# MERLION vs RosProm25

The clearest difference is iOS requirement: MERLION at 11.0 against RosProm25's 15.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

MERLION ships an update weekly, RosProm25 every 11 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | MERLION | RosProm25 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | Free | — |
| Size | 41 MB | 49 MB |
| Requires iOS | **11.0** | 15.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [S-Crypto](https://appshunter.io/developer/420616448) | [sk-informica](https://appshunter.io/developer/1649942846) |

## What reviewers say

### MERLION

[App page](https://appshunter.io/ios/app/merlion/id1245878577)

This app connects event attendees with event information and networking opportunities. Users can view event schedules, register for activities, interact with speakers, and connect with other participants.

**Highlights:** View past and upcoming events, Register for events and activities, Browse event program with filters, Create personalized event schedule, Ask questions to speakers, Participate in polls and quests, Network with other attendees

**Features:** macOS Compatibility

**In-app purchases:** none


### RosProm25

[App page](https://appshunter.io/ios/app/rosprom25/id6504350608)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MERLION free?

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

### Is RosProm25 free?

RosProm25 is free to download, with no in-app purchases.

### Do MERLION or RosProm25 have ads?

Neither MERLION nor RosProm25 shows ads.

### Which is updated more often, MERLION or RosProm25?

MERLION ships an update weekly, and RosProm25 every 11 days. Most recently, MERLION was updated on October 24, 2026 and RosProm25 on October 12, 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.*