Librarian vs RC_Speaker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Librarian
This app helps you concentrate by alerting others when noise levels exceed your set sensitivity. It's useful for quiet work or waking up to sounds in new environments.
- Set audio level sensitivity
- Alerts others with a 'shhhh'
- Helps concentration
- Useful for waking up
- Simple interface
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Wish you could automatically tell the people around you to be quiet while you're trying to concentrate on an important task? Want to wake up at the slightest noise around you in an unfamiliar environment? Librarian for the iPhone does all of this (and more coming soon)! Simply set the audio level sensitivity and tap start to begin. Once the noise surrounding you exceeds the set sensitivity level, those around you will be politely notified with a "shhhh". Initial app icon resource courtesy of https://www.iconfinder.com If you like Librarian, please take the time to give us a nice review. It really helps us in the end.
RC_Speaker
Control BLE dual-mode products with your iOS device. Adjust LED lights, play music from various sources, tune into FM radio, and customize EQ settings.
- BLE remote control for dual-mode products
- LED color, brightness, and color temperature control
- Local, SD card, and UDisk music playback
- FM radio tuning
- Customizable EQ settings
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The application can use BLE remote control BLE dual-mode products, the use of iOS devices as a remote control, control the product features. 1, Lantern: The corresponding LED lights color, brightness and color temperature control,LED lights can be selected in accordance with the corresponding mode changes 2, Music: You can use Bluetooth peripherals to play the user's local music, SD card music and UDisk music 3, FM:Find and change radio station 4,EQ: You can choose the corresponding mode according to the built-in EQ effect, but also according to preferences custom EQ
Screenshots
Verdict
The clearest difference is rating: Librarian at 2.6 against RC_Speaker's 1.0. Librarian also leads on ratings volume (5 vs 1) and iOS requirement (7.0 vs 9.0). RC_Speaker's advantage is update cadence (every 5 weeks vs every 5 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Librarian holds the better App Store score, 2.6 against 1.0. That said, the two scores are not equally well evidenced: Librarian has 5 ratings behind it against 1, so its average is the more settled of the two.
Librarian ships an update every 5 months, RC_Speaker every 5 weeks. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.
| Parameter | Librarian | RC_Speaker |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (5 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 5 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 7.0 — better | 9.0 |
| Further details — not scored | ||
| Size | 3 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Ari Braginsky | Jiaxing Rongcheng Electronic Technology Co., Ltd |
Customer experience
Librarian
RC_Speaker
In-app purchases
Librarian
No in-app purchases
RC_Speaker
No in-app purchases
