# AI Smart Chat | AI Assistant vs SPHYNX Vault

The clearest difference is ads: AI Smart Chat | AI Assistant at none against SPHYNX Vault's shown. AI Smart Chat | AI Assistant also leads on ratings volume (9 vs 2). SPHYNX Vault's advantage is update cadence (weekly vs every 3 weeks). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. AI Smart Chat | AI Assistant sells 2 in-app purchases, starting at $4.99 per month and SPHYNX Vault sells 8 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for AI Smart Chat | AI Assistant against 5.0 for SPHYNX Vault. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

AI Smart Chat | AI Assistant ships an update every 3 weeks, SPHYNX Vault weekly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | AI Smart Chat | AI Assistant | SPHYNX Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (9 ratings)](https://appshunter.io/ios/app/ai-smart-chat-ai-assistant/id6737298647/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sphynx-vault/id6754172921/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 27 MB | 35 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Haven Tran](https://appshunter.io/developer/1291655261) | [HarmonizeOps LLC](https://appshunter.io/developer/1846892391) |

## What reviewers say

### AI Smart Chat | AI Assistant

[App page](https://appshunter.io/ios/app/ai-smart-chat-ai-assistant/id6737298647)

This AI-powered assistant offers instant answers, writing enhancements, math solving, and language translation. Chat with multiple advanced AI models simultaneously for diverse perspectives and personalized interactions. It's designed to boost productivity and creativity for users of all backgrounds.

**Highlights:** Dual AI chat (ChatGPT & Gemini), Instant answers and research, AI writing and grammar enhancement, Math solver with step-by-step solutions, Multi-language translation and learning, Customizable AI assistant tone and personality, No signup or registration required

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | per month |
| Full Access | $39.99 | per year |


### SPHYNX Vault

[App page](https://appshunter.io/ios/app/sphynx-vault/id6754172921)

Organize, create, and share text templates like AI prompts, emails, and scripts. Securely store your content with cross-platform sync and advanced search. Collaborate with teams using guild-based management and access controls.

**Highlights:** Create and organize text templates, Cross-platform cloud sync, Advanced search and filtering, Guild-based team management, Template fill with customizable fields, Enterprise-grade security

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Guild Bench Monthly | $19.99 | per month |
| Pro Yearly | $49.99 | per year |
| Guild Studio Monthly | $69.99 | per month |
| Guild Fellowship Monthly | $149.99 | per month |
| Guild Bench Annual | $199.99 | per year |
| Guild Sanctum Monthly | $399.99 | per month |
| Guild Studio Annual | $699.99 | per year |


## Frequently asked questions

### Is AI Smart Chat | AI Assistant free?

AI Smart Chat | AI Assistant is free to download, with in-app purchases available.

### Is SPHYNX Vault free?

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

### Which has better reviews, AI Smart Chat | AI Assistant or SPHYNX Vault?

SPHYNX Vault is rated higher. AI Smart Chat | AI Assistant averages 4.9 out of 5 from 9 ratings, while SPHYNX Vault averages 5.0 from 2 ratings.

### Do AI Smart Chat | AI Assistant or SPHYNX Vault have ads?

SPHYNX Vault shows ads; AI Smart Chat | AI Assistant does not.

### Which is updated more often, AI Smart Chat | AI Assistant or SPHYNX Vault?

AI Smart Chat | AI Assistant ships an update every 3 weeks, and SPHYNX Vault weekly. Most recently, AI Smart Chat | AI Assistant was updated on October 24, 2026 and SPHYNX Vault on October 22, 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.*