# TerribleSync vs WorldWandering

The clearest difference is in-app purchases: TerribleSync at none against WorldWandering's 1. TerribleSync also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.6). WorldWandering's advantage is update cadence (fortnightly vs every 35 months). On price and device support there is nothing between them.

Both are free to download. WorldWandering sells 1 one-off in-app purchase. TerribleSync asks for nothing beyond the download.

TerribleSync ships an update every 35 months, WorldWandering fortnightly. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | TerribleSync | WorldWandering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/terriblesync/id1109759662/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 1 MB | 7 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Roth](https://appshunter.io/developer/448057425) | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) |

## What reviewers say

### TerribleSync

[App page](https://appshunter.io/ios/app/terriblesync/id1109759662)

Control the tempo of music hardware like synthesizers and drum machines using your iPhone or iPad. Features include tap tempo, precise dial adjustment, and buttons for performance effects. Requires a 3.5mm audio cable for connection.

**Highlights:** Tap tempo, Rotary tempo dial, Pause/mute button, Performance effect buttons, Clear interface, Open source project

**Features:** macOS Compatibility

**In-app purchases:** none


### WorldWandering

[App page](https://appshunter.io/ios/app/worldwandering/id6816787152)

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $3.99 | one-time |


## Frequently asked questions

### Is TerribleSync free?

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

### Is WorldWandering free?

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

### Do TerribleSync or WorldWandering have ads?

WorldWandering shows ads; TerribleSync does not.

### Which is updated more often, TerribleSync or WorldWandering?

TerribleSync ships an update every 35 months, and WorldWandering fortnightly. Most recently, TerribleSync was updated on November 2, 2026 and WorldWandering on November 1, 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.*