# Sync vs Filum

The clearest difference is review sentiment: Filum at 100% against Sync's 51%. Filum also leads on rating (5.0 vs 4.2). Sync's advantage is in-app purchases (none vs 2) and ratings volume (829 vs 3). On price, update cadence and ads there is nothing between them.

Both are free to download. Filum sells 2 in-app purchases, starting at $4.99 per month. Sync asks for nothing beyond the download.

Filum holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Sync has 829 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 51% of Sync's written reviews are positive against 100% of Filum's.

Sync ships an update monthly, Filum every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sync | Filum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (829 ratings)](https://appshunter.io/ios/app/sync-secure-cloud-storage/id917410266/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/filum-document-vault/id6782100373/reviews)** |
| Number of ratings | **829** | 3 |
| Positive reviews | 51.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 53 MB | 59 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Sync.com Inc.](https://appshunter.io/developer/917410265) | [CorvidSoft](https://appshunter.io/developer/6782100375) |

## What reviewers say

### Sync

[App page](https://appshunter.io/ios/app/sync-secure-cloud-storage/id917410266)

Securely store, access, and share your files with end-to-end encryption. This cloud storage solution allows you to sync data across all your devices and collaborate with others through shared folders. Protect your sensitive information with robust privacy features.

**Highlights:** 5 GB free secure cloud storage, Access files from any device, Secure file sharing via links, Collaborate with shared folders, End-to-end encryption, Access controls

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

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly
- 🔒 Secure cloud storage
- 💡 Great value for the price
- 🚀 Fast and reliable
- 🇨🇦 Canadian-based company

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔍 Lack of search functionality
- 🚧 Outdated and basic UI
- 🔻 Slow upload/download speeds
- 📂 Limited file management options

**Reported bugs**

- Unreliable camera roll backup
- Inconsistent file sync across devices
- Frequent app crashes and freezes
- Inability to access offline files
- Sync issues when switching devices

**Requested features**

- Improved iOS app integration with Files app
- Video playback and streaming support
- Bulk file management (rename, move, delete)
- Advanced sharing options and controls
- Better background sync for photos/videos


### Filum

[App page](https://appshunter.io/ios/app/filum-document-vault/id6782100373)

Securely scan, organize, and manage important personal documents with on-device AI. It automatically categorizes files, extracts key information, and provides timely renewal reminders for items like passports and visas. Access your encrypted documents easily for offline use or when needed for uploads.

**Highlights:** On-device AI document scanning and categorization, Automatic extraction of dates and key information, Offline searchable document vault, End-to-end encryption on your device, Expiry and renewal reminders, Document export and recovery phrase, Integration with iPhone's document picker

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Filum Pro Monthly | $4.99 | per month |
| Filum Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Sync free?

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

### Is Filum free?

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

### Which has better reviews, Sync or Filum?

Filum is rated higher. Sync averages 4.2 out of 5 from 829 ratings, while Filum averages 5.0 from 3 ratings.

### Do Sync or Filum have ads?

Neither Sync nor Filum shows ads.

### Which is updated more often, Sync or Filum?

Sync ships an update monthly, and Filum every 3 weeks. Most recently, Sync was updated on October 29, 2026 and Filum on October 25, 2026.

---

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