TRUEFREE vs Khos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TRUEFREE
Enhance your workout with this companion app for specific Bluetooth earphones. Customize audio with an equalizer, perform hearing tests, monitor battery, and access unique features like white noise. Keep your earphones up-to-date with firmware updates.
- Firmware updates
- Customizable equalizer
- Hearing test
- Battery level indicator
- White noise generator
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TRUEFREE is a companion app designed exclusively for TrueFree series Bluetooth earphones. It empowers your workout experience with customized settings and unique features: ~ Firmware updates ~ Customizable equalizer ~ Hearing test ~ Battery level indicator ~ White noise ~ More unique features Supported devices: TRUEFREE O1、TRUEFREE F2、YAMDROK Power1、TRUEFREE O2、 TRUEFREE Clip C10、 TRUEFREE B1、 TRUEFREE EarFit DS1、YAMDROK NC1、TRUEFREE HF-10、TRUEFREE HD-100、 TRUEFREE HD-200、 TRUEFREE F3
Khos
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Khos gives you a different email address for every service you sign up for. Real mail gets forwarded to your inbox. Spam, viruses and phishing get stopped at the door. CREATE ALIASES IN SECONDS Tap once and get a random alias like k7x2m9qd@khos.io. Paste it into any signup. Mail forwards to your real address automatically. KNOW WHO LEAKED YOUR EMAIL Every alias is tied to one service. When spam arrives on the alias you gave a shop two years ago, you know exactly who sold your address. Pause the alias and the spam ends. THREATS NEVER REACH YOU Suspicious email gets quarantined before delivery. Review it in the app, deliver it if it is legitimate or delete it for good. Get a push notification the moment something is stopped. BLOCK SENDERS FOR GOOD One tap and a sender can never reach any of your aliases again. PRIVACY BY DESIGN Quarantined mail is encrypted at rest. Choose EU data processing. Data retention you control, from 30 to 180 days. A public warrant canary you can check any day at khos.io. KHOS PRO Unlimited aliases, custom alias names like you@khos.io, virus scanning, tracker stripping and quarantine review. Your digital identity, protected. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: TRUEFREE at none against Khos's 3. On price, ads, device support and iOS requirement 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. Khos sells 3 in-app purchases, starting at $7.99 per month. TRUEFREE asks for nothing beyond the download.
| Parameter | TRUEFREE | Khos |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (17 ratings) — better | — |
| Positive reviews | 10.3% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 42 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳市星科启创新科技有限公司 | Rafael V |
Bugs and requests
TRUEFREE
Reported bugs
15 issues- Registration password validation rejects valid 6-20 character passwords
- Special characters not allowed in passwords without notification
- Register button invisible in dark mode
- Verification code email not sent
- App crashes when clicking 'connect device' on iOS 18.6.2
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- Device name validation prevents pairing with default names
- Endless loop between app and Bluetooth settings during pairing
- Network error messages appear randomly
- App switches to Chinese after updates
- Firmware update progress stuck at 0%
- Scan function repeatedly prompts connection instead of connecting
- VoiceOver incompatibility prevents terms acceptance
- Relaxation music hall closes app on iOS
- Touch control settings don't persist (disabled in app but still active)
- Device detection fails for certain models (TrueFree 01, T2, T3)
Requested features
10 requests- Optional account creation (guest mode)
- Better password requirement documentation
- Improved UI with visible, labeled buttons
- Better language localization and persistence
- Arabic language support
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- Accessibility improvements for screen readers
- Volume override/increase maximum setting
- Better device pairing interface
- Comprehensive user manual (not just video)
- Web-based registration alternative
Khos
Not enough reviews yet to summarise bugs or requests.
In-app purchases
TRUEFREE
No in-app purchases
Khos
- Khos Pro$7.991 Month
- Khos Pro (3 months)$21.993 Months
- Khos Pro (Annual)$79.991 Year









