NVS Explorer vs BottleDrop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NVS Explorer
Access real-time ocean data for the Pacific Northwest. Visualize conditions from various observing assets, view historical data plots, and share findings via email or SMS. Customize units and save favorite assets for quick access.
- View real-time ocean data
- Access 24-hour, 7-day, and 30-day data plots
- Share data plots via email or SMS
- Searchable list of observing assets
- Save favorite observing assets
- Display data in scientific or common units
- Data plots for tuna fishers
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Welcome to the Northwest Association of Networked Ocean Observing Systems (NANOOS) Visualization System (NVS), your tool for easy access to data for Pacific Northwest waters, from California to British Columbia. NANOOS is a regional member of the U.S. Integrated Ocean Observing Systems (IOOS) program and is funded by the National Oceanic and Atmospheric Administration (NOAA) to provide this service. NVS displays data from a diversity of providers, including federal, tribal, state, academic, industry and non-profit organizations, who operate a wide variety of observing assets such as buoys, shore stations, sea-bed and coastal land-based stations. This composite view provides a more comprehensive view of ocean conditions. NVS allows you to browse through a map of all NANOOS observing assets. You can then look at the most current data available, or obtain a plot of the last 7 days. Plots can be saved to your phone or iPod. Plots can shared by either email or SMS. FEATURES: o View the most recent data from all NANOOS observing assets o View 24 hour, 7 day and 30 day plots of data for trends in conditions o Share plots via Email or SMS o Searchable List view of Observing Assets o Favorites o Data display in either Scientific or Common Units o Plots for Tuna Fishers
BottleDrop
Easily return deposit containers and receive your refund. Access your account card, view your balance and bag history, and find nearby return locations. Manage your account information and receive important notifications.
- Return deposit containers
- Receive refunds
- Access account card
- View account balance
- Track bag history
- Find return locations
- Update account information
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BottleDrop is the easiest way to return your deposit containers and get your refund. With the app, you can access your account card, view your account balance and bag history, find locations, update your account information, receive account notifications, and more.
Screenshots
Verdict
The clearest difference is review sentiment: NVS Explorer at 60% against BottleDrop's 11%. NVS Explorer also leads on rating (4.3 vs 2.3) and monetization model (free vs ad-supported). BottleDrop's advantage is ratings volume (104 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NVS Explorer holds the better App Store score, 4.3 against 2.3. That said, the two scores are not equally well evidenced: BottleDrop has 104 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of NVS Explorer's written reviews are positive against 11% of BottleDrop's.
NVS Explorer ships an update every 3 months, BottleDrop every 2 months. The most recent releases landed on June 11, 2026 and September 21, 2026 respectively.
| Parameter | NVS Explorer | BottleDrop |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | 2.3 (104 ratings) |
| Positive reviews | 60.0% of reviews — better | 10.7% of reviews |
| Number of ratings | 3 | 104 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 19 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | NANOOS-IOOSASSOCIATION | Oregon Beverage Recycling Cooperative |
Customer experience
NVS Explorer
BottleDrop
Bugs and requests
NVS Explorer
Not enough reviews yet to summarise bugs or requests.
BottleDrop
Reported bugs
18 issues- Unexpected logout after period of inactivity
- Login failed errors despite correct credentials
- App won't progress past splash/start screen
- Crashes when accessing locations tab
- Internet connectivity error messages despite active connection
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- QR code unreadable by kiosk scanners
- Transfer buttons hidden behind other UI elements
- Venmo/PayPal transfer functionality non-functional
- Password expiration without notification
- Account recognition failures after logout
- Brightness settings not respecting system preferences
- App freezes during account activation
- Bag history not displaying or updating
- Virtual card not appearing in app despite website signup
- Force close required to restore functionality
- Deposits showing as pending indefinitely
- QR code positioning incompatible with larger phones
- Facial recognition not working despite activation
Requested features
11 requests- Dark mode for reduced eye strain in low light
- Biometric authentication (Face ID, Touch ID, PIN)
- Manual QR code entry option for unscanned bags
- Transaction history and detailed bag credit breakdown
- In-app bag and label ordering
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- Apple Wallet integration for digital card
- GPS-based location finder instead of manual entry
- Persistent login sessions to avoid constant re-authentication
- In-app cash withdrawal/transfer without kiosk visits
- Email notifications for password resets and account changes
- Account activity notifications
In-app purchases
NVS Explorer
No in-app purchases
BottleDrop
No in-app purchases
