Comparison

Coordinates vs Simple TOPO

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

Head to head
About

Coordinates

This app is a versatile tool for converting and managing geographic coordinates. It supports numerous global formats and datums, allowing users to view, input, and save locations with rich details. Ideal for professionals and outdoor enthusiasts needing precise location data.

Highlights
  • Coordinate conversion (UTM, MGRS, Georef, etc.)
  • Batch conversion of multiple coordinates
  • Add notes, photos, and media to saved locations
  • Datum conversion with PROJ.4 support
  • Real-time navigation and tracking
  • Offline map tile downloads
  • Import/export GPX, GeoJSON, KML files
Features
Read full description

Coordinates is a powerful and user-friendly tool for anyone working with geographic locations — from travelers and surveyors to engineers and GIS professionals. Instantly view, convert, and manage coordinates in a wide range of global formats and datums, all within a clean and intuitive interface. Whether in the field or at the desk, Coordinates is your all-in-one solution for precise location work. # User-friendly Design Your current location is displayed at the intersection of two grey lines, with clear latitude and longitude readouts. You can manually set the location using map taps, coordinate input, or place search. Intuitive buttons give quick access to measurement tools, map layers, location bookmarking, shape drawing, and annotation — all from a clean, compact interface. # Various Coordinate Formats Supports formats like UTM, MGRS, Georef, and more alongside Longitude/Latitude. # Batch Converter Quickly convert multiple coordinates or files in one streamlined action. # Rich Object Details Add notes, photos, and media to any saved object — pins, shapes, or measurements — to keep your data organized and context-rich. Easily share your saved content across devices using backup and export tools. # Datum Conversion Transform coordinates using EPSG, ESRI, and IAU2000 references. Supports X/Y, geodetic, and projected systems. # PROJ.4 Calculator Convert coordinates between systems using the PROJ.4 library, with support for datum shifting and custom projections. # Navigation & Tracking Real-time bearing and distance updates are provided with a large coordinate readout, ideal for on-the-field usage. # Speedometer Track your current speed in real time. # Unit Converter Convert 40+ units (distance, pressure, radiation, etc.) # Signal Board Send big bold messages on-screen # Elevation Support Altitude data is available for land areas # Import / Export - .gpx .geojson .kml file supported # Distance, Bearing & Area Mark points or draw lines to measure distance, bearings, and area. # Offline Map Tiles Download tiles for offline use. Pick a city or define your own area. # Custom Map Tile Selector Choose from Apple Maps, OSM, or add your own tile server with {z}/{x}/{y} format. # Supported Input / Output # Latitude and Longitude DD/DM/DMS Standard UTM NATO UTM MGRS / USNG Georef QTH Locator / Maidenhead (WGS84) World Mercator (WGS84) Web Mercator Geohash what3words Global Area Reference System (GARS) Ordnance Survey National Grid [BNG] OSGB36 ISO 6709 Natural Area Code Irish Grid Reference / Coordinates Plus Code (Open Location Code) Mapcode Dutch Grid ECEF Indian Kalianpur 1975 Open Postcode Geohash-36 Guatemala GTM RT90 SWEREF99 Indian 1975 QND95 / Qatar National Grid IRENET95 / Irish Transverse Mercator KOSOVAREF01 HD 72 / EOV Kertau (RSO) / RSO Malaya Timbalai 1948 / RSO Borneo EST97 Estonian 1997 LKS92 / Latvia TM NZGD49 NZGD2000 CH1903/+ GGRS87 ETRS89-extended / LAEA Europe NTF (Paris) / Lambert zone II French DFCI Grid ARINC 424 FMS ARC1950 Pulkovo 1942 / SK42 PZ-90 H3 Placekey GDM2000 JGD2011 KUDAMS/KTM World Magnetic Model / WMM 2015v2 PRS92 / Philippines Search by name Photo metadata Proj.4 formats Street Address # Subscriptions # “Coordinates – GPS Converter” including most of its features, is completely FREE to use. You can subscribe to this application to remove ads Price may vary by location. Payment for subscriptions will be charged to your iTunes Account at confirmation of purchase Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscriptions may be managed by going to your iTunes Account Settings after purchase or by clicking the “Purchase / Manage Subscription. Auto-renewal may be turned off by going to Account Settings after purchase. Subscription cannot be cancelled during the active subscription period Privacy policy: https://mapnitude.com/privacy-policy Terms of use: https://mapnitude.com/terms-of-service

About

Simple TOPO

This app provides offline outdoor navigation with detailed topographic maps and route planning. It allows users to track their location, share itineraries, and find friends, ensuring safety and ease of use in remote areas.

Highlights
  • High-resolution USGS 24k Topographic charts
  • Easy Waypoint and Route creation
  • Buddy-tracking feature
  • Itinerary sharing for safety
  • Offline chart viewing
  • Real-time track recording
  • Point of Interest database
Features
Read full description

Simple TOPO is a powerful, yet easy-to-use outdoor navigation solution. No matter your outdoor pursuit Simple TOPO will get you there and back home safely – with nothing more than your iPhone or iPad. The free evaluation version displays standard satellite, road, and hybrid maps. An in-app subscription purchase of $2.99/mo or $29.99/yr includes USGS 24k Topo charts, navigational features, and frequent app upgrades. Key Features: • High-resolution USGS 24k Topographic charts • Easy one-touch Waypoint and Route creation. Pre-plan your routes at home or create them in the field with equal ease. Just touch the screen to create new waypoints and routes. • Find your friends outdoors. With our new Buddy-tracking feature, you can see and meet up with your friends while you’re out on the water. If you’re on your secret spot and don’t want to be seen, you can hide your location with the touch of a button. • Stay safe. Easily create and send an itinerary of your trip to a friend or family member. Your itinerary and location history can be forwarded to search and rescue personnel in case of an emergency. • Easy-to-use point-to-point navigation. The red heading bug on the large on-screen compass always directs you to the next point on your route. Navigation is as easy as pointing yourself at the heading bug to stay on course. • No Network. No Problem. Simple TOPO is designed so no internet connection is required to view your charts while in the field. You simply download in advance any charts you’ll need in the field with the touch of a button. • Record your tracks. Track your position in real-time and later view your track history. • Fully indexed point of interest (POI) database including weather, tides, currents, your buddies, and more. -------------------- Subscription prices: One year - $29.99 Monthly - $2.99 -Payment will be charged to your iTunes Account at confirmation of purchase. -Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current subscription period. -You will be charged for renewal within 24 hours prior to the end of the current period, for the same duration and at the current subscription rate for that product. -You can manage your subscriptions and turn off auto-renewal by going to your Account Settings in the Apple Settings app after purchase. -No cancellation of the current subscription is allowed during active subscription period. This does not affect your statutory rights. -Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. -We will be collecting information about your use of the app both when you are online and offline. To find out more please see our privacy policy. -------------------- By purchasing a subscription or downloading an app you agree that you have read and accept our Privacy Policy and Terms of Use. http://www.redskyengineering.com/terms-of-use/ http://www.redskyengineering.com/privacy-policy/ NOTE: Continued use of GPS running in the background can dramatically decrease battery life. Though Simple TOPO will function without a GPS as a chart reader, a GPS-enabled device is required for point-to-point navigation. Third-party Bluetooth GPS units are available to enable GPS for iOS devices such as WiFi-only iPads that do not include a GPS receiver. For offline use where no Internet connection is available, charts must be pre-cached while still on-line and connected, any charts downloaded while online will be available for offline use.

Screenshots

Coordinates4 screens
Simple TOPO4 screens

Verdict

The call

The clearest difference is review sentiment: Simple TOPO at 100% against Coordinates's 64%. Simple TOPO also leads on ads (none vs shown) and rating (5.0 vs 4.6). Coordinates's advantage is update cadence (monthly vs every 51 months) and ratings volume (6.7K vs 1). On price, in-app purchases, monetization model 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

Both are free to download. Coordinates sells 6 in-app purchases, starting at $1.99 per month and Simple TOPO sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Simple TOPO holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Coordinates has 6.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 64% of Coordinates's written reviews are positive against 100% of Simple TOPO's.

UpkeepUpdate frequency

Coordinates ships an update monthly, Simple TOPO every 51 months. The most recent releases landed on October 17, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 4 level
Coordinates versus Simple TOPO: the parameters behind the verdict, then further details
ParameterCoordinatesSimple TOPO
PriceFreeFree
Rating4.6 (6.7K ratings)5.0 (1 ratings) — better
Positive reviews63.6% of reviews100.0% of reviews — better
Number of ratings6.7K — better1
Update frequencyMonthly — betterEvery 51 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.67.0 — better
Further details — not scored
Size107 MB41 MB
Age rating4+4+
DeveloperMapnitude Company LimitedRed Sky Engineering, LLC

Customer experience

Coordinates

All ratings6,716 ratings
Positive91.6%
Neutral4.3%
Negative4.1%
Written reviews176 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

Simple TOPO

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Coordinates

Reported bugs

5 issues
  • Coordinate display issues (e.g., UTM showing incorrect hemisphere)
  • App crashing or freezing on launch
  • Inability to delete drawn lines or markers
  • Coordinate conversion not working as expected
  • Compatibility issues with newer iPhone models

Requested features

6 requests
  • Navigation and routing functionality
  • Support for What3Words coordinate system
  • Option to set preferred coordinate format as default
  • Ability to enter addresses or intersections to get coordinates
  • Add altitude information to saved locations
Show 1 more
  • Offline mode for areas without cellular coverage

Simple TOPO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Coordinates

Subscriptions6
  • Plus Upgrade$1.991 Month
  • Plus Upgrade$2.991 Month
  • Plus Upgrade$9.996 Months
Show 3 more
  • Plus Upgrade$15.996 Months
  • Plus Upgrade$17.991 Year
  • Plus Upgrade$28.991 Year
2 purchases

Simple TOPO

Subscriptions2
  • Monthly$2.991 Month
  • Simple Topo - 12 Month$29.991 Year

Questions

Is Coordinates free?
Coordinates is free to download, with in-app purchases available.
Is Simple TOPO free?
Simple TOPO is free to download, with in-app purchases available.
Which has better reviews, Coordinates or Simple TOPO?
Simple TOPO is rated higher. Coordinates averages 4.6 out of 5 from 6.7K ratings, while Simple TOPO averages 5.0 from 1 ratings.
Do Coordinates or Simple TOPO have ads?
Coordinates shows ads; Simple TOPO does not.
Which is updated more often, Coordinates or Simple TOPO?
Coordinates ships an update monthly, and Simple TOPO every 51 months. Most recently, Coordinates was updated on October 17, 2026 and Simple TOPO on September 18, 2026.

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