# OLM Marker vs Quizgrade

The clearest difference is in-app purchases: OLM Marker at none against Quizgrade's 2. Quizgrade's advantage is update cadence (every 8 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Quizgrade sells 2 one-off in-app purchases. OLM Marker asks for nothing beyond the download.

OLM Marker ships an update every 3 weeks, Quizgrade every 8 days. The most recent releases landed on September 20, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | OLM Marker | Quizgrade |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 8 MB | 115 MB |
| Requires iOS | 13.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tho Ha Duc](https://appshunter.io/developer/1636633233) | [An Trinh](https://appshunter.io/developer/1645071825) |

## What reviewers say

### OLM Marker

[App page](https://appshunter.io/ios/app/olm-marker/id1636633231)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quizgrade

[App page](https://appshunter.io/ios/app/quizgrade/id1645071823)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $3.99 | one-time |
| Phiên bản Premium | $5.99 | one-time |


## Frequently asked questions

### Is OLM Marker free?

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

### Is Quizgrade free?

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

### Do OLM Marker or Quizgrade have ads?

Neither OLM Marker nor Quizgrade shows ads.

### Which is updated more often, OLM Marker or Quizgrade?

OLM Marker ships an update every 3 weeks, and Quizgrade every 8 days. Most recently, OLM Marker was updated on September 20, 2026 and Quizgrade on May 17, 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.*