VaneThe Best Compass App for iPhone: What to Look For
We read the most recent App Store reviews of 21 compass, altimeter, speedometer and GPS apps. With compasses, two things decide the rating: whether the needle can be trusted, and whether ads get in the way. Here is what to look for, and how Vane answers each point.
Updated 23 October 2026
What people complain about
We collected the 2,300 most recent App Store reviews of 21 compass, altimeter, speedometer and GPS apps in August 2026, and compared the share of reviews at three stars or below with how each app makes its money.
| Apps in the sample | Reviews at 3 stars or below |
|---|---|
| Compass apps with ads | 51% and 56% |
| Compass app without ads | 17% |
| All apps with ads (10 apps) | About 43% on average |
| All apps without ads (8 apps) | About 20% on average |
Most recent reviews per app, up to 150, from the App Store in August 2026. A small sample for compasses alone, but the pattern holds across every kind of app we read.
The other big complaint is accuracy, and with compasses it is mostly calibration: in one ad-supported compass app, 11 of its 41 recent low-star reviews were about calibrating alone. People do not mind calibrating once. They mind an app that keeps asking, or that gives a confident wrong heading without saying anything.
1. True north and magnetic north, clearly labelled
A magnetic compass points to magnetic north; maps, GPS bearings and most directions you are given use true north. The gap between them, the declination, changes with place and year and is more than 10° in parts of North America. A good app offers both, says which one it is showing, and works out the declination for your position. Vane does, and keeps the last declination so true north still works underground. Our guide to iPhone compass accuracy explains the difference.
2. Honest about when it is wrong
Every phone compass is thrown off by car interiors, steel desks, speakers and magnetic cases and mounts. That is physics, not a bug. What separates apps is whether they tell you. Vane labels every reading with the sensor it came from, so you know whether the direction is the magnetometer's heading or your direction of travel from GPS.
3. Nothing covering the needle
The table above is the clearest finding in our data: apps with ads draw roughly twice the share of unhappy reviews. A compass is read in a glance, often outdoors and in a hurry. Vane has no ads, in the free version or anywhere else.
4. Bearings you can follow
Knowing where north is helps; holding a course helps more. Look for a bearing lock, which marks the direction you want to walk and shows how far off it you are, and an arrow to a saved place, such as your car, a trailhead or a mooring. Vane does both, and shows the sunrise and sunset bearings for where you are.
5. Works with no signal
A compass is most useful exactly where there is no mobile data: in the hills, at sea, abroad with roaming off. The magnetometer and GPS need no connection; the map is usually what fails. Vane's map is built into the app, so your position, marks and track show up with no bars at all. See does GPS work without internet?
6. Your position, in the format you need
Search and rescue, hunting and the military use UTM or MGRS; boats and aircraft use degrees and minutes; maps and messages use decimal degrees. A good compass app shows your position in the format the person you are talking to needs. Vane shows decimal, degrees and minutes, DMS, UTM and MGRS. Our coordinate converter explains each.
7. On your wrist, and private
On a walk the easiest compass to glance at is on a watch. Vane's Apple Watch app shows heading, speed and altitude. And a compass has no reason to know who you are: Vane has no account, no ads and no tracking.
Try it before you install anything
Our free online compass runs in your phone's browser and shows your heading in seconds. When you want true north, a bearing lock, a map with no signal and a watch, that is Vane.
Common questions
What is the best compass app for iPhone?
Look for one that shows true north as well as magnetic, tells you when the heading cannot be trusted, works offline, has no ads, and can hold a bearing or point you at a place. Vane was built around that list, and adds a speedometer, barometric altimeter and spirit level, free with no ads.
Is the iPhone compass accurate?
To within a few degrees when it is calibrated and away from metal, magnets and electronics. Most complaints about compass apps are really about interference and calibration, so a good app tells you when the reading is disturbed.
Does a compass app need internet?
No. The magnetometer needs no data, and true north needs only your position, which GPS gives without a connection. Only an online map needs data.
Should a compass app show true or magnetic north?
Both, and you should know which you are using. Maps and GPS bearings use true north; a hand compass and many charts use magnetic. The difference, the declination, is more than 10 degrees in parts of North America and elsewhere.