One vs NebulaBuds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One
Effortlessly convert spoken words into text and translate them into over 100 languages. This app simplifies communication by offering voice input, text translation, and speech synthesis, making it convenient and labor-saving.
- Voice-to-text conversion
- Multilingual translation
- Speech synthesis
- Supports over 100 languages
- Effortless voice input
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Convenient and effortless: Touch the area where you want to enter text, press the button, and then say what you want to say, we will automatically convert it into text for you, no need to manually enter it, which is convenient and labor-saving. Barrier-free communication: In addition to voice input, we also provide translation services that can be converted into any language you set. Multilingual support: We provide speech recognition, text translation and speech synthesis services in more than 100 languages, covering most people in the world.
NebulaBuds
This app offers real-time translation for over 130 languages, supporting audio, video calls, and even text from photos. It features AI-powered voice assistance, meeting summarization, and a unique dual-ear mode for seamless conversations.
- Real-time translation for 133 languages
- Photo and text translation with layout preservation
- Audio and video call interpretation
- AI voice wake-up for information
- Dual ear mode for simultaneous conversation
- AI meeting notes and summarization
- AI smart chat for advice
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Nebula Buds AI Interpretation APP: Translate up to 133 languages -Photo Translation: Signs, menus, product labels—translate instantly with a snap, with 1:1 font and layout preservation. -DeepSeek R1: The latest AI large model, real-time connectivity, deep thinking, with visible process. - AI Voice Wake-up: Say "Hey Nebula" to check real-time information like weather and news, - Audio and Video Call Translation: Translate conversations during video calls. The other party doesn’t need to download the app. - Dual Ear Mode: Share one earbud each, speak simultaneously, and interrupt freely, breaking free from turn-based conversations. - Meeting Notes: Identify speakers and quickly summarize meeting content. - AI Smart Chat: Realistic voice responses, answer anytime, and offer advice for your life and work. - Simultaneous Interpretation: Real-time translation of 133 languages, your personal interpreter in your ear.
Screenshots
Verdict
The clearest difference is rating: NebulaBuds at 4.4 against One's 2.3. NebulaBuds also leads on ratings volume (16K vs 188) and update cadence (every 2 weeks vs monthly). 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. One sells 10 one-off in-app purchases and NebulaBuds sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
NebulaBuds holds the better App Store score, 4.4 against 2.3. That said, the two scores are not equally well evidenced: NebulaBuds has 16K ratings behind it against 188, so its average is the more settled of the two. Written reviews point the same way: 14% of One's written reviews are positive against 25% of NebulaBuds's.
One ships an update monthly, NebulaBuds every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | One | NebulaBuds |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (188 ratings) | 4.4 (16K ratings) — better |
| Positive reviews | 13.7% of reviews | 25.3% of reviews — better |
| Number of ratings | 188 | 16K — better |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 14.0 — better |
| Further details — not scored | ||
| Size | 218 MB | 168 MB |
| Age rating | 4+ | 17+ |
| Developer | Hangzhou zhidou Technology Co., Ltd. | Shanghai PalmZen Wireless Technology Co.,Ltd |
Customer experience
One
NebulaBuds
User reviews
One
From 188 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 One-click translation
- 💡 Useful for conversations
Room to improve
- 🐛 Connection issues
- 🐛 Unreliable translations
- 🔋 Drains battery quickly
- 🔒 Authorization problems
NebulaBuds
From 16K App Store ratingsWhat we love
- 👍 Good translation accuracy
- 🚀 Impressive AI features
- 💡 Versatile functionality
Room to improve
- 🐛 Connectivity issues
- 🔋 Poor battery life
- 👎 Unreliable app performance
- 💸 Expensive subscription
- 🤔 Confusing instructions
Bugs and requests
One
Reported bugs
3 issues- Device not authorized
- App crashes after updates
- Bluetooth connectivity problems
Requested features
3 requests- More language options
- Customizable voice options
- Improved conversation mode
NebulaBuds
Reported bugs
3 issues- App crashes or freezes
- Earbuds fail to connect
- Translation feature not working as advertised
Requested features
3 requests- Add more language support
- Improve live translation capabilities
- Streamline app setup and connectivity
In-app purchases
One
- Bluetooth stick (1 year)$4.99
- Offline package 1 year$6.99
- Bluetooth stick (2 years)$9.99
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- Offline package 2 year$9.99
- Call translation (60 minutes)$9.99
- Basic Services (1 year)$24.99
- Basic Services (2 years)$39.99
- Video call duration 10 hours$49.99
- Call translation (600 minutes)$69.99
- Video call duration 1 month$79.99
NebulaBuds
- 300-minute recording package$14.99
- 3个月vip$14.99
- 3 Month VIP$19.99
Show 7 moreShow fewer
- 3-Month VIP$24.99
- 720-minute recording package$29.99
- 1年vip$29.99
- 1 Year VIP$39.99
- 1-Year VIP$59.99
- 1800-minute recording package$59.99
- 1800-minutes recording package$59.99






