Radiooooo vs Kalliope 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radiooooo
Explore music from any country and decade. This app offers a curated selection of global music, allowing you to discover new sounds and artists. It's a collaborative platform built by music enthusiasts.
- Discover music by country
- Explore music by decade
- Curated musical selections
- Collaborative music platform
- Human-curated playlists
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The best way to discover new music! Pick a country, a decade and let us take you through the finest musical selection in the world. Curated with love, by humans for humans. Radiooooo.com is a collaborative musical platform born in 2013 and the greatest diggers community in the world. You like Radiooooo? Please rate the app and leave us a nice comment. Follow us on Instagram, TikTok, or Facebook
Kalliope 2
This app delivers personalized multimedia content linked to events, supporting various formats like video and augmented reality. It enables real-time audience interaction and integrates with other devices for enhanced transmedia experiences.
- Personalized multimedia content delivery
- Support for various media formats
- Real-time audience interaction
- Second screen content management
- Accessibility and linguistic services
- Transmedia experiences with device integration
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Kalliópê es una aplicación móvil que permite la recepción de mensajes multimedia asociados a un evento determinado, sea físico, digital o híbrido. Los contenidos recibidos, diseñados por el organizador del evento, son personalizados y admiten distintos formatos: textos, imágenes, sonidos, videos, videos 360, realidad aumentada… La aplicación permite la interacción en tiempo real con la audiencia, el envío y gestión de contenido adicional (second screen) así como recibir los servicios de accesibilidad, lingüística y/o cognitiva, según los requisitos y/o preferencias de cada usuario. Kalliópê también se comunica con otros dispositivos como pantallas, altavoces o sensores, permitiendo crear nuevas experiencias transmedia desde una única plataforma.
Screenshots
Verdict
The clearest difference is rating: Kalliope 2 at 5.0 against Radiooooo's 4.0. Kalliope 2 also leads on in-app purchases (none vs 2) and update cadence (every 5 days vs every 2 months). Radiooooo's advantage is ratings volume (774 vs 1). On price, ads, device support and iOS requirement 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. Radiooooo sells 2 in-app purchases, starting at $4.49 per month. Kalliope 2 asks for nothing beyond the download.
Kalliope 2 holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Radiooooo has 774 ratings behind it against 1, so its average is the more settled of the two.
Radiooooo ships an update every 2 months, Kalliope 2 every 5 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Radiooooo | Kalliope 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (774 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 57.8% of reviews | — |
| Number of ratings | 774 — better | 1 |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 17 MB |
| Age rating | 12+ | 12+ |
| Developer | RADIOOOOO | IGLOR Soluciones Audiovisuales Avanzadas SL |
Customer experience
Radiooooo
Kalliope 2
Bugs and requests
Radiooooo
Reported bugs
3 issues- Music playback issues
- Inconsistent login/account functionality
- Outdated/incorrect music metadata
Requested features
4 requests- Ability to save/replay liked songs
- Improved music search and filtering
- Integration with music streaming services
- More genre/subgenre options
Kalliope 2
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Radiooooo
- Unlimited access$4.491 Month
- Unlimited access1 Month trial$45.991 Year
Kalliope 2
No in-app purchases
