# SPHERE AI vs BlablaChat

The clearest difference is in-app purchases: BlablaChat at none against SPHERE AI's 1. SPHERE AI's advantage is update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SPHERE AI sells 1 in-app purchase, starting at $19.99 per month. BlablaChat asks for nothing beyond the download.

SPHERE AI ships an update daily, BlablaChat every 3 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | SPHERE AI | BlablaChat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 175 MB | 22 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [SPHERE AI L.L.C](https://appshunter.io/developer/1808351483) | [Costantino Sias](https://appshunter.io/developer/1889524590) |

## What reviewers say

### SPHERE AI

[App page](https://appshunter.io/ios/app/sphere-ai/id6744594865)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPHERE Plus | $19.99 | per month |


### BlablaChat

[App page](https://appshunter.io/ios/app/blablachat/id6761422206)

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

**In-app purchases:** none


## Frequently asked questions

### Is SPHERE AI free?

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

### Is BlablaChat free?

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

### Do SPHERE AI or BlablaChat have ads?

Neither SPHERE AI nor BlablaChat shows ads.

### Which is updated more often, SPHERE AI or BlablaChat?

SPHERE AI ships an update daily, and BlablaChat every 3 weeks. Most recently, SPHERE AI was updated on October 7, 2026 and BlablaChat on October 14, 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.*