# Tension Lab vs StringPing

The clearest difference is in-app purchases: Tension Lab at none against StringPing's 4. Tension Lab also leads on iOS requirement (15.1 vs 26.5). StringPing's advantage is update cadence (daily vs every 5 days). On price, ads and device support there is nothing between them.

Both are free to download. StringPing sells 4 one-off in-app purchases. Tension Lab asks for nothing beyond the download.

Tension Lab ships an update every 5 days, StringPing daily. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Tension Lab | StringPing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Daily** |
| Size | 104 MB | 6 MB |
| Requires iOS | **15.1** | 26.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SEOKWON KONG](https://appshunter.io/developer/6803808680) | [Korhan Pekun](https://appshunter.io/developer/6811897935) |

## What reviewers say

### Tension Lab

[App page](https://appshunter.io/ios/app/tension-lab-string-tension/id6803808678)

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

**In-app purchases:** none


### StringPing

[App page](https://appshunter.io/ios/app/stringping/id6811897693)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Overgrip | $1.99 | one-time |
| Can of Tennis Balls | $4.99 | one-time |
| Set of Strings | $9.99 | one-time |
| Reel of String | $19.99 | one-time |


## Frequently asked questions

### Is Tension Lab free?

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

### Is StringPing free?

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

### Do Tension Lab or StringPing have ads?

Neither Tension Lab nor StringPing shows ads.

### Which is updated more often, Tension Lab or StringPing?

Tension Lab ships an update every 5 days, and StringPing daily. Most recently, Tension Lab was updated on November 8, 2026 and StringPing on November 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.*