Check the acquisition promise
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Kelfar Technologies · iOS
Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.
01 / Creative research
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.
Browse observed advertisers ↗Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.
Review the market context ↗02 / Storefront & product
Study the product story and store experience behind the acquisition funnel.
03 / Market context
Keep revenue, downloads and store rankings separate from advertising performance.
This app is packed with features and is loaded with many helpful options and amazing settings. I am very pleased with this and it has come in handy for my purposes ever since I downloaded it. Many thanks to Kelfar Technologies for all of the hard work, diligence, and expertise that goes into creating such a useful tool.
Kelfar Technologies has raised the bar to the highest level with this app. As a Master-Chanter (“Protopsaltis”) of Byzantine Music and instructor of the psaltic art, this tool has become invaluable to me in various aspects of my field. First and foremost, it is an excellent aid in teaching the various scales and modes of Eastern Orthodox hymnology. The app is able to faithfully replicate the intricate microtonal intervals of the Byzantine scales, allowing the student to hear how tetrachords are “built” within the octal diatonic, chromatic, and enharmonic scales. In this respect, as a teaching tool, it is second to none. Second, this app produces a true accompaniment of the ison drone that is characteristic of Byzantine chant. Developed and digitized with recordings of human voices, World Scales faithfully produces a more authentic audio result than other similar tools available. I stress that HUMAN VOICES were used as the basis of making the sound output, and not by some other artificial “electronic” means. When properly transmitted through a high-quality speaker, the audio output of this app is the closest sound to a group of human “drone-holders” (i.e. “isokrates”) that one will hear in an actual Byzantine Choir. And third, although I am very hesitant yet selectively cautious in using this app in an actual church setting (the tradition of Orthodox hymnology allows only ONE instrument to be used in worship, and that instrument is the human voice), I do support its use in audio recordings and concert settings to help actual assistants and choir members in faithfully rendering the ison notes, which are the “decoration” to the melodic executions of the hymns. I applaud Kelfar Technologies in the development of this tool, and in its constant efforts to modify, improve, and further develop this app to make it the best of its kind. Thank you, Karim! Much continued success!
While starting to learn chanting with a Greek Orthodox church, I found out about the WorldScales app. With it, I can set the correct pitches for the various scales, something that thousands of other musical apps cannot do. I was delighted to see that not only can the user set pitch adjustments on each key, but it has the soft chromatic scale and Byzantine Mode 2 available directly from a menu. That was exactly what was needed for the music I was practicing. I was a little bummed because running on a MacBook the user interface is not as convenient as it would be for a touch screen on an iPad. But then I was completely delighted to discover the WorldScales' MIDI feature in the settings, connect my keyboard via USB cable, and it just worked. That's an even better UI than a touch screen.
WorldScales Discover a world beyond standard tuning. Not all scales are created equal. WorldScales lets you explore the rich diversity of musical tu...