# Sphere vs Local Inference OnDevice Agent

The clearest difference is in-app purchases: Local Inference OnDevice Agent at none against Sphere's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sphere sells 2 in-app purchases, starting at $7.99 per month. Local Inference OnDevice Agent asks for nothing beyond the download.

Sphere ships an update every 3 weeks, Local Inference OnDevice Agent every 2 weeks. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sphere | Local Inference OnDevice Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/local-inference-ondevice-agent/id6794007626/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 57 MB | 52 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [Rajesh Cherukuri](https://appshunter.io/developer/6781198482) | [Sameer Shanbhag](https://appshunter.io/developer/6794007628) |

## What reviewers say

### Sphere

[App page](https://appshunter.io/ios/app/sphere-multi-model-ai-chat/id6781198480)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $7.99 | per month |
| Premium Yearly | $54.99 | per year |


### Local Inference OnDevice Agent

[App page](https://appshunter.io/ios/app/local-inference-ondevice-agent/id6794007626)

This app provides an AI chat experience that runs entirely on your device, ensuring your conversations remain private and offline. It offers various AI models, integrates with device tools, and allows for custom API key usage.

**Highlights:** Runs entirely on-device, Fully offline functionality, Zero data collection, Optional API key integration, Tools: calculator, web search, webpage reading, Contacts & calendar integration, Vision models for photo analysis, On-device text-to-speech

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

**In-app purchases:** none


## Frequently asked questions

### Is Sphere free?

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

### Is Local Inference OnDevice Agent free?

Local Inference OnDevice Agent is free to download, with no in-app purchases.

### Do Sphere or Local Inference OnDevice Agent have ads?

Neither Sphere nor Local Inference OnDevice Agent shows ads.

### Which is updated more often, Sphere or Local Inference OnDevice Agent?

Sphere ships an update every 3 weeks, and Local Inference OnDevice Agent every 2 weeks. Most recently, Sphere was updated on October 15, 2026 and Local Inference OnDevice Agent on October 9, 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.*