Comparison

PJConverter vs Coordinate map, query location

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

Head to head
About

PJConverter

This tool offers precise coordinate transformations for GIS, surveying, and engineering professionals. It supports thousands of global coordinate systems and allows for custom projection creation with real-time validation and visual previews. Streamline your spatial data management with this efficient utility.

Highlights
  • Professional-grade conversion engine
  • Extensive library of coordinate systems
  • Customizable projection creation
  • Visual projection previews
  • Flexible format support
  • Intuitive user interface
Features
Read full description

PJ Converter is the ultimate coordinate conversion tool designed for professionals and students in Geographic Information Systems (GIS), surveying, engineering, and related fields. Whether you're working with geodetic or projected coordinates, it delivers unparalleled accuracy and ease of use. Key Features * Professional-Grade Conversion Engine: Powered by the widely-used PROJ library to ensure every calculation is accurate and reliable. It supports forward, inverse, and full coordinate transformation pipelines to meet the most demanding professional needs. * Vast Coordinate System Library: Comes with thousands of built-in Coordinate Reference Systems (CRS) from authoritative sources like EPSG, covering the entire globe. The powerful search helps you find what you need in seconds. * Advanced Custom Projections: Need something specific? Easily create, edit, and manage your own projection definitions. The editor provides real-time syntax validation and ID conflict detection to make complex configurations foolproof. * Visual Projection Preview: Instantly generate a world map preview for any coordinate system. Visually assess a projection's distortion, area of use, and characteristics before you apply it. No more guesswork. * Flexible Formatting: Seamlessly switch between degrees (DMS) and radians for geographic coordinates. Pick coordinates visually from an integrated map to meet diverse data input and display requirements. * Simple & Efficient Experience: The "Recents" list automatically saves your frequently used projections for quick access. The entire interface is clean and focused, letting you perform conversions without distraction. PJ Converter is the ideal choice for field engineers, GIS analysts, geography students, and anyone who works with spatial data. Download now and make complex coordinate conversions simpler and more efficient than ever before.

About

Coordinate map, query location

Features
Read full description

Coordinate map can help you convert longitude and latitude coordinates into specific locations on the map, and you can also easily query the corresponding longitude and latitude coordinates on the map location. It can easily locate the map when you are doing engineering work, field search, etc. Features of application functions: - Coordinate conversion, one click calculation and conversion of GPS position on the map, conversion between vertical and horizontal coordinates, longitude and latitude, etc; - It is simple to use, supports most coordinate systems, and realizes the conversion between different longitude and latitude coordinate units; - Map positioning, updating the map coordinate information in real time, marking the specific position of longitude and latitude coordinate data on the map; - Location query: quickly search the location, query the corresponding coordinate longitude and latitude information, and view the map information of the coordinate. [About Subscription] You can subscribe to have an ad-free experience and to unlock features within Netspeed test. Subscriptions are auto-renewable and are billed weekly at the rate selected depending on the subscription plan. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Payment will be charged to iTunes Account at confirmation of purchase. Subscriptions can be managed, and auto-renewal can be turned off in Account Settings in iTunes after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. - Terms of Use:http://dbkd.jixiansum.xyz/account/vrisingv/ios/6h2AQ52pq4I.html - Privacy Policy: http://dbkd.jixiansum.xyz/account/vrisingv/ios/EIQsRbivvwOzLqF3XYRiuy04P9neUN.html

Screenshots

PJConverter4 screens
Coordinate map, query location4 screens

Verdict

The call

The clearest difference is price: Coordinate map, query location at Free against PJConverter's $0.99. Coordinate map, query location also leads on iOS requirement (12.0 vs 17.0). PJConverter's advantage is in-app purchases (none vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

Coordinate map, query location is free to download; PJConverter costs $0.99 up front. Coordinate map, query location sells 1 in-app purchase, starting at $1.99 per 7 days. PJConverter asks for nothing beyond the download.

UpkeepUpdate frequency

PJConverter ships an update every 7 months, Coordinate map, query location every 4 months. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 5 level
PJConverter versus Coordinate map, query location: the parameters behind the verdict, then further details
ParameterPJConverterCoordinate map, query location
Price$0.99Free — better
Positive reviews50.0% of reviews—
Update frequencyEvery 7 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.012.0 — better
Further details — not scored
Size6 MB48 MB
Age rating4+4+
DeveloperZhikang Qin涛涛 聂

In-app purchases

None

PJConverter

No in-app purchases

1 purchases

Coordinate map, query location

Subscriptions1
  • Latitude and Longitude Map VIP3 Days trial$1.997 Days

Questions

Is PJConverter free?
PJConverter costs $0.99, with no in-app purchases.
Is Coordinate map, query location free?
Coordinate map, query location is free to download, with in-app purchases available.
Do PJConverter or Coordinate map, query location have ads?
Neither PJConverter nor Coordinate map, query location shows ads.
Which is updated more often, PJConverter or Coordinate map, query location?
PJConverter ships an update every 7 months, and Coordinate map, query location every 4 months. Most recently, PJConverter was updated on September 24, 2026 and Coordinate map, query location on October 2, 2026.

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