onIMT vs Hyper Edohaku
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
onIMT
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• What Is “onIMT”? This Sound Layer application is designed for your ears to enjoy the Intermediatheque. Various audio contents are produced according to the Intermediatheque’s exhibition space. Each visitor is free to choose his own theme (layer). All you have to do is put on your earphones, select your layer and press “on.” Based on your location, audio contents will be played automatically. Your ears can then enjoy a new museum experience, without your having to look at the application interface anymore. • What Is a Sound Layer? Sound Layer is an innovative concept and technology developing a multi-layered experience of augmented reality based on sound. Whereas several contents cannot coexist in real space, with the concept of Sound Layer, various audio contents are accumulated on as many layers in a single location, making it possible for each visitor to select what he wants to listen to at a given time on a given location. Furthermore, by introducing a specific system supported by the latest technology, it becomes possible to play audio contents automatically based on location information provided by beacons positioned throughout the museum, without having to manipulate any buttons to switch from one content to the other. The University Museum, the University of Tokyo in cooperation with THD Inc. established the development of the Sound Layer application “onIMT” as a key project transforming our perception of the world through sound, and explores the possibilities of Sound Layer within museums, with the Intermediatheque as a platform for experimentation. The Sound Layer application for museums is an original application jointly developed by the University Museum, the University of Tokyo (UMUT) and THD Inc. “onIMT” is a content application that implements the Sound Layer technology within the Intermediatheque. • What Is the Intermediatheque? The Intermediatheque is an admission-free museum operated by Japan Post Co. Ltd. and the University Museum, the University of Tokyo. This interdisciplinary facility is devoted to cultural experimentation through the fusion of every means of expression. It is located in the former Tokyo Central Post Office, a historical building representative of Showa modernism architecture. One of the Intermediatheque’s highlights is the original design concept of its permanent exhibition of scientific and cultural heritage accumulated by the University of Tokyo since its foundation in 1877. Special exhibitions and events also present the fruits of contemporary scientific research and artistic expression in harmony with the permanent exhibition.
Hyper Edohaku
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The Tokyo Metropolitan Edo-Tokyo Museum’s smartphone app is finally here. What creativities and delights did the lives of Edo’s townspeople have? Journey into the hustle and bustle of Edo and discover originalities that can lead to insights for the present-day! - Find Them: One hundred from the Edo-Tokyo Museum Collection Ryōgoku-Hirokōji is Edo’s entertainment district, which the app has had recreated in 3D based on the Edo-Tokyo Museum’s model of the area to the west of Ryōgokubashi Bridge. This augmented rendition includes the Ryōgokubashi Bridge in the summer, squares on both ends of the Bridge, and the Sumida River. Scattered among this 3D rendering, overflowing with diverse people and commodities, are one hundred items selected from the Edo-Tokyo Museum’s collection for you to find. - The Four Areas: From the nagaya to Ryōgokubashi Bridge, and to Ekōin Temple and the Sumida River Your journey as an Edo teenager begins in a busy morning in the nagaya. Stroll through to collect the area-themed items to open doors into the following areas, where, finally, you will enjoy a cool evening on a riverboat on the final Sumida River area. - The Sumida River Opening Thriving with Events The Ryōgokubashi Bridge carries many of Edo’s townspeople back-and-forth their destinations where countless incidents and events happen on the daily: performances of freak/animal shows (misemono), fires, and even street fights. The firework display at Sumida River and the sumo wrestling at Ekōin Temple are also two out of many of these events unique to Edo, items of which you can find and collect. Throughout your discovery, you might also encounter famous figures such as Katsushika Hokusai and Gennai Hiraga.
Screenshots
Verdict
The clearest difference is iOS requirement: Hyper Edohaku at 12.0 against onIMT's 15.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
onIMT ships an update every 5 months, Hyper Edohaku every 2 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.
| Parameter | onIMT | Hyper Edohaku |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | THD Inc. | Tokyo Metropolitan Foundation for History and Culture |
In-app purchases
onIMT
No in-app purchases
Hyper Edohaku
No in-app purchases
Questions
Is onIMT free?
Is Hyper Edohaku free?
Do onIMT or Hyper Edohaku have ads?
Which is updated more often, onIMT or Hyper Edohaku?
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