shelfs vs VU Meter Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
shelfs
Listen to community radio programs up to 7 days after they air. Manage your favorite shows in playlists that automatically update with the latest episodes. Enjoy local radio content on your schedule.
- 7-day catch-up playback
- Playlist management
- Automatic episode updates
- Cross-search by program, station, genre
- Background playback
- Resume playback
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shelfs(シェルフス) コミュニティFMを7日間“あとから”聴ける コミュニティFMの番組を、放送終了後7日間の聞き逃しで“あとから”聴けます。再生対象は各局がshelfs対応に設定した番組のみ。お気に入りの番組タイトルをプレイリストで管理すれば、同じリストでも毎週自動で最新回へ更新。利用は無料。対応番組は順次拡大中。 shelfs(シェルフス)は、コミュニティFMの放送を終了後7日間聞き逃し再生できるアプリです。忙しくてリアルタイムで聴けない番組も、スマートフォンで“あとから”楽しめます。 ◆ プレイリスト(My shelf)の考え方 ・番組タイトルで管理:ユーザーが番組タイトルをプレイリストに追加します。 ・ジャンル指定:プレイリストには用意されたジャンルから1つ指定できます。 ・ローリング更新:聞き逃し期間は7日間。同じプレイリストでも翌週には各番組の最新回に入れ替わります。 ◆ 対応番組について ・再生できるのは、各ラジオ局がshelfs対応に設定した番組のみです。 ・対応局・番組は順次拡大中。最新の対応状況はアプリ内でご確認ください。 ◆ 主な機能 ・聞き逃し再生(7日間) ・番組/局/ジャンルでの横断検索 ・お気に入り登録/プレイリスト管理(番組タイトル単位) ・バックグラウンド再生/続きから再生 ◆ こんな人に ・放送時間に合わせづらいけれど、地元の番組を逃したくない ・通勤・家事などのすき間時間で、信頼できる“地域の声”を聴きたい 注:番組の公開可否・公開期間は局/番組により異なる場合があります。対応状況は予告なく変更されることがあります。
VU Meter Pro
This professional audio metering app provides a comprehensive suite of tools for broadcast, streaming, and live sound. It offers VU, loudness, phase, LED bar, and waveform displays, configurable to your workflow. Connect external audio interfaces via USB for accurate measurements anywhere.
- VU meter
- Loudness meter
- Phase meter
- LED bar meter
- Waveform display
- Configurable meter layout
- USB audio interface support
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VU Meter Pro is a professional audio metering app for broadcast, streaming, and live sound. It combines an analog VU meter with a loudness meter, phase meter, LED bar meter, and waveform display. Arrange the meters you need on screen to match each on-site workflow. Connect any USB class-compliant device (audio interface, mixer, recorder, or the audio output of a camera or switcher) with a single USB cable and start measuring right away. Use it as a portable meter in the field, or as a fixed tool in the studio. Works on both iPhone and iPad. What it measures · Audio level (analog VU meter / LED bar) · Loudness (Momentary / Short-term / Integrated / True Peak / LRA) · Loudness history (graph display, up to 24 hours) · Waveform (Waveform Scope, up to 30-minute history, pinch-to-zoom) · Phase (Lissajous + correlation meter) Standards-based measurement Loudness measurement follows ITU-R BS.1770 and conforms to EBU R128 / EBU Mode (Tech 3341 and 3342) and ARIB TR-B32, at 48 and 96 kHz. Measurements are verified against reference signals. ITU-R BS.1770 is the measurement standard widely adopted by national broadcast loudness practices such as ATSC A/85 (US) and OP-59 (Australia), which target −24 LKFS. Loudness presets set the target and the True Peak limit in one tap: ARIB TR-B32, EBU R128, ATSC A/85 and OP-59 for broadcast, plus Spotify, YouTube and Apple Podcasts for streaming. Built for the field · Responsive, real-time metering · Standard and wide-range VU scales (−20 to +3 / −40 to +10) · Seven meter themes for different lighting conditions and preferences · LED bar colors: four presets, or set your own three zone colors · Peak Indicator with an adjustable True Peak threshold, so you can tell at a glance whether a peak occurred · Input Trim (±5 dB) for level calibration · Peak-hold readouts for easy reading at a glance Launch and measure. No setup required. This app is built and maintained by a working engineer in radio, audio, and video production, for use in the field. Visibility and operational reliability are the top priorities. Use with an external audio interface. The built-in microphone is not suitable for accurate measurement.
Screenshots
Verdict
The clearest difference is review sentiment: VU Meter Pro at 100% against shelfs's 0%. shelfs's advantage is price (Free vs $9.99). On update cadence, ads, 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
shelfs is free to download; VU Meter Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
shelfs ships an update fortnightly, VU Meter Pro every 3 weeks. The most recent releases landed on August 27, 2026 and September 12, 2026 respectively.
| Parameter | shelfs | VU Meter Pro |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.6 | 18.6 |
| Further details — not scored | ||
| Size | 7 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Smart Engineering | Tomoaki Shimizu |
Customer experience
shelfs
VU Meter Pro
In-app purchases
shelfs
No in-app purchases
VU Meter Pro
No in-app purchases









