# KAST vs NullTrace

The clearest difference is update cadence: NullTrace at daily against KAST's every 2 weeks. NullTrace also leads on iOS requirement (13.0 vs 15.5). 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.

KAST ships an update every 2 weeks, NullTrace daily. The most recent releases landed on October 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | KAST | NullTrace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (277 ratings)](https://appshunter.io/ios/app/kast-global-usd-account/id6479701765/reviews)** | — |
| Number of ratings | **277** | — |
| Positive reviews | 56.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 445 MB | 51 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Troia Limited](https://appshunter.io/developer/1736962312) | [NullTrace LLC](https://appshunter.io/developer/1872799837) |

## What reviewers say

### KAST

[App page](https://appshunter.io/ios/app/kast-global-usd-account/id6479701765)

Manage stablecoins and spend them globally with a virtual or physical card. Enjoy instant card issuance, secure transactions, and worldwide ATM access. Track spending and deposit stablecoins easily.

**Highlights:** Spend stablecoins globally with KAST Card, Instant virtual card issuance, Add card to Apple/Google Wallet, Global ATM cash withdrawal, Secure stablecoin deposits, Real-time spending tracking

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 💳 Excellent crypto card
- 🚀 Fast and smooth payments
- 🌍 Global usability
- 💰 Good cashback and rewards
- 💡 Stablecoins made practical

**What reviewers complain about**

- 🔒 Account blocked/money held
- 📉 High FX/conversion fees
- 🚫 Unusable in some regions/states
- ❓ Lack of transparency
- 🚨 Fraudulent charges/unauthorized loss

**Reported bugs**

- App doesn't read digital CNH
- Account blocked without explanation
- Money held with no explanation
- Endless KYC process with repeated rejections
- Virtual card compromised with unauthorized international transactions

**Requested features**

- Add Arabic language support
- Allow receiving Pix from anyone
- Add Burkina Faso to identity verification countries
- Add Tunisia to country list for registration
- Add Bangladesh to country list for login/signup


### NullTrace

[App page](https://appshunter.io/ios/app/nulltrace/id6758411859)

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

**In-app purchases:** none


## Frequently asked questions

### Is KAST free?

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

### Is NullTrace free?

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

### Do KAST or NullTrace have ads?

Neither KAST nor NullTrace shows ads.

### Which is updated more often, KAST or NullTrace?

KAST ships an update every 2 weeks, and NullTrace daily. Most recently, KAST was updated on October 22, 2026 and NullTrace on October 8, 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.*