# TrustCheck AI vs String Tension Calc

The clearest difference is update cadence: String Tension Calc at every 3 weeks against TrustCheck AI's every 4 months. TrustCheck AI's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. TrustCheck AI sells 1 in-app purchase, starting at $3.99 per month and String Tension Calc sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

TrustCheck AI ships an update every 4 months, String Tension Calc every 3 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | TrustCheck AI | String Tension Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/trustcheck-ai/id6747942129/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 27 MB | 44 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Troxo Pty Ltd](https://appshunter.io/developer/1823503903) | [Vasilii Polovnikov](https://appshunter.io/developer/1716165883) |

## What reviewers say

### TrustCheck AI

[App page](https://appshunter.io/ios/app/trustcheck-ai/id6747942129)

Effortlessly verify the authenticity of images, text, links, and screenshots. Get instant analysis to detect AI generation, deepfakes, manipulation, and scams without needing technical expertise. This affordable app provides professional-grade insights at a fraction of the cost.

**Highlights:** AI content analysis, Image manipulation detection, Deepfake identification, Scam language detection, Link safety checks, Screenshot tampering analysis, Risk assessment and explanations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrustCheck AI Premium | $3.99 | per month |


### String Tension Calc

[App page](https://appshunter.io/ios/app/string-tension-calc/id6792709631)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |
| Premium | $3.99 | per month |
| Premium | $5.99 | per year |
| Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is TrustCheck AI free?

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

### Is String Tension Calc free?

String Tension Calc is free to download, with in-app purchases available.

### Do TrustCheck AI or String Tension Calc have ads?

Neither TrustCheck AI nor String Tension Calc shows ads.

### Which is updated more often, TrustCheck AI or String Tension Calc?

TrustCheck AI ships an update every 4 months, and String Tension Calc every 3 weeks. Most recently, TrustCheck AI was updated on October 24, 2026 and String Tension Calc on October 21, 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.*