# Vibra Test vs ChatLLM

The clearest difference is rating: ChatLLM at 4.9 against Vibra Test's 3.5. ChatLLM also leads on review sentiment (64% vs 25%) and update cadence (every 4 days vs every 18 months). Vibra Test's advantage is in-app purchases (none vs 3) and iOS requirement (7.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ChatLLM sells 3 in-app purchases, starting at $9.99 per month. Vibra Test asks for nothing beyond the download.

ChatLLM holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: ChatLLM has 3.9K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 25% of Vibra Test's written reviews are positive against 64% of ChatLLM's.

Vibra Test ships an update every 18 months, ChatLLM every 4 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Vibra Test | ChatLLM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/vibra-test/id458780469/reviews) | **[4.9 (3.9K ratings)](https://appshunter.io/ios/app/chatllm-ai-chat-bot-and-agent/id6502844681/reviews)** |
| Number of ratings | 2 | **3.9K** |
| Positive reviews | 25.0% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 days** |
| Monetization | **Free** | Subscription |
| Size | 10 MB | 125 MB |
| Requires iOS | **7.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 12+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [Abacus.AI](https://appshunter.io/developer/1747006654) |

## What reviewers say

### Vibra Test

[App page](https://appshunter.io/ios/app/vibra-test/id458780469)

This tool helps assess the vibration severity of rotating machinery according to ISO 10816-03 standards. Users input machine power, foundation type, and vibration velocity to determine the operating condition, displayed in color-coded zones.

**Highlights:** Vibration severity testing, ISO 10816-03 compliance, Machine power selection, Foundation type selection, Color-coded operating zones, Metric/Imperial units, Result sharing via email

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ChatLLM

[App page](https://appshunter.io/ios/app/chatllm-ai-chat-bot-and-agent/id6502844681)

This app integrates multiple advanced AI models for text, voice, image, and video generation. It offers an autonomous AI agent for complex task automation and real-time meeting transcription with AI insights. Personalization options and deep research capabilities are also included.

**Highlights:** Autonomous AI Agent for task completion, Real-time meeting transcription and summaries, Multi-modal AI chat (text, voice, image, video), Deep web research with source citations, Code execution and debugging, Document analysis and summarization, Personalization with custom instructions and memory

**Features:** Safari Extension, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Monthly subscription | $9.99 | per month |
| Pro Tier | $19.99 | per month |

**What reviewers like**

- 💰 Cheap and powerful
- 🔥 Amazing best on the market by far
- 🔥 Abacus ai - Absolutely fabulous tool great work horse, The best value on the market
- 🔥 The best of AI capabilities into a single, seamless platform!
- 🔥 Super impressive app

**What reviewers complain about**

- 🚫 No account creation
- 📏 Can't adjust font size
- 🚫 Doesn't show routing. Doesn't transcribe audio
- 🐛 Voice chat is not transcribing. I need it. Sometimes I can reenter the thread and it will be there, and then vanish!
- 🚫 Function but ugly and missing clean ui/ux design

**Reported bugs**

- Voice chat is not transcribing
- Chats disappearing after re-entering the thread
- App freezing or becoming laggy when generating responses on mobile
- Voice chat not working
- App crashing on mobile

**Requested features**

- Add transcript to the headphone mode
- Rename a thread
- Add execution time and other metrics for each request
- Indicate which LLM served the request when using routeLLM
- Add an iPad version


## Frequently asked questions

### Is Vibra Test free?

Vibra Test is free to download, with no in-app purchases.

### Is ChatLLM free?

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

### Which has better reviews, Vibra Test or ChatLLM?

ChatLLM is rated higher. Vibra Test averages 3.5 out of 5 from 2 ratings, while ChatLLM averages 4.9 from 3.9K ratings.

### Do Vibra Test or ChatLLM have ads?

Neither Vibra Test nor ChatLLM shows ads.

### Which is updated more often, Vibra Test or ChatLLM?

Vibra Test ships an update every 18 months, and ChatLLM every 4 days. Most recently, Vibra Test was updated on November 1, 2026 and ChatLLM on November 5, 2026.

---

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