Comparison

Tide Graph Pro vs Bristol Maps

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

Head to head
About

Tide Graph Pro

Access up-to-date and historical tide and water current predictions for over 9000 US locations offline. Visualize data with daily, weekly, monthly, and yearly graphs, and receive customizable alerts for high and low tides.

Highlights
  • Offline tide and water current predictions
  • Over 9000 US locations
  • Daily/Weekly/Monthly/Yearly tide graphs
  • High/Low tide alert notifications
  • Apple Watch integration
  • GPS/Map/Search tides
Features
Currently charting
Read full description

Tide Graph Pro universal app provides over 9000 up to date and historical US tide and water current predictions without the need for an internet connection. The scrolling design and the optimized prediction engine was developed from the ground up based on formulas and data provided by the National Oceanic and Atmospheric Administration (NOAA). Additional Features of Pro version - Daily/Weekly/Monthly/Yearly tides graphs - Multiple Stations - High/Low tide Alert Notifications - Apple Watch Integration - Designed for iPad/iPhone and iPhoneX - Moon Chart - GPS/Map/Search Tides - Barometric Pressure calibration - Time offset calibration

About

Bristol Maps

Navigate commercial fishing grounds with up-to-date satellite imagery and tide data. Plan routes, log catches, and share information with private groups. Enhances fishing efficiency and safety.

Highlights
  • Latest satellite imagery overlays
  • Tide and weather forecasts
  • Digital logbook for catches
  • Private groups for sharing
  • Customizable boundary alarms
  • Waypoint and route creation
Features
Read full description

Bristol Maps is designed specifically for commercial fishermen to navigate using the latest satellite imagery. Currently serving Bristol Bay and Copper River watersheds. Say goodbye to outdated maps and inaccurate information - our app utilizes the latest, detailed images for increased efficiency, safer fishing trips, and a higher return on investment. As a fisherman like you, I've always used NOAA charts for the Bay. Given how fast the environment changes, these are at best, unreliable and at worst, dangerous. For this I developed Bristol Maps, an app that leverages curated satellite images taken during low tide, displaying the current bar locations, and allows for multiple images to be layered. For areas with multiple images at varying tides, this app allows you to see where there will, or won’t be navigable water. Additionally, these images can be overlayed onto the traditional NOAA charts. Beyond the core mapping functionality, tide and weather forecasts are also available. Weather can be pinpointed to a location as well as the nearest NOAA zone weather forecast. This information can be combined with the mapping functionality to create digital logs. Location, catch, weather, and tide data can be integrated into a log event. Logs can be overlaid onto the navigation page and analyzed to view catch data by area, gear type (4.75" vs 5"), and weather. Feature list: * Private groups for sharing location, custom routes and waypoints. * Private group chat. * Satellite overlays available for: Naknek/Kvichak, Egegik, Ugashik, Nushagak, and Copper River. Updated seasonally. * NOAA overlays available offline for all of Alaska. * Location grid layouts, organized by color and number, which can replace traditional paper maps or code tables shared by Groups. ie: "I'm over by green 22." A search tool is included to quickly find locations. * NOAA tide charts available offline for Bristol Bay tide stations. Other locations downloaded as they are used. * Pinpoint weather forecasts available as well as NOAA zone weather forecasts. * Boundary lines (with “alarm” functionality), for all major districts are preprogrammed along with the ability to create new boundaries. * Create Waypoints and Routes. These can also be exported/imported to/from other users to share data. * Online maps can be streamed with NOAA charts, custom satellite views, a high-res AK Government view, and street view. * Log entries for recording opener times, district, pictures, sets/deliveries, and automatic tide/weather history. Bristol Maps has been designed with an intuitive, user friendly interface to solve a common fisherman problem. Bristol Maps Pricing $200/Year A one-week free trial is included for testing and includes free cancellation. Subscription includes updates, bug fixes and seasonal imagery additions.

Screenshots

Tide Graph Pro4 screens
Bristol Maps3 screens

Verdict

The call

The clearest difference is price: Bristol Maps at Free against Tide Graph Pro's $5.99. Bristol Maps also leads on update cadence (every 5 days vs every 3 weeks). Tide Graph Pro's advantage is rating (4.8 vs 4.0) and in-app purchases (none vs 1). On ads, device support and iOS requirement 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

Bristol Maps is free to download; Tide Graph Pro costs $5.99 up front. Bristol Maps sells 1 in-app purchase, starting at $200.00 per year. Tide Graph Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tide Graph Pro holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Tide Graph Pro has 3.6K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 85% of Tide Graph Pro's written reviews are positive against 50% of Bristol Maps's.

UpkeepUpdate frequency

Tide Graph Pro ships an update every 3 weeks, Bristol Maps every 5 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard8 real differences · 3 level
Tide Graph Pro versus Bristol Maps: the parameters behind the verdict, then further details
ParameterTide Graph ProBristol Maps
Price$5.99Free — better
Rating4.8 (3.6K ratings) — better4.0 (14 ratings)
Positive reviews84.5% of reviews — better50.0% of reviews
Number of ratings3.6K — better14
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
Best chart rank#65 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size34 MB75 MB
Age rating4+4+
DeveloperBrainware LLCChris Hager

Customer experience

Tide Graph Pro

All ratings3,605 ratings
Positive96.5%
Neutral1.7%
Negative1.8%
Written reviews97 reviews
Positive84.5%
Neutral5.2%
Negative10.3%

Bristol Maps

All ratings14 ratings
Positive71.4%
Neutral7.1%
Negative21.4%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Bugs and requests

Tide Graph Pro

Reported bugs

3 issues
  • Crashes on startup for some users
  • Saved locations disappearing after updates
  • Apple Watch app not refreshing properly

Requested features

4 requests
  • Current and current predictions
  • Ability to quickly jump to current time
  • More customization options
  • Expanded coverage for additional regions

Bristol Maps

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tide Graph Pro

No in-app purchases

1 purchases

Bristol Maps

Subscriptions1
  • Bristol Maps7 Days trial$200.001 Year

Questions

Is Tide Graph Pro free?
Tide Graph Pro costs $5.99, with no in-app purchases.
Is Bristol Maps free?
Bristol Maps is free to download, with in-app purchases available.
Which has better reviews, Tide Graph Pro or Bristol Maps?
Tide Graph Pro is rated higher. Tide Graph Pro averages 4.8 out of 5 from 3.6K ratings, while Bristol Maps averages 4.0 from 14 ratings.
Do Tide Graph Pro or Bristol Maps have ads?
Neither Tide Graph Pro nor Bristol Maps shows ads.
Which is updated more often, Tide Graph Pro or Bristol Maps?
Tide Graph Pro ships an update every 3 weeks, and Bristol Maps every 5 days. Most recently, Tide Graph Pro was updated on October 2, 2026 and Bristol Maps on October 1, 2026.

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