# Pair Shutter (interlock shutter camera) vs Photo Ace

The clearest difference is rating: Photo Ace at 5.0 against Pair Shutter (interlock shutter camera)'s 3.0. Pair Shutter (interlock shutter camera)'s advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 18 months). On price, ratings volume and ads there is nothing between them.

Both are free to download. Photo Ace sells 1 one-off in-app purchase. Pair Shutter (interlock shutter camera) asks for nothing beyond the download.

Photo Ace holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Pair Shutter (interlock shutter camera) ships an update every 3 weeks, Photo Ace every 18 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Pair Shutter (interlock shutter camera) | Photo Ace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/pair-shutter-interlock-shutter-camera/id897338137/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/photo-ace-photo-widgets/id6465895491/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 18 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 10 MB |
| Requires iOS | **7.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Looped Picture Company](https://appshunter.io/developer/329729606) | [ProductiveTap](https://appshunter.io/developer/430553438) |

## What reviewers say

### Pair Shutter (interlock shutter camera)

[App page](https://appshunter.io/ios/app/pair-shutter-interlock-shutter-camera/id897338137)

This camera app allows two iPhones to synchronize their shutters via Bluetooth or Wi-Fi. Capture moments simultaneously with friends and family, perfect for couples or parties. It supports linking up to three devices for synchronized photography.

**Highlights:** Synchronized shutter control, Bluetooth and Wi-Fi connectivity, Supports up to three linked iPhones, Easy setup with channel numbers, Ideal for couples and parties

**Features:** macOS Compatibility

**In-app purchases:** none


### Photo Ace

[App page](https://appshunter.io/ios/app/photo-ace-photo-widgets/id6465895491)

Display interactive photo widgets on your Home Screen to browse, shuffle, and change filters without opening the app. Relive memories with random photo displays and customize your widget with buttons and borders.

**Highlights:** Interactive photo widgets, Browse, shuffle, and change filters on widget, Add buttons to widgets (previous, next, shuffle, filter), Select specific albums for each widget, Add multiple widgets (Premium), View full-size photos by tapping widget

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Pair Shutter (interlock shutter camera) free?

Pair Shutter (interlock shutter camera) is free to download, with no in-app purchases.

### Is Photo Ace free?

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

### Which has better reviews, Pair Shutter (interlock shutter camera) or Photo Ace?

Photo Ace is rated higher. Pair Shutter (interlock shutter camera) averages 3.0 out of 5 from 2 ratings, while Photo Ace averages 5.0 from 1 ratings.

### Do Pair Shutter (interlock shutter camera) or Photo Ace have ads?

Neither Pair Shutter (interlock shutter camera) nor Photo Ace shows ads.

### Which is updated more often, Pair Shutter (interlock shutter camera) or Photo Ace?

Pair Shutter (interlock shutter camera) ships an update every 3 weeks, and Photo Ace every 18 months. Most recently, Pair Shutter (interlock shutter camera) was updated on October 24, 2026 and Photo Ace on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*