# Causality vs Rescue Tech by SkillAbove

The clearest difference is update cadence: Causality at fortnightly against Rescue Tech by SkillAbove's every 3 months. Rescue Tech by SkillAbove's advantage is iOS requirement (13.0 vs 16.0). 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.

Causality ships an update fortnightly, Rescue Tech by SkillAbove every 3 months. The most recent releases landed on November 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Causality | Rescue Tech by SkillAbove |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/causality-physdigital-nexus/id1659176432/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | — |
| Size | 13 MB | 23 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Clever Guerrilla Inc.](https://appshunter.io/developer/1745793786) | [Diego Gentner](https://appshunter.io/developer/1686293703) |

## What reviewers say

### Causality

[App page](https://appshunter.io/ios/app/causality-physdigital-nexus/id1659176432)

Discover and interact with physical products and locations linked to digital experiences. Use NFC tags to unlock engaging activations that bridge the physical and digital worlds. No account or complex setup required, just tap and explore.

**Highlights:** Discover NFC-tagged products, Access IRL waypoints, Engage in digital activations, Connect physical and digital, No account creation needed

**Features:** macOS Compatibility

**In-app purchases:** none


### Rescue Tech by SkillAbove

[App page](https://appshunter.io/ios/app/rescue-tech-by-skillabove/id6450159711)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Causality free?

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

### Is Rescue Tech by SkillAbove free?

Rescue Tech by SkillAbove is free to download, with no in-app purchases.

### Do Causality or Rescue Tech by SkillAbove have ads?

Neither Causality nor Rescue Tech by SkillAbove shows ads.

### Which is updated more often, Causality or Rescue Tech by SkillAbove?

Causality ships an update fortnightly, and Rescue Tech by SkillAbove every 3 months. Most recently, Causality was updated on November 3, 2026 and Rescue Tech by SkillAbove on October 6, 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.*