# OASYS TA vs Sky Jana Purchasing

The clearest difference is update cadence: Sky Jana Purchasing at every 5 months against OASYS TA's every 31 months. OASYS TA's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OASYS TA ships an update every 31 months, Sky Jana Purchasing every 5 months. The most recent releases landed on October 4, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | OASYS TA | Sky Jana Purchasing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 5 months** |
| Size | 61 MB | 25 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OASYS InfoTech](https://appshunter.io/developer/1072284692) | [Sky Software](https://appshunter.io/developer/1461696206) |

## What reviewers say

### OASYS TA

[App page](https://appshunter.io/ios/app/oasys-ta/id1412503514)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sky Jana Purchasing

[App page](https://appshunter.io/ios/app/sky-jana-purchasing/id1494282972)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OASYS TA free?

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

### Is Sky Jana Purchasing free?

Sky Jana Purchasing is free to download, with no in-app purchases.

### Do OASYS TA or Sky Jana Purchasing have ads?

Neither OASYS TA nor Sky Jana Purchasing shows ads.

### Which is updated more often, OASYS TA or Sky Jana Purchasing?

OASYS TA ships an update every 31 months, and Sky Jana Purchasing every 5 months. Most recently, OASYS TA was updated on October 4, 2026 and Sky Jana Purchasing on November 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.*