AR apps: Overview of the best augmented reality ap­plic­a­tions for iOS and Android

Augmented reality (AR) merges reality and the virtual world. In the gaming industry, this modern tech­no­logy has already been in use for several years – until now, de­velopers have mainly con­cen­trated on mobile devices with Android or iOS. This is because smart­phones and tablets have powerful displays and feature built-in sensor tech­no­lo­gies such as cameras and GPS systems as standard. They provide the perfect basis for using augmented reality apps without the need for ad­di­tion­al equipment such as AR glasses.

However, although they have helped the tech­no­logy to achieve a break­through, AR games are by no means the only medium to use this tech­no­logy for mobile devices. Whether it’s a photo, shopping, learning or nav­ig­a­tion app, a travel guide or a res­taur­ant finder – almost every app category now also contains apps that rely on augmented reality. In the following sections, we’ll introduce you to some of the most exciting and useful AR apps for Android and iOS. We’ll highlight aspects such as usability, ap­plic­a­tion pos­sib­il­it­ies, price, and the fun factor that should always be at the forefront of AR games in par­tic­u­lar.

Games are un­doubtedly the classic example of augmented reality apps. In most AR games, geo­loc­al­isa­tion – fixing an object’s location (e.g. via GPS) – is of crucial im­port­ance. This is because it enables a perfect link between the game content and the real en­vir­on­ment.

When Pokémon Go was released in the summer of 2016, the AR app developed by the US de­vel­op­ment studio Niantic generated real hype. Since then, people have been combing the streets all over the globe to catch and train well-known fantasy creatures called Pokémon and compete against each other in virtual fights. The game uses GPS to determine the player’s location in real time and positions them on a virtual map based on the Open­Street­Map Google Maps al­tern­at­ive. Points of interest and other eye-catching objects from the real world are used to create the game’s digital world. This is because players can only access in-game resources – like healing potions for their virtual Pokémon – from certain real-world locations.

Since some Pokémon can only be caught in certain areas or even at certain times, players need to have a lot of patience, will­ing­ness to travel and per­sever­ance. The game is free to download because the augmented reality app is financed ex­clus­ively by optional in-app purchases (PokéCoins that can be exchanged for special items, skins or ac­cessor­ies for the player’s avatar). Pokémon Go is available both for iOS and for Android. The intended device must have a GPS receiver and at least two gigabytes of memory.

The Knight­fall AR app takes players into the world of the Knights Templar. This strategy game is the result of a col­lab­or­a­tion between the media company A&E Networks and the de­vel­op­ment companies Milkroom En­ter­tain­ment & Spectral Games. It immerses players in a world of medieval battles: In various scenarios, they must fight off enemy troops before they can break through the city walls and capture Christen­dom’s most sacred relic – the Holy Grail. The AR game is based on Google ARCore (Android) or Apple ARKit’s (iOS) tech­no­logy. Both the Android and iOS versions allow the augmented reality app to detect ho­ri­zont­al surfaces and place virtual objects on them.

The interface between the AR app and the real world is the mobile device’s camera. Knight­fall AR processes its images in real time to display the game world in a suitable position. The limited scope of the game can be overcome by the fact that it is com­pletely free of charge. The current versions of the game that are available for Android and iOS can be found in the usual stores. However, the focus of de­vel­op­ment seems to be on Apple devices, since new updates appear sooner for them.

The AR game Harry Potter: Wizards Unite was released in June 2019. It is the result of a col­lab­or­a­tion between WB Games, the video gaming arm of the US movie and tele­vi­sion company Warner Bros., and Niantic, the maker of Pokémon Go. Fans of the magical world of suc­cess­ful author J. K. Rowling get their money’s worth with this augmented reality app. In Harry Potter: Wizards Unite, magical items, people and animals have ac­ci­dent­ally landed in the real world and must be returned to the “wizarding world” by using magic spells. As with Pokémon Go, the player’s actual location (GPS) de­term­ines their avatar’s location in the world of the game. This means regular ex­cur­sions are a must for ambitious up-and-coming wizards and witches.

The search for objects, persons and animals that have dis­ap­peared from the magical world is of course not the only content of the AR app game: Defeating enemies and con­quer­ing fort­resses are also on the agenda – specific pro­fes­sions, brewing potions and con­stantly striving to improve your magical skills play an important role too. Harry Potter: Wizards Unite is available for iOS and Android and is initially free of charge. The game is financed ex­clus­ively by voluntary in-app purchases, which players can use to recharge consumed magic energy, for example, without having to wait.

Marketing personnel are con­stantly on the lookout for the latest trends to maximise their own e-commerce success. AR apps which focus on products, brands or sales platforms are becoming an in­creas­ingly important in­stru­ment.

With IKEA Place, the Swedish furniture company IKEA has launched a highly practical and free AR app at the end of 2017. It im­press­ively demon­strates how augmented reality can improve the shopping ex­per­i­ence. IKEA Place allows users to place various products available from IKEA – such as sofas, armchairs or coffee tables – virtually and true to scale in a pho­to­graph of their own home. In this way, customers can quickly get an idea of the size of their chosen piece of furniture without having to rely on their ima­gin­a­tion. The only re­quire­ment is a suf­fi­ciently il­lu­min­ated, vacant space that can be easily captured by the augmented reality app using a camera scan.

IKEA Place also has a search function that scans existing pieces of furniture and compares them with suitable al­tern­at­ives in the IKEA range. In addition, there’s a share-your-place function so the AR-optimised living space can be shared on social media apps such as WhatsApp or Instagram. The AR app can be used with a variety of tablets and smart­phones – it is available as a version for Android devices (from 7.0) or also as an app for iOS (from 11.0). However, detecting surfaces and dis­play­ing virtual objects properly does not work equally well on all devices.

The Augment augmented reality app has already been down­loaded over 2.5 million times – and with good reason: The ap­plic­a­tion from the Paris-based company of the same name is aimed at all online retailers who want to make their product range virtually “testable” but do not have the necessary technical resources and funds to develop and offer an in­de­pend­ent AR app. Augment enables them to generate 3D models of their own products (from 2D templates) and to list them in a database. If they want to present their products later, the virtual coun­ter­parts offer the perfect basis for this. However, this is not free of charge: The costs for the "BUSINESS" plans available start at approx. £8 (€9) per month.

If you already have your own app for online sales, you can also integrate the Augment AR tech­no­logy into this app thanks to the em­bed­dable SDK (Software De­vel­op­ment Kit). Buyers can then view the 3D models directly in the shop. In addition, the virtual product range can be listed in the 3D hub. This means it can also be found and tested using Augment’s search function – similar to IKEA Place. However, both options require you to purchase one of the more expensive “ECOMMERCE” plans, which start at a monthly cost of approx. £75 (€89). Anyone who wants to take a look at the augmented reality app, which is free of charge in and of itself, can find the versions for iOS in the re­spect­ive store.

Once the matching Packset has been found, it can be ordered im­me­di­ately with the AR app – including the matching shipping label. The DHL Packset app itself is also com­pletely free of charge, but customers currently have to make do only with a version for iOS (from 11.3), since there is no Android version of the app (at least for the moment). The augmented reality app does not process any personal data – although a Facebook no­ti­fic­a­tion will be sent if the app is installed via a Facebook advert.

For years now, de­velopers have ap­pre­ci­ated the value of software that imparts knowledge and helps students to learn. Thanks to augmented reality, however, it is now even easier to enable students to grasp the learning content and to make the learning process in­ter­est­ing and mo­tiv­at­ing.

Math­em­at­ics can be so difficult for many people to un­der­stand, above all because it requires a great deal of the­or­et­ic­al knowledge and abstract thinking. This is where the GeoGebra 3D graphical cal­cu­lat­or augmented reality app comes in: by literally bringing math­em­at­ic­al content to life using augmented reality. For example, it allows function graphs and surfaces to be drawn in three di­men­sions, or any geometric shapes such as spheres, bodies or planes to be created and displayed virtually. It is not necessary to search for suitable surfaces to place the re­spect­ive math­em­at­ic­al objects on; they can also be viewed simply floating freely in the air.

Also, this AR app does not neglect the learning factor: Anyone who wants to boost their math­em­at­ic­al knowledge or use the GeoGebra 3D graphical cal­cu­lat­or for teaching purposes will find various learning and teaching materials in the app. Like the app itself, these are available to all users free of charge – the only re­quire­ment is non-com­mer­cial use. All cal­cu­lated results can be saved and shared with friends or teachers, in­cid­ent­ally.

Anyone who is in­ter­ested can find the math­em­at­ics app both in the AppStore (for tablets and smart­phones with iOS) and in the Google Play Store (for tablets and smart­phones with Android).

Mondly can be used for learning over 30 languages – including French, Italian, German and Spanish. The AR app from the Romanian de­vel­op­ment company ATi Studios is aimed at beginners who want to learn a foreign language from scratch as well as advanced learners who want to perfect their existing language skills. Various modes create variety in daily vocab­u­lary training and grammar. For example, the daily standard lessons are sup­ple­men­ted by weekly quizzes and monthly tasks to keep mo­tiv­a­tion high in the long term. In addition, there are language features such as an in­teg­rated chatbot and a virtual language teacher, with which users can use a mi­cro­phone converse on everyday matters in their desired target languages.

However, virtual con­ver­sa­tion partners are not the only thing the augmented reality app can add to the real world. In order to make the learning process even more visual, other objects are also placed in position in suitable situ­ations. For example, Mondly displays animals or objects when they are the subject of a guided con­ver­sa­tion or exercise. This increases the like­li­hood that the new material learned will be re­membered as it is also visually memorised. The app is available for Android and iOS can be used free of charge in principle, but some content is only available after signing up for the premium sub­scrip­tion which must be paid for. Users can choose between approx. £8 (€9.99) per month and approx. £43(€47.99) for a 12-month sub­scrip­tion.

SketchAR is intended for those who have always wanted to learn how to draw. The augmented reality app, which was developed by a Lithuani­an start-up, uses the cap­ab­il­it­ies of augmented reality by dis­play­ing drawings virtually on paper or walls. A huge selection of subjects are available for this purpose. Once selected, all that is needed is to align the subject on the desired surface. In order to make the drawing process as easy as possible for the user, in­di­vidu­al parts of the picture can be faded in one after the other with many templates. This means the user can complete their own work of art step by step and at their own pace.

SketchAR has a virtual helper to provide users with advice. Thanks to machine learning, this helper con­tinu­ously gathers and processes in­form­a­tion about the in­di­vidu­al’s progress, so that per­son­al­ised tips can be provided at any time. The AR app is available for Android and iOS and can be used free of charge on both operating systems. However, some subjects and lessons can only be accessed by in-app purchases – if you do not buy them then they are still displayed but cannot be selected.

The tourist industry has also benefited from augmented reality apps in recent years. These make it easier for people to explore other cities and foreign countries – es­pe­cially when potential trav­el­lers do not speak the local language or know their way around.

Most people already know about Google Translate as the trans­la­tion service provided by Google. Since 2010, the service has also been available as an app for iOS and Android devices. Over the years, Google has con­tinu­ously added to the range of functions: Now, the ap­plic­a­tion doesn’t only translate typed text (in more than 100 languages) and spoken words (in more than 30 languages), but also has an AR instant translate feature (in more than 35 languages). This feature makes it possible for text to be imaged using the camera of the par­tic­u­lar mobile device and replaced in real time by matching trans­la­tions. The AR app is free – ir­re­spect­ive of the languages used for trans­la­tion.

With the augmented reality app Virtlo, the Armenian software company e-Works LLC has developed a solution for exploring real en­vir­on­ments quickly and easily. For example, Virtlo users can have locations of points of interest, res­taur­ants or hotels in their vicinity shown on their own smart­phone display, and then the AR app overlays cor­res­pond­ing virtual labels including the distance to these locations. This method can also be used to find out the closest stations for public transport. The free app is ex­clus­ively available for iOS and is based on open source data which is updated every day by millions of col­lab­or­at­ing vo­lun­teers.