Retro Tuner vs K1047
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Retro Tuner
This app provides accurate and fast pitch detection for musical instruments with a retro-inspired analog interface. It supports a wide range of instruments and features adjustable reference pitches for precise tuning.
- Analog panel meter UI
- Nixie tube note display
- Digital signal processing
- Supports 88-key piano range
- Adjustable reference pitch (A=440 Hz)
- Detune factor in cents
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Retro Tuner is a musical instrument tuner for the iPhone, iPad, and iPod Touch. It features a user interface in the style of an analog panel meter and Nixie tube note display, but below this retro surface are all-new digital signal processing algorithms that determine the pitch of your instrument quickly and accurately. Retro Tuner was written by the owner of several crappy guitars and a 1920s player piano that is constantly going out of tune, with the idea that if it can tune those, it can tune anything. Retro Tuner tunes in equal temperament and can handle the full 88-key piano range. The reference pitch defaults to A=440 Hz and can be adjusted via Settings either as a frequency in Hz or as a detune factor in cents.
K1047
Listen to your favorite radio hosts and discover more music with a wider variety. Control your listening experience by turning the live stream on or off. Get the music you want directly from the radio.
- Live radio stream control
- Artist and song interaction
- Listen to favorite hosts
- Music variety
- On-demand listening
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The K104.7 free app offers you more music, better variety! Hear and interact with the artists and songs that you love. With the K104.7 app, you can connect with us like never before. Just download and open your K104.7 app to listen to your favorite hosts like Bob & Sheri and Phil & Mel. You decide when you want to listen, and when you want to browse by turning the live stream on or off within the app. Get what you want off the radio with the new K104.7 app.
Screenshots
Verdict
The clearest difference is price: K1047 at Free against Retro Tuner's $2.99. K1047 also leads on rating (4.8 vs 3.5) and ratings volume (122 vs 2). Retro Tuner's advantage is ads (none vs shown) and review sentiment (63% vs 50%). On in-app purchases 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
K1047 is free to download; Retro Tuner costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
K1047 holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: K1047 has 122 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 63% of Retro Tuner's written reviews are positive against 50% of K1047's, so the app with the better star average is not the one people write more warmly about.
Retro Tuner ships an update every 9 months, K1047 every 5 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Retro Tuner | K1047 |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.5 (2 ratings) | 4.8 (122 ratings) — better |
| Positive reviews | 62.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 2 | 122 — better |
| Update frequency | Every 9 months | Every 5 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 25 MB | 27 MB |
| Age rating | 4+ | 12+ |
| Developer | Waxing Wave | Beasley Broadcast Group |
Customer experience
Retro Tuner
K1047
In-app purchases
Retro Tuner
No in-app purchases
K1047
No in-app purchases
