Cearvol vs BSLLTER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cearvol
This app allows users to control and customize their Cearvol hearing aids. Adjust volume, switch ear tips, and select scene modes with personalized settings for different environments. It also displays the battery level of your hearing aids.
- 10-level volume adjustment
- Independent left/right volume control
- Hearing aid battery percentage display
- Ear tip switching settings
- Customizable scene modes (indoor, conversation, restaurant, traffic)
- Noise reduction and voice enhancement settings
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The hearing app is developed and designed for Cearvol hearing aids to help users setup hearing aid functions and customize hearing parameters quickly. Includes the following functions as follows: "Main control " Volume adjustment: 10-level volume adjustment, synchronized with the gain, and the left and right hearing aid can be adjusted independently. Hearing aids battery : Synchronously shows the current battery percentage of the hearing aids. Ear tips switching: Different acoustic parameters are set for the two ear caps (closed and open ear tips). When switching ear tips, you need to select the right eartip setting on app. Synchronization function: Quickly switch whether the volume control of the left and right hearing aid is synchronized. Scene mode: Quickly switch scene modes and parameter applications for different usage scenarios. Scene modes include indoor mode, conversation mode, restaurant mode, and traffic mode. In each scene mode, parameters such as noise reduction level, voice enhancement level, microphone directivity, EQ compensation, etc. can be independently customized. Indoor mode is aimed at quieter indoor scenes and office scenes; Conversation mode is aimed at face-to-face conversations in conference rooms and coffee shops in generally quiet environments; Restaurant mode is aimed at dining scenarios such as Western restaurants in generally quiet environments; Traffic mode is aimed at common commuting scenarios such as taking the subway and bus.
BSLLTER
This application allows users to remotely control their hearing aids. Adjust volume, switch programs, fine-tune frequency bands, and manage noise reduction settings. It also provides battery status and connection information.
- Remote hearing aid control
- Volume adjustment
- Program switching
- Frequency band gain control
- Noise reduction settings
- Battery status check
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Users can control hearing aids remotely with BSLLTER software. With the Intelligent Control application, you can: 1.Adjust volume of the hearing aids. 2.Switch the hearing aid program. 3.Adjust the gain in different frequency band. 4.Switch feedback and noise reduction 5.Test your listening 6.Check the battery power and connection status.
Screenshots
Verdict
The clearest difference is update cadence: Cearvol at every 3 weeks against BSLLTER's every 7 months. Cearvol also leads on ratings volume (18 vs 5). BSLLTER's advantage is review sentiment (50% vs 25%). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 2.6 for Cearvol against 2.6 for BSLLTER. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews are what separate them: 25% of Cearvol's written reviews are positive against 50% of BSLLTER's.
Cearvol ships an update every 3 weeks, BSLLTER every 7 months. The most recent releases landed on September 18, 2026 and August 23, 2026 respectively.
| Parameter | Cearvol | BSLLTER |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (18 ratings) | 2.6 (5 ratings) |
| Positive reviews | 25.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 18 — better | 5 |
| Update frequency | Every 3 weeks — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 115 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | UNICE Intelligent Medicine Shenzhen Co., Ltd. | KOOMA INTERNATIONAL TRADING, LLC |
Customer experience
Cearvol
BSLLTER
In-app purchases
Cearvol
No in-app purchases
BSLLTER
No in-app purchases









