# TSS vs Lisa Chat

The clearest difference is in-app purchases: TSS at none against Lisa Chat's 4. TSS also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Lisa Chat sells 4 in-app purchases, starting at $5.99 per 7 days. TSS asks for nothing beyond the download.

TSS ships an update every 3 weeks, Lisa Chat monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | TSS | Lisa Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (891 ratings)](https://appshunter.io/ios/app/lisa-chat-ai-bot-assistant/id6448847169/reviews)** |
| Number of ratings | — | **891** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 113 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Gaurav Hargude](https://appshunter.io/developer/1552363704) | [Convert Software](https://appshunter.io/developer/1649777761) |

## What reviewers say

### TSS

[App page](https://appshunter.io/ios/app/tss-pm/id6444050118)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lisa Chat

[App page](https://appshunter.io/ios/app/lisa-chat-ai-bot-assistant/id6448847169)

This AI chatbot provides mobile access to advanced language models for various tasks. It assists with writing, content creation, coding, translation, and general inquiries, prioritizing ease of use and shortcuts for daily assistance.

**Highlights:** Access GPT-4 and GPT-3.5 Turbo APIs, Essay writing assistance, Social media content creation, Coding and translation help, Email drafting and article writing, Poetry and lyric generation

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly ChatGPT | $5.99 | per 7 days |
| Monthly ChatGPT | $14.99 | per month |
| Annual ChatGPT | $29.99 | per year |
| Lifetime ChatGPT | $39.99 | one-time |

**What reviewers like**

- 👍 Great app
- 💡 Useful AI assistant
- 👍 Love the app

**What reviewers complain about**

- 🐛 Crashes frequently
- 🔒 Subscription issues
- 🐛 Doesn't open at all
- 🔒 Misleading advertising

**Reported bugs**

- Immediate crashes on opening
- Subscription restoration problems
- Incompatibility with some devices

**Requested features**

- Improve stability and reliability
- Provide more transparent pricing information
- Enhance AI capabilities and responses


## Frequently asked questions

### Is TSS free?

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

### Is Lisa Chat free?

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

### Do TSS or Lisa Chat have ads?

Lisa Chat shows ads; TSS does not.

### Which is updated more often, TSS or Lisa Chat?

TSS ships an update every 3 weeks, and Lisa Chat monthly. Most recently, TSS was updated on November 3, 2026 and Lisa Chat on November 3, 2026.

---

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