# String Tension AI vs String Tension Meter

The clearest difference is ads: String Tension AI at none against String Tension Meter's shown. String Tension Meter's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. String Tension AI sells 3 in-app purchases, starting at $4.99 per month and String Tension Meter sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | String Tension AI | String Tension Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/string-tension-ai/id6763697805/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | — |
| Monetization | Freemium | — |
| Size | 33 MB | 32 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trader Prosperity LLC](https://appshunter.io/developer/1895443729) | [Tzu Yu Chou](https://appshunter.io/developer/1887902380) |

## What reviewers say

### String Tension AI

[App page](https://appshunter.io/ios/app/string-tension-ai/id6763697805)

This app uses your iPhone's microphone to measure the tension of your racquet strings. It tracks tension decay over time, offers personalized restring recommendations, and provides a comprehensive string toolkit for serious players.

**Highlights:** Measure string tension with iPhone microphone, Track tension decay over time, Personalized restring recommendations, String database and player setups, Playing session tracking, Cost tracking for restringing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO | $4.99 | per month |
| Annual PRO | $29.99 | per year |
| Lifetime PRO | $69.99 | one-time |


### String Tension Meter

[App page](https://appshunter.io/ios/app/string-tension-meter/id6782812710)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $5.99 | per year |


## Frequently asked questions

### Is String Tension AI free?

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

### Is String Tension Meter free?

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

### Do String Tension AI or String Tension Meter have ads?

String Tension Meter shows ads; String Tension AI does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*