# areoHDR vs Vote Defender

The clearest difference is in-app purchases: Vote Defender at none against areoHDR's 2. Vote Defender also leads on update cadence (every 2 days vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. areoHDR sells 2 in-app purchases, starting at $1.99 per month. Vote Defender asks for nothing beyond the download.

areoHDR ships an update every 2 months, Vote Defender every 2 days. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | areoHDR | Vote Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/areohdr/id6738591240/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 48 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Holger Isenberg](https://appshunter.io/developer/1781325312) | [Rafael CONCEPCION](https://appshunter.io/developer/1818196626) |

## What reviewers say

### areoHDR

[App page](https://appshunter.io/ios/app/areohdr/id6738591240)

Experience real images from the Mars Perseverance Rover in high dynamic range (HDR) and color calibrated for human vision. Navigate through sols and images, zoom in, and access a Mars calendar. The free version offers access to the latest 200 sols.

**Highlights:** High Dynamic Range (HDR) Mars images, Color calibrated for human vision, Navigate sols and images, Zoom and rotate controls, Mars calendar feature, Access to latest 200 sols (free)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mars 2020 monthly renewing | $1.99 | per month |
| Mars 2020 1 week non-renewing | $0.99 | one-time |


### Vote Defender

[App page](https://appshunter.io/ios/app/vote-defender/id6760381385)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is areoHDR free?

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

### Is Vote Defender free?

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

### Do areoHDR or Vote Defender have ads?

Neither areoHDR nor Vote Defender shows ads.

### Which is updated more often, areoHDR or Vote Defender?

areoHDR ships an update every 2 months, and Vote Defender every 2 days. Most recently, areoHDR was updated on October 7, 2026 and Vote Defender on October 19, 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.*