# X黑洞 vs Swapsy

The clearest difference is ads: X黑洞 at none against Swapsy's shown. X黑洞 also leads on update cadence (daily vs every 2 weeks) and iOS requirement (13.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. X黑洞 sells 4 in-app purchases, starting at $0.99 per month and Swapsy sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

X黑洞 ships an update daily, Swapsy every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | X黑洞 | Swapsy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 42 MB | 20 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [黎黎 席](https://appshunter.io/developer/1555182337) | [Dmitro Havrylenko](https://appshunter.io/developer/1817986037) |

## What reviewers say

### X黑洞

[App page](https://appshunter.io/ios/app/x/id6743829002)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $0.99 | per month |
| 连续包季 | $2.99 | per 3 months |
| 连续包年 | $3.99 | per year |
| 终身会员 | $5.99 | one-time |


### Swapsy

[App page](https://appshunter.io/ios/app/swapsy-currency-converter/id6761122169)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly with Free Trial | $2.99 | per 7 days |
| Yearly with Free Trial | $19.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is X黑洞 free?

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

### Is Swapsy free?

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

### Do X黑洞 or Swapsy have ads?

Swapsy shows ads; X黑洞 does not.

### Which is updated more often, X黑洞 or Swapsy?

X黑洞 ships an update daily, and Swapsy every 2 weeks. Most recently, X黑洞 was updated on October 30, 2026 and Swapsy 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.*