Tide Graph vs ACR Product App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tide Graph
This app provides interactive tide graphs with over 10 billion predictions for US coastal stations. It also displays sunrise, sunset, moonrise, moonset, and moon phases. Save locations and graphs for easy access.
- Interactive tide graphs
- Sunrise, sunset, moonrise, moonset tracking
- Moon phase display
- Save recent locations
- GPS location finder
- Save graphs for later
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- Provided over 10 billion predictions - Supports iOS 11+, Watch OS 4.3+, iPhone 7+ Tide Graph uses the harmonic predictions from thousands of US coastal stations and presents them in a fun and interactive graph. And now, in version 2.0 you also get an intuitive graph that shows sunrise, sunset, moonrise, moonset, and moon phase at a glance. Save recent locations, find locations using GPS location, and save graphs for later. Tides have a great influence on the lives of boaters, fishermen, surfers, coastal communities, marine life, and vacationers just to name a few. Directly or indirectly, the great flow of our massive ocean bodies of water impact the daily lives of everyone on this planet. The cyclical movement of the Earth's tides are caused by a combination of the gravitational forces of the sun and moon as well as the shape of the costal region. Unlike simple tide clocks that you can buy in novelty stores, more accurate tide predictions use special data gathered by instruments located at each tide station. The data from these measurements are used to determine the harmonic components which then feed into the mathematical algorithms which predict tides for the future. The end results are tested for accuracy and adjustments are made as necessary. Tide Graph has US owned Tide Stations Only. An internet connection is required to get the latest tide graph. - See TideGraph.com for a complete list of stations.
ACR Product App
Access Class B AIS and Emergency PLB/EPIRB data. View live AIS targets, check distress beacon details, and monitor battery status via NFC or WiFi. Configure your AIS with vessel information.
- View live AIS targets
- Check PLB/EPIRB distress beacon details
- Monitor beacon operation time and battery condition via NFC
- Configure Class B AIS with vessel details via WiFi
- Access ACR CB2 WiFi connection for AIS data
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The ACR App allows easy access to Class B AIS and Emergency PLB/EPIRB information. Live AIS targets can be displayed as well as Test and Ownership details for Distress Beacons. NFC (Near Field Communication) allows access to ResQLink AIS PLB and GlobalFix V5 details where operation time, Battery condition and test results can be easily checked and displayed on a mobile device. The use of NFC ensures that maximum battery capacity can be ensured giving you confidence that a Beacon will give maximum performance when required in an emergency situation. WiFi connection to the ACR CB2 gives access to live AIS target data along with status and performance details. Initial configuration with vessel details for the CB2 Class B AIS is also carried out via the WiFi connection.
Screenshots
Verdict
The clearest difference is review sentiment: Tide Graph at 70% against ACR Product App's 22%. Tide Graph also leads on rating (4.8 vs 1.7) and ratings volume (1.6K vs 36). ACR Product App's advantage is price (Free vs $1.99) and in-app purchases (none vs 12). On 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
ACR Product App is free to download; Tide Graph costs $1.99 up front. Tide Graph sells 11 one-off in-app purchases. ACR Product App asks for nothing beyond the download.
Tide Graph holds the better App Store score, 4.8 against 1.7. That said, the two scores are not equally well evidenced: Tide Graph has 1.6K ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 70% of Tide Graph's written reviews are positive against 22% of ACR Product App's.
Tide Graph ships an update every 6 weeks, ACR Product App every 2 months. Both last shipped on October 24, 2026.
| Parameter | Tide Graph | ACR Product App |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.8 (1.6K ratings) — better | 1.7 (36 ratings) |
| Positive reviews | 69.6% of reviews — better | 21.7% of reviews |
| Number of ratings | 1.6K — better | 36 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #72 — better | — |
| Devices | iPhone, iPad, iPod, Apple TV, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 30 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Brainware LLC | Ocean Signal Limited |
Customer experience
Tide Graph
ACR Product App
Bugs and requests
Tide Graph
Reported bugs
3 issues- Tide data inaccuracies reported in some locations
- Crashes and freezes when switching between stations
- Date/time display issues in certain cases
Requested features
5 requests- Offline mode for tide data
- Ability to save favorite locations
- Larger tide graph for better visibility
- Option to switch between metric and imperial units
- Automatic updates to latest tide information
ACR Product App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tide Graph
- 2015 Tides and Currents$0.99
- 2016 Tides and Currents$0.99
- 2017 Tides and Currents$0.99
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- 2018 Tides and Currents$0.99
- 2019 Tides and Currents$0.99
- 2020 Tides and Currents$0.99
- 2021 Tides and Currents$0.99
- 2022 Tides and Currents$0.99
- 2023 Tides and Currents$0.99
- 2024 Tides and Currents$0.99
- 2026 Tides and Currents$0.99
ACR Product App
No in-app purchases









