Grid Locator Calculator vs DxQSO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grid Locator Calculator
This app helps Amateur Radio operators quickly find their Maidenhead Grid Locator reference using their iPhone's GPS. It works offline and provides 10-digit locators, which can be truncated to 4 or 6 digits as needed. Ideal for portable operations in unfamiliar locations.
- Calculates 10-digit grid locators
- Uses iPhone GPS
- Offline functionality
- Supports 4, 6, and 10-digit locators
- Ideal for portable operations
Read full descriptionHide full description
For Amateur Radio operators who often travel to unknown places. Forgot to check GL reference? Do not worry. If you have iPhone and GPS is working then you can check your location's GL reference very easily. You do not need internet connection. Ideal if you go to mobile or portable operation often and not sure where GL boundaries are. App shows you 10 digit locator. If you need only 4 or 6 digit, just use first 4 digit or 6 digit, respectively. Note: Usually Grid Locator is 6 digit as defined in ARRL document. This 10 digit is expansion of 6 digit as 7th and 8th are divided by 10 ("0" through "9") then 9th and 10th are divided by 24 ("a" through "x"). This logic is based on article on Wikipedia.
DxQSO
This app consolidates your ham radio operating history from various logging software into a single, portable record. It features an AI assistant that suggests valuable contacts and alerts you to QSL confirmations and achievements.
- Consolidated logbook from multiple sources
- AI-powered contact suggestions
- Real-time QSO capture
- QSL and achievement alerts
- Private club and friend messaging
- Portable operations support
Read full descriptionHide full description
HAM RADIO THAT KNOWS YOU. DxQSO puts your entire operating life in your pocket — and instead of making you check, it tells you. Now with Co-Operator, your AI operating assistant, it also tells you what is worth working next. It works with the logging software you already use — N3FJP, Log4OM, N1MM+, Ham Radio Deluxe, WSJT-X, SmartSDR, SDR Control, the POTA app, and more. Nothing to relearn. DxQSO brings it all together into one living record you carry everywhere. CO-OPERATOR — YOUR AI OPERATING ASSISTANT Co-Operator learns how you operate from your own log: your bands, your modes and the hours you are usually on the air. It knows what you still need from your LoTW® and QRZ confirmations, and it watches the DX spots around the clock from your part of the world. When something you need is on the air and workable from your location, Co-Operator tells you. • Guidance: what to work right now, ranked for how you operate — new DXCC entities, new bands and modes, CQ zones, grids and more. • Alerts: in the app and by email, written in the language you choose, inside the hours you set. One switch pauses everything. Co-Operator is included with DxQSO Membership. YOUR LOGBOOK, IN YOUR POCKET Your complete operating history — every contact, across every log and every station — on your phone. Browse, search, and filter by call sign, band, mode, country, or DXCC entity, and see at a glance which contacts are confirmed and which are still pending. QSL AND ACHIEVEMENT ALERTS When LoTW or QRZ confirms a QSO, DxQSO lets you know. The moment a confirmed QSL earns you a new DXCC entity, a new state toward Worked All States (overall or by band) or a new grid, your phone tells you — with the award it counts toward. Choose in-app alerts, email, or both. DXSOCIAL — YOUR CLUB AND FRIENDS, LIVE DxSocial is a private space for your club, team, and friends, built right into DxQSO. Your club or contest team gets group messaging, shared files, and forums to plan activations, contests, and Field Day. Follow your friends to see their operating activity and achievements as they happen, find out what they are working, and share your own. ONE RECORD ACROSS EVERY LOG Run a single logbook at home, or a home shack, contest station, remote rig, and POTA field kit — DxQSO accepts ADIF from any source and consolidates everything into one searchable, always-current record. Keep the software you love; DxQSO does the bringing-together. REAL-TIME LOG CAPTURE The Network Listener captures QSOs automatically from SmartSDR, SDR Control, and any app that supports the N1MM UDP broadcast protocol. Log a contact at your radio and it is in DxQSO instantly — no export, no waiting. BUILT FOR POTA, SOTA & PORTABLE OPS In the field, DxQSO is your pipeline to LoTW and QRZ. Upload your ADIF on the spot, or let the Network Listener capture every QSO as you log it. When hunters confirm your contacts, your phone tells you — so you go home already knowing. DX-TQSL integration keeps your full QSO history with you whether or not you use LoTW. Sign up at dxqso.net and bring every one of your logs with you. 73 de DX Development Corporation If you choose to upgrade to a Member subscription of DxQSO, you will be charged $29.99 US each year as a "DxQSO" subscription in your Apple App Store account. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You may cancel at any time (by turning off auto renewal) using your Apple Store account prior to the day of the annual renewal. Please see our Terms and Conditions at: https://dxqso.org/terms and our Privacy Policy at https://dxqso.org/privacy. Logbook of The World and LoTW are registered trademarks of the American Radio Relay League (ARRL). QRZ and QRZ.com are trademarks of QRZ, LLC. DxQSO is not affiliated with or endorsed by the ARRL or QRZ, LLC.
Screenshots
Verdict
The clearest difference is in-app purchases: Grid Locator Calculator at none against DxQSO's 1. Grid Locator Calculator also leads on iOS requirement (10.0 vs 15.6). DxQSO's advantage is update cadence (every 2 weeks vs every 4 months). On price, review sentiment, 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. DxQSO sells 1 in-app purchase, starting at $29.99 per year. Grid Locator Calculator asks for nothing beyond the download.
Grid Locator Calculator ships an update every 4 months, DxQSO every 2 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | Grid Locator Calculator | DxQSO |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 22 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazunori Watanabe | DX Development Corporation |
Customer experience
Grid Locator Calculator
DxQSO
In-app purchases
Grid Locator Calculator
No in-app purchases
DxQSO
- DxQSO Annually$29.991 Year
Questions
Is Grid Locator Calculator free?
Is DxQSO free?
Do Grid Locator Calculator or DxQSO have ads?
Which is updated more often, Grid Locator Calculator or DxQSO?
Other comparisons















