maps found
  • Related tables cause send/edit failures
  • Refresh loop when exiting surveys
  • Account creation paradox (need account to create account)
  • Federated credential sign-in not supported
  • Duo 2FA not displaying properly in embedded browser

Requested features

12 requests
  • Edit sent survey data capability
  • Multiple photo selection from library
  • Magic keyboard trackpad support for iPad
  • Previous answers dropdown for repeated data entry
  • Desktop/web-based survey completion
Show 7 more
  • Submit button always visible (not hidden by keyboard)
  • macOS app compatibility
  • Video selection from photo library
  • Note section for additional details
  • Arabic language support
  • Improved keyboard handling and exit mechanisms
  • Most recent surveys shown first by default

In-app purchases

None

SODMAP Mobile

No in-app purchases

None

ArcGIS Survey123

No in-app purchases

Questions

Is SODMAP Mobile free?
SODMAP Mobile is free to download, with no in-app purchases.
Is ArcGIS Survey123 free?
ArcGIS Survey123 is free to download, with no in-app purchases.
Which has better reviews, SODMAP Mobile or ArcGIS Survey123?
SODMAP Mobile is rated higher. SODMAP Mobile averages 4.0 out of 5 from 3 ratings, while ArcGIS Survey123 averages 2.7 from 223 ratings.
Do SODMAP Mobile or ArcGIS Survey123 have ads?
Neither SODMAP Mobile nor ArcGIS Survey123 shows ads.
Which is updated more often, SODMAP Mobile or ArcGIS Survey123?
SODMAP Mobile ships an update every 4 months, and ArcGIS Survey123 every 2 months. Most recently, SODMAP Mobile was updated on November 1, 2026 and ArcGIS Survey123 on November 8, 2026.

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