# KasaDefterim vs GreyOSFin

The clearest difference is update cadence: GreyOSFin at every 4 days against KasaDefterim's every 4 weeks. GreyOSFin also leads on iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KasaDefterim sells 4 in-app purchases, starting at $1.99 per 7 days 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.

KasaDefterim ships an update every 4 weeks, GreyOSFin every 4 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | KasaDefterim | GreyOSFin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Size | 26 MB | 10 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Velit Tolga MUSTO](https://appshunter.io/developer/1865729768) | [GreyGroupe](https://appshunter.io/developer/6813870418) |

## What reviewers say

### KasaDefterim

[App page](https://appshunter.io/ios/app/kasadefterim-budget-tracker/id6757275032)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium – Haftalık | $1.99 | per 7 days |
| Monthly Premium Plan. | $2.99 | per month |
| Yearly Access | $29.99 | per year |
| Ömür Boyu | $49.99 | one-time |


### 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 KasaDefterim free?

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

### Is GreyOSFin free?

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

### Do KasaDefterim or GreyOSFin have ads?

Neither KasaDefterim nor GreyOSFin shows ads.

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

KasaDefterim ships an update every 4 weeks, and GreyOSFin every 4 days. Most recently, KasaDefterim was updated on November 9, 2026 and GreyOSFin on November 10, 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.*