Chirp plays a two-second long noise that sounds as if it was made by a robotic bird. When heard by other devices it triggers a download.
The software was developed by Animal Systems, a spin-off business from University College London (UCL).
It is free to use, but companies will be charged a fee for add-on services.
At the moment users are limited to sending pictures, website links or 140-character text messages. These appear in a feed similar to Facebook's timeline.
Other applications such as Android Beam, Bump, Datasync and Dropbox allow users to swap material via bluetooth, wi-fi or links to cloud-based storage.
But Chirp has the advantage that it can quickly send data to multiple devices at once without them needing to be either paired or have a wireless connection.
If recipients are offline their devices will remember the "chirp" and download associated content later.
"We are pretty sure this is unique," the firm's chief executive Patrick Bergel told the BBC.
"We solve the problem of having to pair devices to move data. It's fairly novel to be able to transmit information to anyone who is in earshot - a large number of devices can share the same information at the same time using sound.
"You can also use it as a device shifting mechanism. In the future you will be able chirp yourself a link to a map from your laptop."
Mr Bergel says Chirp's distinctive sound allows it to work at low volumes in relatively noisy locations such as pubs, clubs or busy streets.
It can also work over public address systems or radio transmissions - potentially allowing broadcasters a way to send up-to-date pictures or links to background information; or an advertiser to send coupons or snippets of a song or promotional video.
Animal Systems subscribes to a "blacklist" service to prevent users transmitting known pornographic or illegal-content website links. However, it does not plan to moderate other material.
The application works by uploading a user's material to the firm's servers. The data is then identified with a 50-bit address space: one of trillions of available identifiers.
This location is then sent to the sender's device. When the user presses a button in the app it plays an audio-encoded version of the address.
Data has long been passed between machines in the form of sound, including recordings on tapes used to load programs into 1980s home computers and early modems dialling into networks.
Even so, Mr Bergel said he had taken steps to prevent others copying his product.
"We have a systems patent on moving short codes over the air," he said.
"We have [also] solved a lot of difficult problems. There's a lot of technical issues around moving data and making it robust against noise and echoes."
Having launched the app the five-man team behind it will now focus on offering premium services to marketers and other businesses.
Mr Bergel said these could include:
A guarantee that uploaded content would be permanently kept on the firm's servers.
Access to analytical data letting firms track whose devices have "listened" to their chirp.
The ability to send video messages that play within the Chirp app.
Mr Bergel said the ultimate goals was to see manufacturers pre-install Chirp on handsets.
However, he must first convince users that they need the service at a time when wi-fi, 4G data and advanced bluetooth connectivity are becoming increasingly common.
For now Chirp is only available as an iPhone app. An Android version is promised "soon".
Headlines Newsview all
Without mincing words, I want to implore you to use your authority as the president of the sovereign state of Ghana to disband the Synagogue ...
The Asamankese police in the Eastern Region have arrested a 40-year-old mother of three, Felicia Frimpomaa, for stealing a four-month-old baby girl. Briefing the Daily Graphic ...
Ms Eva Lokko The Accra High Court has declared as unlawful, the dismissal of a former Director-General of the Ghana Broadcasting Corporation (GBC), Ms Eva Lokko, ...
Dr Mahamadu Bawumia Lawyer for petitioners,Philip Addison will today re-examine their star witness Dr. Mahamadu Bawumia as they continue to contest the outcome of the 2012 ...
Pharmacists in government hospitals have insisted that they would continue with their strike until they are placed on the appropriate salary levels.Their association, GHOSPA, insists ...
Police in Bawku have intercepted two trucks carrying two thousand bags of government subsidised fertilizer they believe were being smuggled to neighboring Burkina Faso. The ...
A three-day Internet Governance and Standards Development workshop to sensitise the internet community on key issues affecting the sector opened in Accra on Tuesday.The workshop, ...
Businessman Alfred Agbesi Woyome Messers Stephano Ramella Pezza and Jimmy Castagna Managing Directors of Consar Limited and Michelletti and Co respectively have denied working with embattled ...
The Ghana Federation of the Disabled (GFD) says some Metropolitan, Municipal and District Assemblies (MMDAs) are failing to release the two per cent Common Fund ...
Highlife artiste, keyboardist and producer, Bessa Simons is set to thrill the audience at the nation’s premier jazz bar, +233 this Saturday May 25.Performing alongside ...
The government has announced an imminent shake-up in the leadership of the Customs, Excise and Preventive Service (CEPS) at the various entry points in the ...
The construction site for Africa's biggest technology park, HOPE CITY has now been moved to Prampram from Donkonaa, an area between Weija and Kosoa. The ...