# D/4AM vs Open Chat

The clearest difference is rating: D/4AM at 5.0 against Open Chat's 3.7. D/4AM also leads on in-app purchases (none vs 4). Open Chat's advantage is update cadence (every 5 days vs every 3 weeks) and iOS requirement (13.0 vs 15.5). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Open Chat sells 4 in-app purchases, starting at $4.99 per 7 days. D/4AM asks for nothing beyond the download.

D/4AM holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 7 and 3 respectively.

D/4AM ships an update every 3 weeks, Open Chat every 5 days. The most recent releases landed on August 3, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | D/4AM | Open Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/d4am/id1404179282/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/open-chat-ask-ai-chatbot/id6458191227/reviews) |
| Number of ratings | **7** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 68 MB | 13 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Datch Inc.](https://appshunter.io/developer/1750405023) | [Multiverse](https://appshunter.io/developer/1690571886) |

## What reviewers say

### D/4AM

[App page](https://appshunter.io/ios/app/d4am/id1404179282)

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.

**Highlights:** Real-time plant maintenance management, SAP PM integration, Intuitive user interface, Conversational AI, Multimodal inputs, Task management platform

**Features:** macOS Compatibility

**In-app purchases:** none


### Open Chat

[App page](https://appshunter.io/ios/app/open-chat-ask-ai-chatbot/id6458191227)

Engage in dynamic conversations with an advanced AI chatbot. This application offers instant, informative, and fun interactions on a vast array of subjects, with continuously improving algorithms for a natural experience.

**Highlights:** Write essays and emails, Translate and practice languages, Homework assistance, Content rewriting, Recipe generation, Idea brainstorming, Information retrieval

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly Promo | $6.99 | per month |
| Monthly | $9.99 | per month |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is D/4AM free?

D/4AM is free to download, with no in-app purchases.

### Is Open Chat free?

Open Chat is free to download, with in-app purchases available.

### Which has better reviews, D/4AM or Open Chat?

D/4AM is rated higher. D/4AM averages 5.0 out of 5 from 7 ratings, while Open Chat averages 3.7 from 3 ratings.

### Do D/4AM or Open Chat have ads?

Neither D/4AM nor Open Chat shows ads.

### Which is updated more often, D/4AM or Open Chat?

D/4AM ships an update every 3 weeks, and Open Chat every 5 days. Most recently, D/4AM was updated on August 3, 2026 and Open Chat on August 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*