# Tension Lab vs Stringbed

The clearest difference is in-app purchases: Tension Lab at none against Stringbed's 1. Tension Lab also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Stringbed sells 1 one-off in-app purchase. Tension Lab asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Tension Lab | Stringbed |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 104 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SEOKWON KONG](https://appshunter.io/developer/6803808680) | [Laure Shin](https://appshunter.io/developer/6785226025) |

## 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


### Stringbed

[App page](https://appshunter.io/ios/app/stringbed-string-tension/id6812965445)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited answers | $14.99 | one-time |


## Frequently asked questions

### Is Tension Lab free?

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

### Is Stringbed free?

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

### Do Tension Lab or Stringbed have ads?

Neither Tension Lab nor Stringbed shows ads.

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

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