Audio Annotation vs HaiCrowd
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Audio Annotation
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Audio Annotation is a revolutionary product developed by NSDevil Co. Ltd., a company based in Daejeon, South Korea. It is an innovative solution for converting audio recordings into text form using advanced speech recognition technology. With Audioannotation, users can easily upload their audio files and receive accurate, high-quality transcriptions in a matter of seconds.
HaiCrowd
This application simplifies data collection by automatically configuring media settings based on project requirements. It allows users to focus on gathering high-quality data efficiently, even in remote areas without internet access. Admins can manage projects and assign tasks through a central dashboard.
- Automatic media property configuration
- Offline data collection
- Semi-automatic consent form generation
- Semi-automatic metadata generation
- Multi-party and multi-channel audio recording
- Live audit reports
- Scripted audio recording
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HaiCrowd is an AI Data Collection app and helps in streamlining data collection workflow. Based on the project configuration,HaiCrowd app automatically configures the media properties (such as image/video resolution, Audio sampling rate, etc.), thus taking away the technical complexities from users collecting data. This enables users collecting data to focus on collecting quality data faster. Projects are created and assigned to relevant users by admins from the HaiCrowd dashboard. Some of the cool features of HaiCrowd app are, 1. Offline mode (work from any remote area without internet connection) 2. Semi-automatic consent form generation 3. Semi-automatic metadata generation 4. Multi Party audio conferencing & recording 5. Multi-Channel audio recording 6. Live audit report 7. Scripted audio recording
Screenshots
Verdict
Audio Annotation and HaiCrowd 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.
Audio Annotation ships an update every 6 days, HaiCrowd every 3 days. Both last shipped on October 2, 2026.
| Parameter | Audio Annotation | HaiCrowd |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 49 MB | 66 MB |
| Age rating | 4+ | 17+ |
| Developer | NSdevil | HaiData |
In-app purchases
Audio Annotation
No in-app purchases
HaiCrowd
No in-app purchases
