# OG.com vs MassPredict

The clearest difference is in-app purchases: OG.com at none against MassPredict's 2. OG.com also leads on chart position (#66 vs unranked). MassPredict's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. MassPredict sells 2 in-app purchases, starting at $9.99 per month. OG.com asks for nothing beyond the download.

OG.com ships an update weekly, MassPredict every 6 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OG.com | MassPredict |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.8K ratings)](https://appshunter.io/ios/app/ogcom-rip-cardstrade-events/id6757954676/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 50.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free | — |
| Best chart rank | **#66** | — |
| Size | 198 MB | 6 MB |
| Requires iOS | 16.4 | **16** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [OG Markets Limited](https://appshunter.io/developer/1869912847) | [MassPredict LLC](https://appshunter.io/developer/1888326728) |

## What reviewers say

### OG.com

[App page](https://appshunter.io/ios/app/ogcom-rip-cardstrade-events/id6757954676)

**Currently charting:** #66 Top Free · Finance (US App Store)

Engage in prediction markets for sports, politics, and culture. Collect and trade real, graded sports cards with instant buyback options. Your first pack is free.

**Highlights:** Predict sports, politics, and economic outcomes, Rip real, graded sports card packs, Instant card buyback at market price, Social trading and leaderboards, AI-powered trading co-pilot, Trade crypto with leverage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### MassPredict

[App page](https://appshunter.io/ios/app/masspredict/id6761592029)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Raven Aⁱ | $9.99 | per month |
| Raven Aⁱ Annual | $79.99 | per year |


## Frequently asked questions

### Is OG.com free?

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

### Is MassPredict free?

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

### Do OG.com or MassPredict have ads?

Neither OG.com nor MassPredict shows ads.

### Which is updated more often, OG.com or MassPredict?

OG.com ships an update weekly, and MassPredict every 6 days. Most recently, OG.com was updated on October 31, 2026 and MassPredict 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.*