KSJS Radio vs Etüdra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KSJS Radio
Listen to student-run radio broadcasting live from Silicon Valley. See what's playing in real-time, browse the program guide, and explore shows. Enjoy uninterrupted background playback and CarPlay integration.
- Real-time track, artist, and album information
- Comprehensive program guide by day
- Show directory with tune-in times
- Background playback
- CarPlay support
- Live Activities for Lock Screen and Dynamic Island
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Student radio from the heart of Silicon Valley, broadcasting at 1,500 watts on 90.5 FM since 1963. See what's on in real time: track, artist, album and show name, updated as the DJ spins, plus the last few songs on air. Browse the full program guide by day, with 40+ shows spanning hip-hop, jazz, Latin, alternative, news and more. Explore the show directory by genre to find your next favorite, and set a reminder to get a notification five minutes before it starts, once or every week. The stream keeps playing in the background when you switch apps. Control it from your Lock Screen, Control Center, Dynamic Island or AirPlay, and use CarPlay for now-playing info and playback controls from your dashboard. Light and dark mode, with VoiceOver support. KSJS is part of the Radio, TV and Film program at San José State University, and has been the soundtrack of SJSU since 1963. Now it's always one tap away.
Etüdra
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Etüdra helps musicians plan focused practice sessions, stay on tempo with a built-in metronome, keep in tune with a built-in tuner, and track BPM progress over time. PLAN WHAT TO PRACTICE Build programs from sections — scales, rhythm, ear training, technique, whatever you're working on. Break each section into focused exercises, each with its own target BPM and minimum duration, so every minute has a purpose. STAY ON TEMPO A built-in metronome runs through every exercise with count-in, tap-tempo, subdivisions, and accents. Nudge the tempo in 5-BPM steps, or press and hold to jump by 10. SEE MEASURABLE PROGRESS Etüdra logs the actual BPM you hit on every exercise, so you always know where you left off. A calendar heatmap shows your weekly minutes, week-over-week comparison tells you whether you're trending up, and per-block history keeps your recent attempts. TUNE WITHOUT SWITCHING APPS Tune before you start, or pause mid-session and open the chromatic tuner. No app-switching, no lost focus. SHARE ONLY WHEN YOU CHOOSE Post session summaries to followers, choose the audience, or keep everything private. Three privacy tiers — public, followers-only, or strict private. One-tap kudos. USE ETÜDRA FOR Daily scales, technique drills, rhythm work, lesson assignments, repertoire practice, or focused free-time sessions. Free Time mode skips the block structure and simply times your practice, with the metronome and tuner one tap away. From scales and technique to rhythm work and repertoire, Etüdra turns practice time into measurable progress — built for guitarists and other instrumentalists. FREE AND PRO Plan and practice for free: up to 2 programs, the full metronome, chromatic tuner, BPM logging, session tracking, weekly insights, and the social feed. Etüdra Pro removes the limits — unlimited programs, sections, and custom topics — and unlocks full per-block history, long-range trends (3-, 6-, and 12-month), and unlimited sharing. Etüdra Pro is an auto-renewing subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period; your account is charged for renewal within that 24-hour window. Manage or cancel anytime in your Apple ID account settings. See the in-app Upgrade screen for current pricing. YOUR DATA, YOUR TERMS Export your data anytime as JSON. Delete your account in one tap. Terms: https://etudra.com/terms Privacy: https://etudra.com/privacy Built for musicians who want calm, focused practice: structure, tempo, history, and visible progress — without the noise.
Screenshots
Verdict
The clearest difference is in-app purchases: KSJS Radio at none against Etüdra's 2. Etüdra's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (16.4 vs 18.6). 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
Both are free to download. Etüdra sells 2 in-app purchases, starting at $5.99 per month. KSJS Radio asks for nothing beyond the download.
KSJS Radio ships an update every 2 months, Etüdra fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | KSJS Radio | Etüdra |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 3 MB | 67 MB |
| Age rating | 12+ | 4+ |
| Developer | Razorfrog Web Design | Etudra OU |
In-app purchases
KSJS Radio
No in-app purchases
Etüdra
- Pro Monthly$5.991 Month
- Pro Yearly$59.991 Year









