# YostNotes vs Sphere

The clearest difference is iOS requirement: Sphere at 16.4 against YostNotes's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. YostNotes sells 3 in-app purchases, starting at $14.99 per month and Sphere sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

YostNotes ships an update fortnightly, Sphere every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | YostNotes | Sphere |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 9 MB | 57 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Rick Yost](https://appshunter.io/developer/1384293049) | [Rajesh Cherukuri](https://appshunter.io/developer/6781198482) |

## What reviewers say

### YostNotes

[App page](https://appshunter.io/ios/app/yostnotes-ai-notes-and-audio/id6770078808)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $14.99 | per month |
| Annual | $169.99 | per year |
| 100 Minute Top-Up | $6.99 | one-time |


### 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 |
| --- | --- | --- |
| Sphere Pro: Compare AI Models | $7.99 | per month |
| Sphere Pro: Multi AI Copilot | $54.99 | per year |


## Frequently asked questions

### Is YostNotes free?

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

### Is Sphere free?

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

### Do YostNotes or Sphere have ads?

Neither YostNotes nor Sphere shows ads.

### Which is updated more often, YostNotes or Sphere?

YostNotes ships an update fortnightly, and Sphere every 3 weeks. Most recently, YostNotes was updated on October 28, 2026 and Sphere on October 31, 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.*