5 must-have iPhone apps

Apple iPhone 16 Pro Max REVIEW
The iPhone 16 Pro Max (Image credit: Future / Lance Ulanoff)

There’s an almost overwhelming number of apps available on the App Store, and a huge number of them are high-quality options that could genuinely benefit you. This is great, but it also makes it tricky to decide which apps to actually get.

Ultimately, there’s no one-size-fits-all answer to this, but below, we’ve listed five apps that we consider must-haves.

These cover a range of categories, from podcasts to maps and beyond, and for our money, they’re among the very best in their fields.

5 must-have iPhone apps - from mapping to photography and beyond - YouTube 5 must-have iPhone apps - from mapping to photography and beyond - YouTube
Watch On

1. Pocket Casts

Screenshots of the Pocket Casts app

(Image credit: Automattic / TechRadar)

While Apple Podcasts is quite possibly the most popular way to consume podcasts on an iPhone, it’s arguably not the best, with some third-party apps having features or designs that might appeal to you more, and Pocket Casts is a prime example of this.

This app has been available for many years, and it has got better and better over that time, pairing a bright, attractive interface with a wealth of features, like the ability to trim silence, change the playback speed, boost the volume of voice relative to background noise, use a sleep timer, and much more.

You can also use it with AirPlay, Chromecast, Sonos, and CarPlay, so you’re not limited to listening on your iPhone, and there’s an Android app too, so you can easily keep listening if you ever ditch Apple – which isn’t true of all the best podcast players on the iPhone.

2. Halide Mark II

Screenshots of the Halide Mark II app

(Image credit: Lux Optics Incorporated / TechRadar)

Halide Mark II isn’t a must-have app for everyone, but it is a must-have for those who want to go beyond just pointing and shooting with their smartphone camera.

It includes powerful tools like a Focus Loupe and Focus Peaking, the ability to skip Apple’s image processing with its Process Zero mode, and full manual control.

You can also use it to take macro shots even if your iPhone doesn’t have a macro mode, and there are widgets, histograms, access to technical readouts of your phone’s camera hardware, and support for shooting in ProRAW, RAW, HEIC or JPG.

You can also edit photos in-app, and if you have a phone in the iPhone 16 series then you can set the Camera Control button to launch Halide, while a swipe across the key lets you adjust the focus and exposure.

So whether you want a powerful replacement for the default camera app or plan to use Halide Mark II alongside Apple’s offering, this is well worth having if you’re a budding photographer. Note however that after a free trial the app requires either a subscription or a pricey one-time purchase.

3. Twilio Authy

Three screenshots of Authy

(Image credit: Authy Inc.)

If you exist online in 2024 then it’s vital to be using two-factor authentication wherever it’s offered, and ideally you should be using an app for that (or if you want to be even more secure, a physical security key), as SMS-based authentication is less secure.

So while this isn’t an exciting category of app, we do consider an authenticator a must-have, and of those available Twilio Authy is one of the absolute best.

Beyond the basics of an authenticator app it offers secure, encrypted cloud backups, so you won’t lose access to your accounts if you lose access to the phone you’ve installed Twilio Authy on.

And you’re not limited to running Authy on just one device either – if you add a verification token to the app on one device, then it will sync with the Authy app on any of your other devices. This stuff isn’t true of all authenticators.

4. Citymapper

Three screenshots of Citymapper

(Image credit: Citymapper Limited / TechRadar)

Citymapper is unlikely to completely replace Google Maps or Apple Maps as your sole mapping application, but when you’re in a city that’s included in this app – as many major cities across the world are – then Citymapper could potentially serve you better.

It lets you plan routes, provides step-by-step directions, includes live wait times and ETAs for buses, trains, and ferries, lets you follow buses and trains in real time as they approach you, can give you an alert when it’s time to get off a bus or train, and can help you compare cab fares and find nearby e-scooters, among many other features.

In all, Citymapper is a truly comprehensive solution for getting around cities, it’s just a shame that it’s limited to cities, and not all of them at that. But if you live in an included city or even ever travel to one, it’s an impressive upgrade on the mapping experiences provided by Apple and Google.

5. ChatGPT

Three screenshots of ChatGPT

(Image credit: OpenAI / TechRadar)

If you want to make use of AI on your phone, then ChatGPT is one of the best options for that. This AI chatbot is free to use (though you can pay to get faster response times and priority access to new features), and you can choose to either speak or type to it.

However you choose to interact with it, you’ll find ChatGPT can provide detailed answers to questions, help you brainstorm, come up with recipes when you have limited ingredients, give you suggestions and ideas, and a whole lot more.

If you have an iPhone that supports Apple Intelligence then the standalone ChatGPT might soon be less essential, as with iOS 18.2 Apple is baking ChatGPT functionality into Siri, but there will probably still be a place for the app, and for all those iPhones that don’t have Apple Intelligence this really is a must-have.

You might also like

TOPICS

James is a freelance phones, tablets and wearables writer and sub-editor at TechRadar. He has a love for everything ‘smart’, from watches to lights, and can often be found arguing with AI assistants or drowning in the latest apps. James also contributes to 3G.co.uk, 4G.co.uk and 5G.co.uk and has written for T3, Digital Camera World, Clarity Media and others, with work on the web, in print and on TV.

Read more
iPad Pro 12.9 2021
Get an iPad for Christmas? Here are 5 must-download apps to get you started
The Gentler Streak app running on an Apple Watch Series 10.
50 best Apple Watch apps: From health apps to games and everything in between
Three phones on a green background showing Gentler Streak, Headway and The Way
9 unsung iOS and Android apps we couldn't live without in 2024
Apple Watch Series 10
Just got an Apple Watch for Christmas? Here are five apps you should download right away
Apple Intelligence
The 5 best Apple Intelligence features to try right now on your new iPhone, iPad, or Mac
Three people looking at a laptop display
Best alternative email app for iOS of 2025
Latest in iPhone
Apple iPhone 16 Pro Max REVIEW
The latest batch of leaked iPhone 17 dummy units appear to show where glass meets metal on the new designs
Apple iPhone 16e REVIEW
The iPhone 16e’s 5G performance seemingly has the iPhone 16’s beat
Tim Cook
The EU wants Apple to open iOS to competitors and this is the mother of all bad ideas
Apple iPhone 16 Review
iPhone 18 series: the 5 biggest rumors so far, from camera upgrades to new display tech
Samsung Galaxy Z Fold 6
New rumors predict a foldable iPhone will launch next year – and cost almost twice as much as the iPhone 16 Pro Max
iPad mini 2021
Huawei might have beaten Apple to the folding phone finish line by creating a foldable 'iPad mini'
Latest in Features
Google Gemini Canvas
Is Gemini Canvas better than ChatGPT Canvas? I tested out both AI writing tools to find out which is king
Apple Watch Ultra 2
7 hidden features on your Apple Watch you should start using right now
Cassian looking at someone off-camera from a TIE fighter cockpit in Andor season 2
3 new Disney+ TV shows I can't wait to stream in April with over 90% on Rotten Tomatoes
The group stand together with Taissa in Yellowjackets season 3
Yellowjackets season 3 is the #2 show on Paramount+ – here are 3 more thrilling dramas to survive next
A screenshot of Hazel from South of Midnight holding a glowing bottle
South of Midnight's audio team shed light on the game's unique approach: 'Games tend to follow certain formulas, and this wasn’t one of them'
ChatGPT and Gemini Deep Research
I pitted ChatGPT Deep Research against Gemini Deep Research - here's how Google's free tool compares to OpenAI's paid offering