# ZP 6.4 AMP vs Thunder DSP

The clearest difference is update cadence: Thunder DSP at every 5 days against ZP 6.4 AMP's every 9 months. ZP 6.4 AMP's advantage is iOS requirement (9.0 vs 11.0). 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.

ZP 6.4 AMP ships an update every 9 months, Thunder DSP every 5 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ZP 6.4 AMP | Thunder DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 days** |
| Size | 2 MB | 5 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Maslim Djanuanto](https://appshunter.io/developer/1521794441) | [AMERICAN PRO INTERNATIONAL CORP](https://appshunter.io/developer/1071760180) |

## What reviewers say

### ZP 6.4 AMP

[App page](https://appshunter.io/ios/app/zp-64-amp-15/id1565294157)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thunder DSP

[App page](https://appshunter.io/ios/app/thunder-dsp/id6744083152)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZP 6.4 AMP free?

ZP 6.4 AMP is free to download, with no in-app purchases.

### Is Thunder DSP free?

Thunder DSP is free to download, with no in-app purchases.

### Do ZP 6.4 AMP or Thunder DSP have ads?

Neither ZP 6.4 AMP nor Thunder DSP shows ads.

### Which is updated more often, ZP 6.4 AMP or Thunder DSP?

ZP 6.4 AMP ships an update every 9 months, and Thunder DSP every 5 days. Most recently, ZP 6.4 AMP was updated on October 27, 2026 and Thunder DSP on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*