# Chroma key green screen app vs DiffPic

The clearest difference is ads: DiffPic at none against Chroma key green screen app's shown. DiffPic also leads on update cadence (every 3 weeks vs every 18 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Chroma key green screen app sells 3 in-app purchases, starting at $7.99 per 7 days and DiffPic sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Chroma key green screen app ships an update every 18 months, DiffPic every 3 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Chroma key green screen app | DiffPic |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 15.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 44 MB | 23 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maria Gascon](https://appshunter.io/developer/1265018007) | [Christopher Brown](https://appshunter.io/developer/1837291767) |

## What reviewers say

### Chroma key green screen app

[App page](https://appshunter.io/ios/app/chroma-key-green-screen-app/id1401834840)

Easily combine images or videos by replacing specific color areas. This app allows you to key out green, red, or blue tones from your photos or videos and replace them with custom backgrounds from your gallery or new recordings.

**Highlights:** Chroma keying for image/video background replacement, Key out green, red, or blue tones, Use gallery images or new recordings as backgrounds, Adjust editor settings, Save results

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $7.99 | per 7 days |
| Remove Ads | $6.99 | one-time |
| Lifetime plan | $29.99 | one-time |

**What reviewers like**

- 👍 Works well for some users
- 👍 Good for photos
- 👍 Free green screen app

**What reviewers complain about**

- 🐛 Does not work at all
- 🐛 Premium does not work
- 🐛 Too many ads
- 🐛 Horrible quality
- 🐛 Doesn't work for videos

**Reported bugs**

- App does not work
- Premium features do not work
- Too many ads
- Background appears everywhere
- Cropped screen

**Requested features**

- Allow video import
- Allow custom photos
- Add tutorials
- Fix landscape mode
- Improve video quality


### DiffPic

[App page](https://appshunter.io/ios/app/diffpic/id6751864280)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Watermark | $0.99 | one-time |


## Frequently asked questions

### Is Chroma key green screen app free?

Chroma key green screen app is free to download, with in-app purchases available.

### Is DiffPic free?

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

### Do Chroma key green screen app or DiffPic have ads?

Chroma key green screen app shows ads; DiffPic does not.

### Which is updated more often, Chroma key green screen app or DiffPic?

Chroma key green screen app ships an update every 18 months, and DiffPic every 3 weeks. Most recently, Chroma key green screen app was updated on October 13, 2026 and DiffPic on October 3, 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.*