# TS vs ONE LDN

TS and ONE LDN are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | TS | ONE LDN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 52 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Third Space](https://appshunter.io/developer/1706076679) | [ONE LDN](https://appshunter.io/developer/1833974896) |

## What reviewers say

### TS

[App page](https://appshunter.io/ios/app/ts-instructors/id1441534374)

**Features:** Vision Pro support

**In-app purchases:** none


### ONE LDN

[App page](https://appshunter.io/ios/app/one-ldn/id6751208228)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is TS free?

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

### Is ONE LDN free?

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

### Do TS or ONE LDN have ads?

Neither TS nor ONE LDN shows ads.

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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.*