# Synlab Events vs Join OPPA

The clearest difference is update cadence: Synlab Events at every 5 days against Join OPPA's fortnightly. Join OPPA's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Synlab Events ships an update every 5 days, Join OPPA fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Synlab Events | Join OPPA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 43 MB | 37 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Happenee s.r.o.](https://appshunter.io/developer/1466264324) | [OPPA MARKETPLACE SP Z O O](https://appshunter.io/developer/6791788674) |

## What reviewers say

### Synlab Events

[App page](https://appshunter.io/ios/app/synlab-events/id6745472792)

**Features:** macOS Compatibility

**In-app purchases:** none


### Join OPPA

[App page](https://appshunter.io/ios/app/join-oppa/id6791788672)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Synlab Events free?

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

### Is Join OPPA free?

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

### Do Synlab Events or Join OPPA have ads?

Neither Synlab Events nor Join OPPA shows ads.

### Which is updated more often, Synlab Events or Join OPPA?

Synlab Events ships an update every 5 days, and Join OPPA fortnightly. Most recently, Synlab Events was updated on October 25, 2026 and Join OPPA on October 24, 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.*