Affordable RTK GNSS receivers for use with GPS TrackMaker on Android and iOS
This page lists only affordable RTK GNSS receivers, an accessible alternative to traditional surveying equipment. Approved means that our team tested the receiver with GPS TrackMaker. The unit connects to the app, receives Online Correction and reaches RTK FIXED, the centimeter solution. Approval applies to the model we tested, not to the GNSS engine. Two receivers with the same engine can behave differently. The list grows as new models pass our tests.
GPS TrackMaker works with RTK on Android and on iPhone (coming soon). On Android, receivers normally connect by Bluetooth LE, by Bluetooth Classic or by USB cable. On iPhone, only by Bluetooth LE. Apple’s system does not accept Bluetooth Classic or a USB cable for this type of receiver. That is why some models on the list work only on Android.
TrackMaker does not sell this equipment and is not responsible for its warranty. You buy directly from the manufacturer or from the seller indicated in each receiver’s details.
New to the subject? Start with the article RTK in GPS TrackMaker: from meter-level GPS to centimeter accuracy, which explains what RTK is, where the correction comes from and what you need to use it.
Quick comparison
| Model | Price | iPhone (iOS) | Base station | Satellite PPP | Ready to use |
|---|---|---|---|---|---|
| DATAGNSS NANO RTK Pro | $ | Yes | Yes | No | Yes |
| AK330 | $ | No | Yes | No | No |
| SMAJAYU SMA25R Net | $$$$$ | No | No | Galileo HAS | Yes |
The price scale, from $ to $$$$$, only compares the models on this list with each other. All of them are affordable. Even the $$$$$ is among the least expensive GNSS receivers on the surveying market. All of them work on Android, as a rover, and reach RTK FIXED with a correction. Satellite PPP is a correction received straight from the satellite, without internet. The table shows which system is used, because each one covers a different region of the world.
Receiver details
DATAGNSS NANO RTK Pro
A small, affordable receiver that is ready for RTK out of the box. It is the one we recommend to get started, and the only one on the list that also works on iPhone.
| Feature | Details |
|---|---|
| Price | $ |
| Platforms | Android and iPhone (iOS) |
| Roles | Rover and base station |
| GNSS engine | DATAGNSS D10P |
| Satellite PPP | No |
| Connection to the phone | Bluetooth LE, on Android and iPhone. USB-C cable, on Android only. |
| Power | Through the USB-C port, from a power bank. On Android, connected by cable, the phone itself powers the receiver. It has no battery. |
| Antenna | External, with an SMA connector. It comes in the kit. |
| Ready to use | Yes. RTK out of the box, with no license or configuration. |
| Tested in | September 2026, with GPS TrackMaker 2.0 for Android. Unit tested with the D10P module (NANO RTK Receiver v3.5). |
| Where to buy | DataGNSS, which ships internationally. Choose the option with the antenna or the more complete package, which includes the handheld mount. |
| Step by step | DATAGNSS NANO RTK Pro: centimeter accuracy in GPS TrackMaker |
AK330
A multi-band GNSS antenna made for tractors, with great performance for a low price. It requires a firmware update and technical knowledge.
| Feature | Details |
|---|---|
| Price | $ |
| Platforms | Android only |
| Roles | Rover and base station |
| GNSS engine | ComNav K803 |
| Satellite PPP | No |
| Connection to the phone | Bluetooth Classic, which the iPhone does not accept |
| Power | External, 9 to 36 V. With a power bank, it needs a cable that steps 5 V up to 12 V. |
| Antenna | Built in. The receiver sits inside the antenna itself. |
| Ready to use | No. Our unit only accepted corrections after a firmware update done with the housing open. |
| Tested in | September 2026, with GPS TrackMaker 2.0 for Android and firmware 7.4.6. With the factory firmware, 7.4.2, our unit did not do RTK. |
| Where to buy | Seller’s store on AliExpress. Look for the AK330 and do not confuse it with the AK350, which has no Bluetooth. |
| Step by step | AK330: a tractor GNSS antenna turned into a centimeter RTK receiver |
SMAJAYU SMA25R Net
A handheld receiver with built-in battery and antenna, ready for the pole. It is the most complete on the list and, even so, one of the least expensive GNSS receivers on the surveying market. It is the only one on the list with satellite PPP, which needs no internet. It has a tilt sensor, which GPS TrackMaker does not use yet.
| Feature | Details |
|---|---|
| Price | $$$$$ |
| Platforms | Android only |
| Roles | Rover only. It cannot work as a base station. |
| GNSS engine | Unicore UM980 |
| Satellite PPP | Yes, through Galileo HAS (E6 signal). We tested it in Brazil. Decimeter accuracy, after several minutes to an hour. |
| Connection to the phone | Bluetooth Classic, which the iPhone does not accept |
| Power | Internal battery, with about 16 hours of use according to the manufacturer. |
| Antenna | Built in |
| Ready to use | Yes. It reached RTK FIXED without any configuration. |
| Tested in | September 2026, with GPS TrackMaker 2.0 for Android and the factory firmware. |
| Where to buy | SMAJAYU store on Amazon Brazil. In other countries, look for the brand on your local Amazon. |
| Step by step | Coming soon |
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