Lock Status vs AGLCA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lock Status
Provides real-time information on U.S. river locks and dams. Get contact details and see upcoming locks for your waterway journey. Essential for boaters and canoeists navigating rivers.
- Up-to-date lock information
- Contact methods for locks
- Upcoming lock identification
- Supports waterway journeys
- River and dam status
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Canoeing down the Mississippi? Pushing a tow up the Ohio? Crossing Florida on the Okeechobee Waterway, or spending a year on the Great Loop? Sooner or later you'll reach a lock. Lock Status shows what's happening at every U.S. Army Corps of Engineers navigation lock, so you know what's ahead before you get there. SEE EVERY LOCK • Delays, stoppages and the vessels waiting and locking through, colored by how busy each lock is • Pool and tailwater levels, chamber sizes, lock hours and navigation notices • Browse by river, search by name, find the locks closest to you, or use the map • Favorite the locks you pass most often HAIL THE LOCK • Each lock's VHF channel and phone number, one tap to call • Towboats: see whether the tow fits the chamber, or how many cuts it needs • Pleasure boaters: what to say on the radio, plus tips for locking through PLAN YOUR TRIP • Build a route lock by lock, and see the next lock, how far it is and what's waiting there • Great Loop planning, with the Loop's route choices MADE FOR THE WATER • Night mode in red on black protects your night vision in the pilothouse; Sun mode adds contrast for bright days • In a dead spot, the app shows the last data it loaded and when it's from, and refreshes when you're back in range • Widgets for your Home Screen, Lock Screen, Mac desktop and menu bar • In English, Spanish, French, Russian, Chinese, Vietnamese, Filipino and Haitian Creole • Full VoiceOver support and larger text sizes LOCK STATUS PREMIUM Free: lock status, delays, stoppages, queues, the map, VHF channels and phone numbers, what to say on the radio, one trip, widgets, and Night and Sun modes. Premium adds: • Alerts when a stoppage starts or clears, a delay passes your limit, or a navigation notice is posted, even when the app is closed • Live Activities that keep a lock updated on your Lock Screen and in the Dynamic Island • The full trip planner: more than one trip, Great Loop planning, arrival times and the delays ahead • 30 days of traffic and monthly cargo tonnage at every lock Premium is $1.99 a month or $9.99 a year, with a free first week. It's billed to your Apple Account and renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it anytime in your Apple Account settings. Lock information comes from the U.S. Army Corps of Engineers' public Lock Performance Monitoring System and is provided on a best-effort basis. Lock Status isn't affiliated with the Corps of Engineers. Always follow the lockmaster's instructions. Terms of Use: https://lockstatus.ajthom.dev/terms/ Privacy Policy: https://lockstatus.ajthom.dev/privacy/
AGLCA
Plan your Great Loop adventure with this navigation app. Discover sponsor locations, Harbor Hosts, and member-designated points of interest along the route. Members gain access to exclusive features like location-based Harbor Host finding and sponsor discounts.
- Great Loop route visualization
- Sponsor and Harbor Host locations
- Member-exclusive points of interest
- Great Loop FAQs and boat information
- Sample itineraries
- GPX file downloads for navigation apps
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America’s Great Loop Cruisers’ Association’s app helps you plan stops on your Great Loop adventure by showing you the route itself, and where you can find our sponsors, Harbor Hosts, and “Best of the Loop” points of interest in more than 10 categories as designated by our members. All app users can review the Great Loop route, read FAQs about the Great Loop route and Great Loop-capable boats, and learn more about each segment of the Great Loop. AGLCA members enjoy additional features, such as finding Harbor Hosts near their current location, getting discount offers from our sponsors, and seeing details about each “Best of the Loop” point of interest. AGLCA members can also see a sample itinerary for the Great Loop that shows just one of the thousands of combinations of stops you can make on the Great Loop. You can also download .gpx files for each leg that can be imported into your navigation app for review.
Screenshots
Verdict
The clearest difference is review sentiment: AGLCA at 100% against Lock Status's 50%. AGLCA also leads on rating (4.9 vs 4.4) and ratings volume (471 vs 7). Lock Status's advantage is monetization model (free vs freemium). 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.
AGLCA holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: AGLCA has 471 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 50% of Lock Status's written reviews are positive against 100% of AGLCA's.
Lock Status ships an update every 4 months, AGLCA every 3 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.
| Parameter | Lock Status | AGLCA |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (7 ratings) | 4.9 (471 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 | 471 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 10 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Thom | Land and Sea Software |
Customer experience
Lock Status
AGLCA
In-app purchases
Lock Status
No in-app purchases
AGLCA
No in-app purchases








