Deep Time Walk: Earth history

112 reviews
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About this app

Step back in time and experience Earth history like never before. The award-winning Deep Time Walk is a ground-breaking tool enabling anyone, anywhere to take a walking audio history of our planet.

• Walk 4.6km through 4.6 billion years of deep time, each metre = 1 million years.
• Learn about key concepts from Earth’s long evolution including how Earth formed, the evolution of life, plate tectonics, oxygenic photosynthesis, multicellular life, The Cambrian Explosion, vertebrates, plants, amphibians, mammals, dinosaurs and finally (in the last 20cm) humans.
• Understand our species common ancestral heritage and interconnectedness with all life.
• Comprehend the ecological impact of humans in the blink of a geological eye.
• Time-contextual glossary available to review key scientific concepts.
• Mobility-assist mode available for those unable to walk.
• What's Next portal for positive action (with organisations such as Earth Charter and

The dramatised audio is directed by Jeremy Mortimer (over 200 productions for BBC Radio) and designed by Jo Langton (a BBC Studio Manager), with voices provided by leading actors Paul Hilton (Garrow’s Law, The Bill, Silent Witness), Chipo Chung (Doctor Who, Sherlock, Into the Badlands) and Peter Marinker (Love Actually, Event Horizon, Judge Dredd). The script is written by Peter Oswald (ex-playwright in residence at Shakespeare Globe, London) and Dr Stephan Harding.

Produced by Deep Time Walk CIC, a not-for-profit social enterprise based in the UK.

** Platinum Award Winner of Best Mobile App Summer Awards - Best Designed Mobile App Interface **
Updated on
Oct 21, 2019

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

109 reviews
Sébastien Roux
December 22, 2021
I find the idea is absolutely fantastic that everyone gets to experience a Deep Time Walk just with their phone, simply by plugging in their headphones and walking, being guided through it with the engaging storytelling. So sad that it's based on podometer, it didn't recognize correctly when I'm walking. I walked 2 kilometers with my phone only detecting a few step... Looking forward for an update! How about based on GPS location? Cheers!
41 people found this review helpful
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Peter Janes
March 21, 2023
The audio performances are excellent. The app itself leaves something to be desired. Pauses after almost every audio segment but continues playing the ambient "walk" sounds; I'd walked almost a kilometre before realizing this (apparently I'm very patient!) and had to manually continue after 80% of the clips. Estimates of step length and/or count are way off too; I'm about 190cm tall and ended up walking almost 12km (even with fast-forwarding).
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Logan MacNeil
October 1, 2021
I was introduced to this app through my university professor for a Socionature class. We enjoyed a nature walk/hike as a group and followed along as the app traveled through time. The overall experience was very enjoyable and informative with the unique and engaging dialogue and delivery. The only issue I found using the app was it would sometimes pause and not start again until I pressed play, unsure if this was just user error or maybe a data issue but in the grand scheme of things it wasn’t too distracting. I found the voice acting to be very good and the storyline is full of fun examples of natural events and changes throughout earths timeline some I remembered but many were a learning experience for me. They did a great job of letting it sink in how little time humanity has been alive and how much we have achieved and the damage we’ve caused to achieve it in such a short time span, I would highly recommend installing and having it be a walking companion on your next outing.
42 people found this review helpful
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What's new

- New extended introductory sequence
- Expanded screens support
- Links to the new, tactile, Deep Time Cards