# One Degree Co vs Greystone

The clearest difference is in-app purchases: One Degree Co at none against Greystone's 3. One Degree Co also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Greystone sells 3 in-app purchases, starting at $17.99 per month. One Degree Co asks for nothing beyond the download.

One Degree Co ships an update every 3 weeks, Greystone every 3 months. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | One Degree Co | Greystone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 15 MB | 32 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emily Sudduth](https://appshunter.io/developer/1721274803) | [Greystone Theological Institute](https://appshunter.io/developer/1791639499) |

## What reviewers say

### One Degree Co

[App page](https://appshunter.io/ios/app/one-degree-co/id6575458808)

**In-app purchases:** none


### Greystone

[App page](https://appshunter.io/ios/app/greystone/id6740783023)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Greystone Monthly Membership | $17.99 | per month |
| Greystone Membership Plus | $29.99 | per month |
| Greystone Annual Membership | $197.99 | per year |


## Frequently asked questions

### Is One Degree Co free?

One Degree Co is free to download, with no in-app purchases.

### Is Greystone free?

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

### Do One Degree Co or Greystone have ads?

Neither One Degree Co nor Greystone shows ads.

### Which is updated more often, One Degree Co or Greystone?

One Degree Co ships an update every 3 weeks, and Greystone every 3 months. Most recently, One Degree Co was updated on October 16, 2026 and Greystone on October 11, 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.*