# National Sample vs Scalou

The clearest difference is iOS requirement: National Sample at 13.0 against Scalou's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

National Sample ships an update every 6 weeks, Scalou every 5 weeks. The most recent releases landed on June 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | National Sample | Scalou |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/national-sample/id1622551446/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 30 MB | 78 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DCore Software s.r.o.](https://appshunter.io/developer/1622551448) | [Scalou s.r.o.](https://appshunter.io/developer/1675100596) |

## What reviewers say

### National Sample

[App page](https://appshunter.io/ios/app/national-sample/id1622551446)

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**Highlights:** Earn rewards for opinions, Personalized surveys, Instant new survey notifications, Referral program for bonus rewards, Secure data protection

**In-app purchases:** none


### Scalou

[App page](https://appshunter.io/ios/app/scalou/id6445960671)

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

**In-app purchases:** none


## Frequently asked questions

### Is National Sample free?

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

### Is Scalou free?

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

### Do National Sample or Scalou have ads?

Neither National Sample nor Scalou shows ads.

### Which is updated more often, National Sample or Scalou?

National Sample ships an update every 6 weeks, and Scalou every 5 weeks. Most recently, National Sample was updated on June 22, 2026 and Scalou on September 18, 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.*