# OSC Members vs CharlaViva

The clearest difference is in-app purchases: OSC Members at none against CharlaViva's 1. OSC Members also leads on iOS requirement (13.0 vs 15.0). CharlaViva's advantage is ads (none vs shown) and update cadence (every 5 days vs every 7 months). On price and device support there is nothing between them.

Both are free to download. CharlaViva sells 1 in-app purchase, starting at $9.99 per month. OSC Members asks for nothing beyond the download.

OSC Members ships an update every 7 months, CharlaViva every 5 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OSC Members | CharlaViva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (9 ratings)](https://appshunter.io/ios/app/osc-members/id1584595700/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 39 MB | 21 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Orlando Science Center, Inc.](https://appshunter.io/developer/1449053369) | [Vertotech LLC](https://appshunter.io/developer/6773523386) |

## What reviewers say

### OSC Members

[App page](https://appshunter.io/ios/app/osc-members/id1584595700)

Access your digital membership card instantly with this official app. It provides quick entry and information for Orlando Science Center members.

**Highlights:** Digital eMembership card, Instant access, Official member app, Orlando Science Center

**Features:** macOS Compatibility

**In-app purchases:** none


### CharlaViva

[App page](https://appshunter.io/ios/app/charlaviva/id6804342665)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level 3 — Live Conversation | $9.99 | per month |


## Frequently asked questions

### Is OSC Members free?

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

### Is CharlaViva free?

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

### Do OSC Members or CharlaViva have ads?

OSC Members shows ads; CharlaViva does not.

### Which is updated more often, OSC Members or CharlaViva?

OSC Members ships an update every 7 months, and CharlaViva every 5 days. Most recently, OSC Members was updated on November 3, 2026 and CharlaViva on October 25, 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.*