HerpMapper vs VuSitu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HerpMapper
Record reptile and amphibian observations with photos, sounds, and GPS locations. Your data supports scientific research and conservation efforts globally. Access your findings online and contribute to a shared database.
- Record observations with photos and sound
- Automatic GPS location tagging
- Offline recording capability
- Searchable herpetofauna database
- Data contribution to research and conservation
- View records on the HerpMapper website
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HerpMapper is a 501(c)(3) nonprofit organization designed to gather and share information about reptile and amphibian observations across the planet. Using the HerpMapper mobile app, you can create records of your herp observations and keep them all in one place. In turn, your data is made available to HerpMapper Partners – groups who use your recorded observations for research, conservation, and preservation purposes. Your observations can make valuable contributions on the behalf of amphibians and reptiles. Using your phone’s camera and GPS capabilities, the HerpMapper mobile app creates a ‘voucher record’ of your find, incorporating photos of the animal, and recording the location. For calling frogs and toads, the app enables you to record and include a sound file in a record. The date and time of day are also recorded. The app features a searchable database of the common and scientific names for all of the world’s herpetofauna, and you can search for either type of name by entering just a fragment. The newest version of the app allows you to add multiple photos and soundfiles to a record The HerpMapper mobile app does not require wireless or cellular service in order to properly record locations - it uses your phone’s native GPS device, which remains in satellite contact when outside (many HerpMapper records have been recorded in remote corners of the globe). Once you are back in wireless or cellular range, you can upload (sync) your collected records to the HerpMapper database. Once uploaded, you can view any and all of your records from the HerpMapper website (www.herpmapper.org). Creating a HerpMapper account is fast, simple, and free, and you can use the site and the mobile app to keep track of your finds, build a life list, and contribute to science and herp conservation! Instructions for creating an account, and installing and using the mobile app, are listed on the HerpMapper website. Who can see the records you create? There are two levels of visibility for records. Only you and HerpMapper Partners have access to all of the data in the records you create. Other users of HerpMapper and the general public can only see very basic information in your records – they do not have access to exact locality data. Any pictures attached to a record have their locality metadata stripped, so they can be seen by everyone on the HerpMapper website, which means you can also see the cool herps being recorded by other people from around the world. Who are HerpMapper's Partners? For the most part, they are biologists working for state or regional agencies, university researchers, or conservation organizations across the globe. A list of HerpMapper Partners is maintained on the HerpMapper website.
VuSitu
Easily connect to water monitoring instruments to view, manage, and share water quality and quantity data. Configure, calibrate, and deploy instruments, view live readings, and set up logs. Securely store and share data through a cloud-based account.
- Connect to In-Situ instruments
- View live water quality data
- Configure and calibrate instruments
- Create and manage log files
- Secure cloud data storage
- Share data via HydroVu
- Instant graphing for readings
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Connect the VuSitu mobile app to In-Situ Inc. water monitoring instruments and telemetry to easily view, manage and share water quality and quantity data. Use any Bluetooth-enabled mobile device to configure, calibrate and deploy your instruments, view live readings, and set up logs. Log in to your HydroVu account for secure data storage and sharing. A user-friendly walkthrough makes it easy to set up log files of all types, even with delayed starts or offset entry. View real-time data on multiple water quality parameters, run low-flow sampling events from your phone, and quickly share your data with colleagues via HydroVu. The VuSitu mobile app makes it easy to: • Interface with In-Situ Inc. instruments • Configure VuLink telemetry devices • Gather real-time water quality and water level data • Create logs and manage log data for all supported instruments • Open data files in Excel or parse into other systems • Securely store all data files in the cloud • Calibrate your instruments • Use instant graphing to determine when to start and stop readings • Receive firmware updates for connected instruments and communication devices with embedded automatic updates or custom downloaded files • View data for conductivity, optical dissolved oxygen (DO), ORP, pH, turbidity, water level/pressure, temperature, ammonium, nitrate, chloride sensors, chlorophyll a, phycocyanin (BGA-PC), phycoerythrin (BGA-PE), FDOM, crude oil, rhodamine WT, fluorescein WT • Define geographic locations with GPS coordinates and photos • Select measurement units • Run low-flow sampling events with your Aqua TROLL 400/500/600 using managed workflows on your phone VuSitu is currently available for the Level TROLL®, Rugged TROLL®, Aqua TROLL®, MPX4, VuLink®, RDO® Blue, and RDO® handheld instruments, for surface water, groundwater, coastal, wastewater, drinking water and aquaculture applications.
Screenshots
Verdict
The clearest difference is review sentiment: VuSitu at 100% against HerpMapper's 42%. VuSitu also leads on rating (4.9 vs 3.5). On price, ratings volume, update cadence and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VuSitu holds the better App Store score, 4.9 against 3.5. Both are backed by a comparable volume of ratings — 24 and 16 respectively. Written reviews point the same way: 42% of HerpMapper's written reviews are positive against 100% of VuSitu's.
HerpMapper ships an update every 3 months, VuSitu every 6 weeks. The most recent releases landed on June 1, 2026 and August 21, 2026 respectively.
| Parameter | HerpMapper | VuSitu |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (24 ratings) | 4.9 (16 ratings) — better |
| Positive reviews | 41.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 16 |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 67 MB | 170 MB |
| Age rating | 4+ | 4+ |
| Developer | Donald Becker | In-Situ Inc. |
Customer experience
HerpMapper
VuSitu
In-app purchases
HerpMapper
No in-app purchases
VuSitu
No in-app purchases









