Osia Smart vs AudioKey 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Osia Smart
Manage your sound processor settings and personalize your hearing experience directly from your smartphone. Adjust volume, treble, mid, and bass, activate wireless streaming, and even locate a lost device. Access support and daily tips for optimal use.
- Change sound processor programs
- Activate wireless streaming
- Adjust volume, treble, mid, bass
- Control accessory volume
- Link programs to locations
- Locate lost sound processor
- View status and usage
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Control your Osia Sound Processor directly from your iPhone and personalize your hearing experience. Note: To use the Osia Smart App, you first need to pair your iPhone to your sound processor and wait for pairing confirmation. Visit www.osiasmartapp.com for instructions. With the Osia Smart App, you can... - Change programs on your sound processor and activate wireless streaming - Adjust the volume and treble/mid/bass on your sound processor - Adjust the volume of your Cochlear™ Wireless Accessories - Link a personalized program to specific locations - Locate your lost sound processor - View sound processor status and usage - Access support information and daily tips Compatibility For up-to-date compatibility, visit www.cochlear.com/compatibility Note: Continued use of GPS running in the background can dramatically decrease battery life.
AudioKey 2
This app functions as a remote control for compatible MED-EL audio processors, allowing users to customize settings and check usage statistics. Caregivers can also utilize its features to support others, and it includes a tool to help locate misplaced devices.
- Remote control for audio processors
- Customize personal settings
- Find My Processor functionality
- Check usage statistics
- Access support material
- Configure AudioStream device
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The AudioKey 2 mobile app from MED-EL can be used as a remote control for supported MED-EL audio processors which are SONNET (EAS), SONNET 2 (EAS), and RONDO 3. Additionally, AudioKey 2 lets you customize personal settings, such as the names of programs on the audio processors. AudioKey 2 can be used by caregivers to support other users, such as young children. You can use the Find My Processor functionality to help locate lost or misplaced audio processors. AudioKey 2 also lets you check the usage statistics of the connected audio processors and quickly access helpful support material from MED-EL. If you own a MED-EL AudioStream device, you can configure it with AudioKey 2.
Screenshots
Verdict
The clearest difference is rating: AudioKey 2 at 5.0 against Osia Smart's 2.0. AudioKey 2 also leads on update cadence (every 4 months vs every 8 months). Osia Smart's advantage is ratings volume (45 vs 1). On price, review sentiment, 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.
AudioKey 2 holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Osia Smart has 45 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 9% of Osia Smart's written reviews are positive against 11% of AudioKey 2's.
Osia Smart ships an update every 8 months, AudioKey 2 every 4 months. The most recent releases landed on October 21, 2026 and July 7, 2026 respectively.
| Parameter | Osia Smart | AudioKey 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (45 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 8.9% of reviews | 11.1% of reviews — better |
| Number of ratings | 45 — better | 1 |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 210 MB | 243 MB |
| Age rating | 4+ | 12+ |
| Developer | Cochlear Limited | MED-EL Elektromedizinische Geraete GmbH |
Customer experience
Osia Smart
AudioKey 2
In-app purchases
Osia Smart
No in-app purchases
AudioKey 2
No in-app purchases
