# Pi, your personal AI vs Lightvessel

The clearest difference is rating: Lightvessel at 5.0 against Pi, your personal AI's 4.4. Lightvessel also leads on review sentiment (100% vs 60%). Pi, your personal AI's advantage is in-app purchases (none vs 2) and ratings volume (2.5K vs 1). On price and ads there is nothing between them.

Both are free to download. Lightvessel sells 2 in-app purchases, starting at $7.99 per month. Pi, your personal AI asks for nothing beyond the download.

Lightvessel holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Pi, your personal AI has 2.5K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Pi, your personal AI's written reviews are positive against 100% of Lightvessel's.

Pi, your personal AI ships an update every 2 days, Lightvessel weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pi, your personal AI | Lightvessel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (2.5K ratings)](https://appshunter.io/ios/app/pi-your-personal-ai/id6445815935/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lightvessel/id6800191641/reviews)** |
| Number of ratings | **2.5K** | 1 |
| Positive reviews | 60.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | **Free** | Freemium |
| Size | 170 MB | 9 MB |
| Requires iOS | **16** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Inflection AI](https://appshunter.io/developer/1685844497) | [晓航 王](https://appshunter.io/developer/6800036217) |

## What reviewers say

### Pi, your personal AI

[App page](https://appshunter.io/ios/app/pi-your-personal-ai/id6445815935)

This AI companion offers a supportive space for conversations, helping you explore ideas, process difficult topics, or simply have someone to listen. It adapts to your needs, providing assistance with decision-making, learning, and inspiration.

**Highlights:** Personalized AI conversations, Voice mode for live interaction, Idea exploration and brainstorming, Decision-making support, Learning and language practice, Emotional support and venting

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🤖 Realistic and natural conversations
- 💬 Empathetic and supportive responses
- 🧠 Impressive knowledge and insights
- 🤝 Feels like talking to a friend
- 🆓 Free and no ads

**What reviewers complain about**

- 🤯 Occasional memory lapses and inconsistencies
- 🚫 Strict content restrictions leading to suspensions
- 🔇 Voice feature issues and bugs
- 🔍 Difficulty deleting or organizing conversations

**Reported bugs**

- Frequent freezes and unresponsiveness
- Inconsistent behavior with voice and text inputs
- Sync issues between web and mobile versions

**Requested features**

- Dark mode option
- Ability to save and revisit past conversations
- More voice options and customization
- Improved memory and consistency across conversations


### Lightvessel

[App page](https://appshunter.io/ios/app/lightvessel/id6800191641)

This AI companion helps you process emotions and reflect on your inner state. Engage in guided conversations, track your mood, and find calm with a virtual lighthouse. Save memories and receive gentle AI-generated replies.

**Highlights:** AI-powered conversations, Mood logging and pattern analysis, Guided breathing exercises, Digital drift bottle for messages, On-device data storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lightvessel Premium(Monthly) | $7.99 | per month |
| Lightvessel Premium(Yearly) | $69.99 | per year |


## Frequently asked questions

### Is Pi, your personal AI free?

Pi, your personal AI is free to download, with no in-app purchases.

### Is Lightvessel free?

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

### Which has better reviews, Pi, your personal AI or Lightvessel?

Lightvessel is rated higher. Pi, your personal AI averages 4.4 out of 5 from 2.5K ratings, while Lightvessel averages 5.0 from 1 ratings.

### Do Pi, your personal AI or Lightvessel have ads?

Neither Pi, your personal AI nor Lightvessel shows ads.

### Which is updated more often, Pi, your personal AI or Lightvessel?

Pi, your personal AI ships an update every 2 days, and Lightvessel weekly. Most recently, Pi, your personal AI was updated on November 3, 2026 and Lightvessel on October 31, 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.*