# Defter vs GreyOSFin

The clearest difference is ads: GreyOSFin at none against Defter's shown. GreyOSFin also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Defter sells 2 in-app purchases, starting at $2.99 per month and GreyOSFin sells 2 in-app purchases, starting at $2.29 per month. Whichever you choose, the download price is not the number that matters.

Defter ships an update every 5 days, GreyOSFin every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Defter | GreyOSFin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 67 MB | 10 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kasim Ceylan](https://appshunter.io/developer/1826379160) | [GreyGroupe](https://appshunter.io/developer/6813870418) |

## What reviewers say

### Defter

[App page](https://appshunter.io/ios/app/defter-e/id6778815327)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| defter-e Pro Aylık | $2.99 | per month |
| defter-e Pro Yıllık | $34.99 | per year |


### GreyOSFin

[App page](https://appshunter.io/ios/app/greyosfin/id6813870416)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GreyOSFin Premium Monthly | $2.29 | per month |
| GreyOSFin Premium Yearly | $17.99 | per year |


## Frequently asked questions

### Is Defter free?

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

### Is GreyOSFin free?

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

### Do Defter or GreyOSFin have ads?

Defter shows ads; GreyOSFin does not.

### Which is updated more often, Defter or GreyOSFin?

Defter ships an update every 5 days, and GreyOSFin every 4 days. Most recently, Defter was updated on November 5, 2026 and GreyOSFin 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.*