NMEA Talker vs SailTimer API™
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NMEA Talker
Connect external GPS receivers to your iOS device for highly accurate location data. Supports RTK networks and various data formats to achieve centimeter-level precision.
- Connect external GPS receivers
- RTK client for iOS
- Centimeter-level accuracy
- Supports NTRIP 1.0 and 2.0
- Handles RTCM and CMR data formats
- Utilizes device internet for corrections
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NMEA Talker is a Utility App that allows users to connect to the external receivers via our hardware. It includes a native RTK client for an iOS devices that allows a RTK capable GPS device connected to iOS via one of our accessory products to use data from RTK networks to produce cm level accuracy location data. RTK4iOS supports both NTRIP 1.0 and NTRIP 2.0 Casters and supports a wide variety of RTK data formats including RTCM, CMR etc. The RTK4iOS app detects and sends the necessary data to the NRTIP/Caster network, if the Caster requires data from GPS to generate localized corrections. App relies on iOS device's internet connectivity to connect to the specified NTRIP server, Download and Stream the GPS corrections to the connected GPS device. The GPS device has to be connected to the iOS using one of our Cable/Bluetooth products available online at AmanEnterprises.com Continued use of GPS running in the background can dramatically decrease battery life.. PLEASE NOTE: THIS APP REQUIRES EXTERNAL ACCESSORY TO CONNECT GPS TO IOS DEVICE.
SailTimer API™
This app bridges the gap between your SailTimer Wind Instrument and other navigation or performance apps. It also offers access to crowdsourced wind maps and marine weather animations through a subscription, enhancing your sailing experience with real-time wind data.
- Integrates with SailTimer Wind Instrument
- Delivers wind data to partner apps
- Crowdsourced wind maps
- Marine weather animations
- Supports chartplotter apps
- Real-time wind data
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This app allows you to use SailTimer products in other partner apps. First, if you have the wireless SailTimer Wind Instrument (www.SailTimerWind.com), this app can receive the transmissions and deliver them to other apps for viewing. Use this app with the the SailTimer™ chartplotter app, or with lots of other navigation, wind gauge or performance apps (https://wi-rb.com/apps/). But what if you want to see what the wind is doing up ahead, or around the next point? Then you need our crowdsourced wind maps and marine weather animations. You can get the low-cost subscription here, to view our marine weather animations in partner apps. We'll add a growing list of partner apps at https://SailTimer.boats App web page: https://wi-rb.com/api. If you have a question or feedback please email info@SailTimer.co - we’re here to help. If you are getting the app and like this wireless technology, please help out other sailors by letting them know with a quick rating on this version while you’re here.
Screenshots
Verdict
The clearest difference is rating: SailTimer API™ at 5.0 against NMEA Talker's 3.8. NMEA Talker's advantage is in-app purchases (none vs 6) and ratings volume (4 vs 1). On price, update cadence, ads and device support 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. SailTimer API™ sells 6 in-app purchases, starting at $2.99 per month. NMEA Talker asks for nothing beyond the download.
SailTimer API™ holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
NMEA Talker ships an update every 2 months, SailTimer API™ every 4 weeks. The most recent releases landed on June 7, 2026 and August 19, 2026 respectively.
| Parameter | NMEA Talker | SailTimer API™ |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.2 — better | 16.6 |
| Further details — not scored | ||
| Size | 19 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Aman Enterprises Inc | SailTimer Inc. |
Customer experience
NMEA Talker
SailTimer API™
In-app purchases
NMEA Talker
No in-app purchases
SailTimer API™
- Crowdsourced Wind Maps - Monthly7 Days trial$2.991 Month
- WNI Marine Weather - Monthly7 Days trial$2.991 Month
- AI Forecasts - Monthly7 Days trial$2.991 Month
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- Crowdsourced Wind Maps - Yearly7 Days trial$19.991 Year
- WNI Marine Weather - Yearly7 Days trial$19.991 Year
- AI Forecasts - Yearly7 Days trial$19.991 Year
