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Cachly Help v6.0

Welcome to the Cachly Help Wiki. A wiki is a collection of pages edited by ordinary users to build a library of useful knowledge that's easy to update. This wiki is used as the help resource for the Cachly Geocaching iOS app. The current released version is 6.0.

Check out [What's new in V6] for a quick look at what's new! It is a long list.

If you spot corrections or improvements you think would make this wiki better, post them on the Support Forums: We welcome your suggestions.

Getting Started with Cachly

Go through this Getting Started tutorial if you are new to Cachly or just getting started with Geocaching.

If your device supports Force Touch, you can use it on the Cachly icon before launching Cachly and go directly to Search, View Profile, or History.

Cachly has 5 major tabs at the bottom of the screen, Live, Lists, Logs, Trackables, and More. Usage of each of these tabs is described in the sections below.

Live Usage

Lists: Offline and Online


The Logs Tab shows the logging you have done. The list is in date order.

From this tab you can also edit a log or delete a log or add images to it.


The Trackables Tab shows details of your Trackables Inventory and Owned Trackables.

Scanning a trackable

Cachly provides a feature for scanning the codes on trackables and logging them. Go to the Trackables tab and look for the trackable icon in the upper right. Note: In order to use this feature your device must be running operation system version iOS 13 or greater.


Tap the trackable icon to start scanning. You will see a camera view with a scan area in the middle which is where you want to align the code on your trackable. The zoom bar can be used to zoom in the view for cases when your trackable has very tiny font.


As you position the trackable code in the scan area, a green box will highlight the area where the code is thought to be and a provisional scan will be made. At the bottom of the screen, you can see the code that was scanned. Usually, it will be correct but it pays to check and rescan if there is a problem. The image below has the TB code obfuscated to avoid spurious logging. Normally, you would see the code of your TB in those two areas.

Tapping View xxxxxx will show you information about the trackable. Tapping Create Log will take you to the Log Trackable screen with the scanned code filled in. From there, you can complete the logging and choose a log type. The Save Discover Log will add create a Discovered log for the trackable and save it your list of Pending Trackable Logs. This makes it easy to scan a number of trackables and then go to the More tab and log them later.


Sometimes the scan picks up some other word on the tag you don't want. Just hit Cancel and try again. If the tag code is too damaged or faint to be scanned, you can still log it manually from the Log Trackable screen.

Note: If your device is not running iOS 13 or greater, you will see a screen similar to the below where a QR code can be scanned not a TB code.

Scanner pre ios13.jpg

More Tab

The More Tab offers access to a wide variety of additional Cachly features and settings.

The Rest

Proximity Alerts

Proximity alert is a way to have Cachly notify you when you get within a specified distance of a cache or target. Proximity alerts can be on or off so if you don't want to use it, you don't have to. If it is on, you can specify a proximity alert for a distance around either your current location or the target of the current navigation.

Using your own location is more common since you typically want to know when you get within a certain distance of a cache. When the target cache comes within your set distance, a triple beep will sound (or vibration if you have sound off) and an iOS notification will show. You can also optionally choose to have other non-target caches entering your radius generate a notification as you pass them. Tap any notification to view the cache in Cachly.

The proximity indicator and control is on the map screen as seen below (red check mark means alerting is on).


Tapping the icon will take you to a screen where you can set the proximity distance and specify whether the distance is from "Current User Location" or "Current Target". You can also enable/disable "Notify For All Caches" here. Settings related to notification alerting are shown at the bottom. You may have to change notification settings for Cachly in Settings to Allow Notifications and you may need to adjust when Cachly can get your location though this is likely already allowed if you are using Cachly for caching.

Note: Long pressing on the proximity alert icon will toggle the feature on/off.


An actual proximity alert for the Target looks like this:


There are two cases where you can use it: offline lists and on the navigate to cache screen.

Offline Lists

Alerting works when viewing your full list. If you have the "Notify For All Caches" option turned on, it will notify you about other caches in that offline list if you get within your specified distance of them. It will NOT notify on caches not in the offline list.

Navigate to cache from any interface

If you are viewing the live tab, or even an online list you can use the navigate to cache option and it will allow proximity alerting. Or you could save them all to an offline list if data availability might be an issue and work offline.


Q: What happens if I alert for a cache and then move away from it again? Will it alert again if I return to the area where it is?
A: It will initially alert and not alert again until you move away at least 2x your set proximity distance.
Q:What happens in an offline list if I view the map and turn on proximity alerting? 
A: Your radius circle will show and alerts will fire for all caches within that radius.
Q: What happens if I put a huge notification radius? 
A: You will get notified about all caches within the radius.
Q: Can I turn off the alert sound?
A: You can use the iOS controls for notifications or silence your phone to allow vibrations.
Q: Will proximity alerting work if I put the phone in my pocket?
A: Yes, Cachly will still alert you since it will be running in the background. If you are using iOS 12 or below this will require "Always" location access. If you are using an Apple Watch and have locked your phone, the notification will be delivered to the watch instead.

How to hide a cache with Cachly

Hiding a cache is something you get better at as you find more examples to guide you and gain experience. Think seriously about finding 20 or more hides before you contemplate putting out one of your own. Even more finds is better because there is such variety out there and you want yours to be good too.

Cachly has a lot of features that can aid you when you feel you are ready.

Find a location

The first thing you must do when choosing a hide location is to be sure you are not within 528 feet/161 meters of any other physical cache. Caches with no physical component like virtuals, earth caches and lab caches are no issue. However, the final location of a puzzle cache, multi cache or letterbox hybrid can interfere with your desired location. Be prepared to sometimes collide with one of these when you try to create your listing. The reviewer will tell you if you have a conflict and you will need to choose another spot.

Cachly's Show Cache Radius setting will display a standard radius circle around all caches with a known location to help you avoid them. As long as you are outside the radius circle of any nearby visible caches, your location may be fine. Radius circles are not shown for Mystery caches unless you have set corrected coordinates. Nor are they shown for multi caches and letterboxes unless they have corrected coordinates.

Finding a good location can be done in several ways depending on your area of interest and where you are. Let's look at them:

I'm sitting at home prospecting for likely places

Use Cachly Live View with Radius Circles on. You probably have some general idea of where you want to place it. Using a mixture of Satellite View (and Street View if there are streets around), you can look around and get a sense of the area and places you might put a cache that do not collide with existing hides. If the area is fairly busy, try dropping a pin and use "Create Offline Geocache" to save the location to an offline list of prospective places. If the user-created cache is traditional type, it will show a radius circle for you. You can drop several at likely spots before venturing out to see what's in the real world. Then look at the next section.

I'm out where I want to place it

Use the Cachly Live View, if you have data coverage. If not, grab all the caches you can see around the area of interest to an offline list before setting out. Now with radius circles on, you can walk around and explore likely hide locations keeping clear of the existing cache radius circles. If you want, you can turn on proximity distance for Current User Location and set a distance of 528'/161m to better see the interactions with existing caches.

What you see there may influence the type of container and hide that would work well. Maybe you already know and have a container prepared. Before you leave the location, get the best coordinates you can. See below section on Getting Good Coordinates. Place the container if you have one. Then head home to create your listing and confirm that your location indeed has no conflicts.

Influences of hide areas

In the wilds: If your hide is out in the wilderness, Street View won't help you. Satellite view might but if the area is under tree cover, no help there either. Unless you are sending the user bushwhacking into the wilds, Cachly's Offline maps showing trails can help you see possible spots along the trail route that users can easily reach while hiking. You will need to visit the area in person to scout your hide location.

In urban areas: This includes countryside where roads go. Satellite view and Street View can be helpful when scouting out possible hide locations and styles. Using Cachly Map view, long press to drop a location pin and drag it to exactly where you want it. Actions on the pin include "Navigate to Location". If you do that, then the Street View icon can let you look around for suitability: Guard rails, bushes, places for visitors to pull off and park while searching, etc. To make your candidate spot a bit more permanent, you can Create an Offline Cache that you can use to keep notes in, navigate to, etc. while prepping for the real cache.

Getting Good Coordinates

Everyone likes accurate coordinates. The reality is that civilian GPS accuracy is at best only to within 16'/4.9m under open sky. In 2015, Stanford ran experiments with 1,700 people around the world measuring smartphone GPS accuracy. Stanford Study The mean accuracy turned out to be exactly 4.9m/16' under clear, open sky. In urban areas, buildings start to interfere and their study data gave an accuracy estimation formula in meters of "Building height (floors) + 5". So no buildings = 5 meters (close to 4.9). Surrounded by 3 story buildings, figure around 8 meter (26 feet) accuracy. Other factors like tree cover and nearby power lines can degrade your location accuracy measurement. Tree cover can double the error so 10 meters instead of 5.

What does all this mean to you? First you need to do the best job you can getting coordinates but recognize the limitations of the system and 15-30' might be the best your phone can do depending on location. So your phone might be off by 15' from the true location and the finder's phone might be off 15' in some other direction. This is why the mantra "Get within 30' and put your phone away and start looking is often chanted.

Still, you should try for the best coordinates you can. If you imagine that your first reading is off by 4' one way, another reading is off by 5' in a different direction, a 3rd is almost correct and you average these readings, you will be have +4, -5, 0 giving a sum of 1 and divided by 3, almost spot on. So stand where you will place the cache and tap your location on the Cachly map and from the ... actions do "Save Location" and name it Reading 1. Walk away a little bit and walk back. Do it again for Reading 2. Collect them and you may start to see a pattern. Many of the latitude numbers are close to the same value. Similarly for the longitude ones. If you toss out any wildly different ones and average what is left, you probably have a fairly good set of coordinates. You can do the math at home or in the field. Save the best coordinates in your Personal note or Notes app.

Look around for objects in the vicinity that you can line up the hide location with. Is it parallel to the Speed limit painted on the pavement? Is it lined up with the edge of some building? etc. Note these alignments. Later with a Satellite view, you can see if they line up pretty well with your averaged location. Remember, some cachers go by satellite view when guessing where the cache might be if their actual location is drifting around.

In urban canyons where buildings can interfere, smartphones can use wifi data combined with GPS to improve the overall accuracy reported so having wifi on can help. In areas like deep forest cover or urban settings with lots of muggles, you may want to consider a generous hint to make it a bit easier for seekers. Collect the hint data for use in your listing.

Create your listing

New geocache listings can only be done on the website - Play -> Hide a geocache. Fill out the form information. You may want to only fill out the bare minimum until you are absolutely certain your chosen location has no collisions with other caches. Put in your "good coordinates". Sanity check them. View the coordinates you just typed in on Google Maps. This will help spot typos, digit transposition, wrong hemisphere, etc. Then submit to your reviewer with a reviewer note that says: "DO NOT PUBLISH; Location check".

If there is a collision, the reviewer will tell you so and you can modify the location and try again. At this point, you have a GC code for your cache and can see it on Cachly maps in it's unpublished state. This can be handy for finding a better location. When you get a good location, finish all the details of your listing like a good description, correct Difficulty/Terrain ratings, hint, etc.

Resubmit to your reviewer indicating the cache is ready to go, you have deployed your container and provide whatever other info they want (e.g. how hidden, ...). Thank them for their volunteer work.

Note: Do not assume the reviewer will take awhile and you can buzz out and put the container in place while waiting for them to review and publish. Don't be that person who arrives to find people already looking for your cache which is not there yet.


  • Set corrected coordinates on Challenge Mystery caches and they will then show a radius circle.
  • While you can store working info in a User Created Offline cache, none of this can be transferred (except manually) to your actual cache listing. To avoid confusion, delete it once the real cache entry exists (even in unpublished state)
  • User created offline caches only show in the offline list where they reside. Unpublished caches can show in online or offline views.
  • Take photos of the hide area and the hide itself. Save them in Cachly private photos associated with the cache. These can come in handy if users have questions of you later on.
  • Especially for puzzle caches, consider having a friend "beta test" your puzzle to see if the difficulty rating is right, if the corrected coordinates are right and the cache is findable. Better to find out before the complaints come in.
  • If you are using a checker like Certitude, be sure to include the checker link in your Description text.
  • If this is a Challenge cache, you must have a Project GC checker setup or the reviewer will reject it. Also you must meet the challenge yourself and supply the reviewer with some number of local people who qualify (commonly 10 but some reviewers want more)

Apple Watch

Learn how the Apple Watch can be used for geocaching.

UK OS Maps

Learn how to setup UK OS Maps using a Bing Maps API Key.

Additional Support