Best offline survival and outdoor apps for iPhone
Last updated 2 June 2026
For survival and the outdoors, the single feature that matters is that the app works with no signal, because that is exactly when you reach for it. So look for everything stored on the device, no ads in the way, and no account. On iPhone, Ferdinands Outdoor Companion (FOC) delivers: a full reference plus tools, all offline and free.
What 'offline' really means here
Some apps call themselves offline but still need a download per region or a login to unlock content. For survival, that is not good enough. The real test is Airplane Mode: open it with no connection and the whole reference and the tools should still work. FOC stores everything on the device, so they do.
Why FOC delivers
FOC keeps more than 40 articles across nine categories, plus a packing-list generator, a knot guide, and calculators, all on the device. It is free, with no ads, no in-app purchases, and no tracking, and reads in German, English, or Danish. Bring a map and compass too; an app is a companion, not a guarantee.
How it compares
| What to look for | FOC | Maps-only or online app |
|---|---|---|
| Full reference works with no signal | Yes | Varies |
| Tools work offline | Yes | Rare |
| Ads in the way | None | Often |
| Tracking | None | Common |
| Price | Free | Varies |
Frequently asked questions
What is the best offline survival app for iPhone?
One that stores everything on the device so it works with no signal, with no ads or account. Ferdinands Outdoor Companion (FOC) is free and fully offline.
How do I check an app works offline?
Turn on Airplane Mode and open it. The whole reference and tools should still work. FOC stores everything on the device.
Does FOC include tools, not just articles?
Yes. Alongside more than 40 articles it has a packing-list generator, a knot guide, and calculators, all offline.
Is FOC free?
Yes. FOC is free with no ads, no in-app purchases, and no tracking.
Related
Sources
This is general reference, not medical, safety, or professional advice. Skills like first aid and foraging carry real risk. In a real emergency, call your local emergency number (112 in the EU, 911 in the US).