D/4AM vs HiddenChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D/4AM
This application streamlines on-site plant maintenance by integrating with SAP PM. It offers a user-friendly platform for managing tasks, enhanced by conversational AI and multimodal inputs for frontline workers.
- Real-time plant maintenance management
- SAP PM integration
- Intuitive user interface
- Conversational AI
- Multimodal inputs
- Task management platform
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Datch for Asset Management (D/4AM) revolutionizes frontline work by enabling real-time, on-site plant maintenance management. D/4AM effortlessly integrates with SAP PM through an intuitive interface that anyone can use. With a strong focus on user experience, D/4AM offers maintenance teams a central platform for managing tasks, powered by conversational AI and multimodal inputs to enhance daily operations.
HiddenChat
This AI chat application operates entirely on your device, ensuring all your conversations remain private and secure. It offers fast, offline assistance for writing, summarizing, and translating without requiring any setup or account creation. Enjoy daily free usage with an optional one-time purchase to remove limits.
- Runs entirely on device
- No setup or account needed
- Offline functionality
- Write, summarize, translate
- Lightweight for older devices
- One-time purchase to remove limits
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A private AI chat that runs entirely inside your phone. Open it and start typing. No setup, no account, nothing to choose. Small and light, but sharper than its size suggests. Everything happens on your device, so nothing you write ever leaves it. No cloud, no servers, no sign-up. • Simple, with nothing to set up • Light enough to run on older iPhones, not just the newest • Fast answers, even with no signal • Nothing you write leaves your phone • Helps you write, summarize, translate and think Free to use every day. A one-time unlock removes the daily limit, forever. No subscription, no ads.
Screenshots
Verdict
The clearest difference is monetization model: D/4AM at free against HiddenChat's free with in-app purchases. D/4AM also leads on ratings volume (7 vs 1) and device support (3 vs 1). On price, rating, update cadence and ads 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.
On the App Store both sit at effectively the same score — 5.0 for D/4AM against 5.0 for HiddenChat. That said, the two scores are not equally well evidenced: D/4AM has 7 ratings behind it against 1, so its average is the more settled of the two.
D/4AM ships an update every 3 weeks, HiddenChat monthly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | D/4AM | HiddenChat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 18.0 |
| Further details — not scored | ||
| Size | 68 MB | 739 MB |
| Age rating | 4+ | 12+ |
| Developer | Datch Inc | ANIMALADA |
In-app purchases
D/4AM
No in-app purchases
HiddenChat
No in-app purchases
