# ZEM RSP vs TKD Hub

The clearest difference is in-app purchases: ZEM RSP at none against TKD Hub's 3. ZEM RSP also leads on iOS requirement (8.0 vs 15.0). TKD Hub's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. TKD Hub sells 3 one-off in-app purchases. ZEM RSP asks for nothing beyond the download.

ZEM RSP ships an update monthly, TKD Hub weekly. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ZEM RSP | TKD Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tkd-hub/id6761325869/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free |
| Size | 3 MB | 21 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [zemita.co., Ltd.](https://appshunter.io/developer/1144444571) | [AMIR BADNJEVIC](https://appshunter.io/developer/1888919438) |

## What reviewers say

### ZEM RSP

[App page](https://appshunter.io/ios/app/zem-rsp/id1148476895)

**Features:** macOS Compatibility

**In-app purchases:** none


### TKD Hub

[App page](https://appshunter.io/ios/app/tkd-hub/id6761325869)

This app consolidates Taekwondo events and athlete rankings from various platforms into a single, user-friendly interface. Discover competitions, track rankings, and receive timely notifications without needing an account. It's designed for athletes, parents, and coaches.

**Highlights:** Browse Taekwondo competitions, Filter events by country and type, View athlete rankings and seedings, Save favorite events and rankings, Receive event and ranking notifications, No account required, Ad-free and tracking-free experience

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


## Frequently asked questions

### Is ZEM RSP free?

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

### Is TKD Hub free?

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

### Do ZEM RSP or TKD Hub have ads?

Neither ZEM RSP nor TKD Hub shows ads.

### Which is updated more often, ZEM RSP or TKD Hub?

ZEM RSP ships an update monthly, and TKD Hub weekly. Most recently, ZEM RSP was updated on October 17, 2026 and TKD Hub on October 15, 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.*