Comparison

4th Wall vs Digi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

4th Wall

Experience public art in augmented reality. Discover curated AR exhibitions at significant locations or place 3D artworks in your own environment. Engage with art that activates historical sites and inspires dialogue.

Highlights
  • Augmented reality public art exhibitions
  • Site-specific AR artworks
  • Place 3D dimensional drawings
  • Record and share AR creations
  • Explore historically significant sites
  • Sound integration for artworks
Features
Read full description

4th Wall is a free, augmented reality (AR) public art platform exploring inclusive creative expression. “Coordinates” hosts an ongoing series of curated, collaborative, site specific, public AR art exhibitions. Users are invited to be physically present at specific locations to experience AR artworks in situ. When users select the Coordinates feature, based on their location, they will be directed toward artworks – translated into AR-- created by artists that activate the historically, politically or culturally significant sites they have chosen. “Coordinates” aims to inspire thoughtful dialogue and expand our understanding of public art. By pressing the AR Artworks button, users can view, explore and place Nancy Baker Cahill’s dimensional drawings in the environment of their choice. Drawings can be rotated, scaled, placed and recorded by user. What’s New - A more streamlined experience for the user, with the removal of the hologram, studio experience and Desert X exhibition buttons and an expansion of the curated and site-specific “Coordinates” AR public art exhibitions platform. - Artworks may include sound so make sure to check for the new orange sound button at the top of the menu when observing an artwork on site. - The “Refresh” button updates the nearest artwork depending on the user’s location. - The “About” button directs users to the home page for 4thwallapp.org. Users can re-enter the app by tapping the text, “4th Wall” at the upper left hand corner of their screens. 4th Wall App is available on iPhone 6s iOS11 or above. Founding artist and Creative Director: Nancy Baker Cahill App Developer: Drive Studios ©nancybakercahill2019

About

Digi

Explore a fully reconstructed 3D Ancient Acropolis with a 360-degree virtual tour. Experience historical accuracy guided by archaeologists, complete with audio narration and vibrant ancient Greek life. Ideal for tourists and students seeking an immersive educational journey.

Highlights
  • 360-degree virtual tour
  • Fully reconstructed 3D Ancient Acropolis
  • Audio narration
  • Archaeologist-supervised historical accuracy
  • Ancient Greek life visualization
Features
Read full description

Acropolis 3D is a Virtual tour in Ancient Acropolis. With this App the user will have the opportunity to see in 360 Acropolis fully 3D Reconstructed as it was in Antiquity with colors, statues and ancient Greeks. The visual part comes together with an audio narration. The App has been supervised by a team of archaeologists having as leader Prof. Pan. Valavanis, a renowned Archaeologist (ex President of the Archaeological school of Athens), who has many scientific publications on Classical Greece and more specifically the Acropolis of Athens. Acropolis VR is an App suitable for tourists and students of all ages and belongs to a family of Apps coming soon in Heritage Culture and called DigiPast.

Screenshots

4th Wall4 screens
Digi4 screens

Verdict

The call

The clearest difference is review sentiment: 4th Wall at 67% against Digi's 0%. 4th Wall also leads on rating (4.5 vs 1.7) and in-app purchases (none vs 1). Digi's advantage is iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Digi sells 1 one-off in-app purchase. 4th Wall asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

4th Wall holds the better App Store score, 4.5 against 1.7. That said, the two scores are not equally well evidenced: 4th Wall has 42 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of 4th Wall's written reviews are positive against 0% of Digi's.

UpkeepUpdate frequency

4th Wall ships an update every 11 days, Digi every 20 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
4th Wall versus Digi: the parameters behind the verdict, then further details
Parameter4th WallDigi
PriceFreeFree
Rating4.5 (42 ratings) — better1.7 (3 ratings)
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings42 — better3
Update frequencyEvery 11 days — betterEvery 20 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size298 MB151 MB
Age rating12+4+
DeveloperNancy Baker Cahill Studio, IncMoptil Ltd

Customer experience

4th Wall

All ratings42 ratings
Positive85.7%
Neutral4.8%
Negative9.5%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Digi

All ratings3 ratings
Positive0.0%
Neutral33.3%
Negative66.7%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

4th Wall

No in-app purchases

1 purchases

Digi

One-time1
  • Digi-Past Acropolis Unlocked$11.99

Questions

Is 4th Wall free?
4th Wall is free to download, with no in-app purchases.
Is Digi free?
Digi is free to download, with in-app purchases available.
Which has better reviews, 4th Wall or Digi?
4th Wall is rated higher. 4th Wall averages 4.5 out of 5 from 42 ratings, while Digi averages 1.7 from 3 ratings.
Do 4th Wall or Digi have ads?
Neither 4th Wall nor Digi shows ads.
Which is updated more often, 4th Wall or Digi?
4th Wall ships an update every 11 days, and Digi every 20 months. Most recently, 4th Wall was updated on November 2, 2026 and Digi on November 3, 2026.

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