# ERP Tunable White vs Chartboost Ad Preview

The clearest difference is ads: ERP Tunable White at none against Chartboost Ad Preview's shown. ERP Tunable White also leads on iOS requirement (13.0 vs 15.6). Chartboost Ad Preview's advantage is update cadence (every 6 weeks vs every 4 months). On price, 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.

ERP Tunable White ships an update every 4 months, Chartboost Ad Preview every 6 weeks. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ERP Tunable White | Chartboost Ad Preview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 2 MB | 17 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erp Power, LLC](https://appshunter.io/developer/1630668225) | [Chartboost, Inc.](https://appshunter.io/developer/600625252) |

## What reviewers say

### ERP Tunable White

[App page](https://appshunter.io/ios/app/erp-tunable-white/id1630668223)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chartboost Ad Preview

[App page](https://appshunter.io/ios/app/chartboost-ad-preview/id6748213283)

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

**In-app purchases:** none


## Frequently asked questions

### Is ERP Tunable White free?

ERP Tunable White is free to download, with no in-app purchases.

### Is Chartboost Ad Preview free?

Chartboost Ad Preview is free to download, with no in-app purchases.

### Do ERP Tunable White or Chartboost Ad Preview have ads?

Chartboost Ad Preview shows ads; ERP Tunable White does not.

### Which is updated more often, ERP Tunable White or Chartboost Ad Preview?

ERP Tunable White ships an update every 4 months, and Chartboost Ad Preview every 6 weeks. Most recently, ERP Tunable White was updated on September 17, 2026 and Chartboost Ad Preview on September 13, 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.*