# SyncDrop vs cairn

The clearest difference is in-app purchases: cairn at none against SyncDrop's 3. SyncDrop's advantage is update cadence (every 3 days vs weekly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. SyncDrop sells 3 in-app purchases, starting at $1.99 per month. cairn asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for SyncDrop against 5.0 for cairn. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

SyncDrop ships an update every 3 days, cairn weekly. The most recent releases landed on August 30, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | SyncDrop | cairn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/syncdrop-smart-photo-sync/id6758571279/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cairn-immich-sync/id6763392945/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Freemium | **Free** |
| Size | 50 MB | 8 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [子昂 陈](https://appshunter.io/developer/1870440284) | [Graham Larue](https://appshunter.io/developer/1873829108) |

## What reviewers say

### SyncDrop

[App page](https://appshunter.io/ios/app/syncdrop-smart-photo-sync/id6758571279)

Effortlessly sync files, clipboards, and photos across your devices and private cloud. Offers fast, secure transfers with advanced features for photographers and automated backups.

**Highlights:** Universal file and clipboard syncing, Cross-platform device transfer, Automated photo backup to cloud/NAS, Studio Mode for photographers, Secure P2P transfers with TLS 1.3, No account required for pairing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $9.99 | per year |
| Lifetime Premium | $24.99 | one-time |


### cairn

[App page](https://appshunter.io/ios/app/cairn-immich-sync/id6763392945)

This app synchronizes your iPhone photo library with your Immich server. It automatically moves photos deleted from your phone to your Immich trash, ensuring consistency. The app prioritizes safety with features like a quarantine window and trash-to-restore functionality.

**Highlights:** Syncs iPhone deletions to Immich, Moves deleted photos to Immich Trash, Configurable quarantine window, Trash-to-restore functionality, Percent cap and floor for safety, Exclusion options for specific photos, Restrict indexing to specific albums

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

**In-app purchases:** none


## Frequently asked questions

### Is SyncDrop free?

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

### Is cairn free?

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

### Which has better reviews, SyncDrop or cairn?

SyncDrop and cairn are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do SyncDrop or cairn have ads?

Neither SyncDrop nor cairn shows ads.

### Which is updated more often, SyncDrop or cairn?

SyncDrop ships an update every 3 days, and cairn weekly. Most recently, SyncDrop was updated on August 30, 2026 and cairn on September 15, 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.*