# Spike Studio vs Ultra AI Chat

The clearest difference is rating: Ultra AI Chat at 5.0 against Spike Studio's 3.1. Spike Studio's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Ultra AI Chat sells 2 in-app purchases, starting at $4.99 per 7 days. Spike Studio asks for nothing beyond the download.

Ultra AI Chat holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Spike Studio has 11 ratings behind it against 1, so its average is the more settled of the two.

Spike Studio ships an update every 8 days, Ultra AI Chat weekly. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Spike Studio | Ultra AI Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (11 ratings)](https://appshunter.io/ios/app/spike-studio/id6749781844/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ultra-ai-chat/id6754924813/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 118 MB | 43 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Jan Stellmann](https://appshunter.io/developer/1832066618) | [Richie Fredicson](https://appshunter.io/developer/1507396317) |

## What reviewers say

### Spike Studio

[App page](https://appshunter.io/ios/app/spike-studio/id6749781844)

Run powerful AI models locally on your device without cloud dependence. Enjoy private, fast responses and full control over your AI experience. Ideal for developers and AI enthusiasts seeking unlimited model usage and zero tracking.

**Highlights:** Run AI models locally, No cloud dependence, Private data processing, Zero cloud costs, Unlimited model usage, Instant responses

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Ultra AI Chat

[App page](https://appshunter.io/ios/app/ultra-ai-chat/id6754924813)

This app offers a comprehensive AI experience, allowing natural conversations, real-time voice interaction, image generation, and task completion. It integrates multiple advanced AI models into a single, user-friendly interface for various needs.

**Highlights:** Advanced AI model conversations, Real-time voice interaction, AI-powered task completion, Instant image generation, Document and video summarization, Image analysis and questioning, Cross-device synchronization

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ultra AI | $4.99 | per 7 days |
| Ultra AI Plus | $129.99 | per year |


## Frequently asked questions

### Is Spike Studio free?

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

### Is Ultra AI Chat free?

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

### Which has better reviews, Spike Studio or Ultra AI Chat?

Ultra AI Chat is rated higher. Spike Studio averages 3.1 out of 5 from 11 ratings, while Ultra AI Chat averages 5.0 from 1 ratings.

### Do Spike Studio or Ultra AI Chat have ads?

Ultra AI Chat shows ads; Spike Studio does not.

### Which is updated more often, Spike Studio or Ultra AI Chat?

Spike Studio ships an update every 8 days, and Ultra AI Chat weekly. Most recently, Spike Studio was updated on October 6, 2026 and Ultra AI Chat on October 15, 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.*