# Truth vs Rock 101.5

The clearest difference is in-app purchases: Rock 101.5 at none against Truth's 1. Truth's advantage is update cadence (weekly vs every 3 months) and iOS requirement (10.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Truth sells 1 one-off in-app purchase. Rock 101.5 asks for nothing beyond the download.

Truth ships an update weekly, Rock 101.5 every 3 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Truth | Rock 101.5 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/truth-o-meter/id1449410151/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 10 MB |
| Requires iOS | **10.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Joachim Neumann](https://appshunter.io/developer/741515887) | [Alan Usher](https://appshunter.io/developer/903377798) |

## What reviewers say

### Truth

[App page](https://appshunter.io/ios/app/truth-o-meter/id1449410151)

This application simulates the detection of truthfulness in statements. It offers a playful way to engage with information and assess its validity.

**Highlights:** Simulates truth detection, Engages with information, Assesses statement validity, Playful interaction

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Customisation of texts | $0.99 | one-time |


### Rock 101.5

[App page](https://appshunter.io/ios/app/rock-1015/id6764072233)

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

**In-app purchases:** none


## Frequently asked questions

### Is Truth free?

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

### Is Rock 101.5 free?

Rock 101.5 is free to download, with no in-app purchases.

### Do Truth or Rock 101.5 have ads?

Neither Truth nor Rock 101.5 shows ads.

### Which is updated more often, Truth or Rock 101.5?

Truth ships an update weekly, and Rock 101.5 every 3 months. Most recently, Truth was updated on October 24, 2026 and Rock 101.5 on October 28, 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.*