# Negative Photo Maker vs SynX

The clearest difference is rating: SynX at 5.0 against Negative Photo Maker's 2.3. SynX also leads on in-app purchases (none vs 6) and ads (none vs shown). Negative Photo Maker's advantage is ratings volume (26 vs 1) and iOS requirement (15.6 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Negative Photo Maker sells 6 in-app purchases, starting at $0.99 per 7 days. SynX asks for nothing beyond the download.

SynX holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: Negative Photo Maker has 26 ratings behind it against 1, so its average is the more settled of the two.

Negative Photo Maker ships an update every 3 months, SynX monthly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Negative Photo Maker | SynX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (26 ratings)](https://appshunter.io/ios/app/negative-photo-maker/id1363097099/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/synx-connected-or/id1550846624/reviews)** |
| Number of ratings | **26** | 1 |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 51 MB | 53 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Rajneesh Mishra](https://appshunter.io/developer/1334096145) | [Stereotaxis](https://appshunter.io/developer/1550846626) |

## What reviewers say

### Negative Photo Maker

[App page](https://appshunter.io/ios/app/negative-photo-maker/id1363097099)

Easily create photo negatives and apply custom effects to your images. Select photos from your gallery or camera and use intuitive touch controls to apply filters and design shapes. Save your edited creations directly to your photo library.

**Highlights:** Apply negative effects, Use camera or gallery photos, Touch-based filter application, Design custom shapes, Save to photo library

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $5.99 | per year |
| Buy All Premium | $6.99 | one-time |
| No Ads | $6.99 | one-time |
| 1 Time Purchase | $7.99 | one-time |


### SynX

[App page](https://appshunter.io/ios/app/synx-connected-or/id1550846624)

This app facilitates live procedure connectivity, communication, and remote monitoring for medical professionals in operating rooms. It enables peer-to-peer collaboration, lab monitoring, and educational sharing, while ensuring privacy and security.

**Highlights:** Live procedure connectivity, Remote monitoring, Peer-to-peer collaboration, On-demand video calling, Lab monitoring, Education and training, Physician networking

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Negative Photo Maker free?

Negative Photo Maker is free to download, with in-app purchases available.

### Is SynX free?

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

### Which has better reviews, Negative Photo Maker or SynX?

SynX is rated higher. Negative Photo Maker averages 2.3 out of 5 from 26 ratings, while SynX averages 5.0 from 1 ratings.

### Do Negative Photo Maker or SynX have ads?

Negative Photo Maker shows ads; SynX does not.

### Which is updated more often, Negative Photo Maker or SynX?

Negative Photo Maker ships an update every 3 months, and SynX monthly. Most recently, Negative Photo Maker was updated on October 24, 2026 and SynX on October 7, 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.*