OpenTrain AI vs MicBuddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenTrain AI
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OpenTrain is the platform where AI gets trained by real people — and now the full platform fits in your pocket. Whether you’re a freelancer doing AI training work or an employer building a team, the OpenTrain app brings the complete workflow to mobile: finding work, applying, interviewing, completing tasks, messaging, and tracking progress. FOR FREELANCERS & CONTRIBUTORS • Browse open AI training and data labeling jobs matched to your skills • Apply from your phone and complete screening, including voice interviews • Track proposals, applications, and active contracts in one place • Complete data-collection tasks natively: photo, video, audio, and structured tasks with guided capture • Work offline — tasks are queued securely and upload when you reconnect • Check your earnings and payout status anytime FOR EMPLOYERS • Post and edit job listings on the go • Review proposals and move candidates through your pipeline • A mobile dashboard for your active jobs and teams MESSAGING, BUILT IN • Real-time messaging with reactions, read receipts, and attachments • Work Email for project communication, all in one place • Push notifications for messages, proposal updates, and job activity ONE ACCOUNT, EVERY DEVICE Sign in with your existing OpenTrain account and pick up right where you left off on the web. New here? Create your free account at app.opentrain.ai, then sign in on mobile.
MicBuddy
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MicBuddy is a task workspace for contributors who complete audio data projects on their phone. Browse available recording, conversation, and annotation projects, review the instructions, and submit your work from one app. MicBuddy helps you keep project tasks, recording status, upload progress, and review feedback organized. Key features: - Discover available projects in Square - Join assigned projects and track your progress - Complete single-speaker recording tasks with built-in microphone capture - Join multi-participant conversation sessions with a shared passcode - Upload recordings reliably, with an upload center for retrying failed submissions - Review rejected tasks and submit corrected work when a project allows it - Manage your profile and preferred language MicBuddy is built for structured data collection workflows. Each project provides its own task instructions, language requirements, and submission rules, so you can focus on completing the work accurately.
Screenshots
Verdict
OpenTrain AI and MicBuddy are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
OpenTrain AI ships an update every 3 weeks, MicBuddy every 2 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | OpenTrain AI | MicBuddy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 44 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | OpenTrain AI | 杭州与或非数据科技有限公司 |
In-app purchases
OpenTrain AI
No in-app purchases
MicBuddy
No in-app purchases







