S3 Client vs Solum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S3 Client
Access and manage your S3-compatible cloud storage directly from your device's file system. Seamlessly integrate with services like AWS, Backblaze, and MinIO, with files available on demand and automatic synchronization.
- Direct access via Files app and Finder
- Automatic file synchronization
- Support for AWS, Backblaze, MinIO, and more
- Uploads via system share sheet
- Generate pre-signed sharing links
- Supports encryption (SSE-C, AES-GCM)
- Shortcuts automation integration
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Access your S3 storage directly from the Files app, Finder, and other applications on iPhone, iPad, and Mac. Developed by the creator of Working Copy, this application provides seamless integration with S3-compatible storage services. Once configured, S3 buckets appear alongside other cloud storage providers, with files available on demand. Files are downloaded as needed and automatically synchronized back to S3 when modified. The app supports a wide range of S3-compatible services, including AWS S3, BackBlaze B2, CloudFlare R2, DigitalOcean Spaces, MinIO, and others. Files and directories can be uploaded through the system share sheet on iOS and the Services menu on macOS. The app remembers preferred upload destinations for different file types, streamlining file management. Pre-signed sharing links can be generated directly from Finder and the Files app, allowing temporary access to files for up to seven days. Support for server-side encryption with customer-provided keys (SSE-C) and client-side AES-GCM encryption compatible with the Amazon S3 Encryption Client. Comprehensive support for Shortcuts automation enables operations such as listing, downloading, uploading, and moving files. The app is free to use with a single server. A Pro Unlock is required for multiple servers, available as a one-time purchase or a monthly subscription, with access shared across iPhone, iPad, and Mac. A one-week free trial allows users to evaluate Pro features before purchase.
Solum
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Solum runs open AI models directly on your iPhone, so your prompts, responses, images, and conversation history stay on your device. Start free with Bonsai 1.7B. Upgrade once to Solum Premium to unlock every model and setting—no subscription. ON-DEVICE AI CHAT • Chat without sending prompts to an inference server • Render structured Markdown responses • Keep multiple conversations saved locally • Use image attachments with supported multimodal models CHOOSE YOUR MODEL • Bonsai 1.7B is included free • Premium unlocks Bonsai 4B, 8B, and 27B • Premium also unlocks Gemma 4 E2B • Large models use a memory-safe mode by default PRIVATE BY DESIGN • No account required • No cloud inference • Conversations and attachments remain on-device • Downloaded models are stored locally and can be removed at any time SOLUM PREMIUM A one-time $14.99 purchase unlocks all models, image understanding on supported models, and every setting. No subscription.
Screenshots
Verdict
The clearest difference is device support: S3 Client at 3 against Solum's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. S3 Client sells 2 in-app purchases, starting at $2.99 per month and Solum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | S3 Client | Solum |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (57 ratings) — better | — |
| Positive reviews | 79.1% of reviews | — |
| Number of ratings | 57 — better | — |
| Update frequency | Every 9 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 18.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 63 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Anders Borum ApS | SAMI HINDI |
Bugs and requests
S3 Client
Reported bugs
17 issues- Files renamed randomly
- High CPU usage
- Stopped working in iOS 26
- Can't set permissions
- Fails to load S3 buckets properly
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- Duplicating root folders
- Folders missing
- Failing to upload
- No image/video thumbnails
- EXIF option unreliable
- No SSE-C encryption/decryption support
- Does not support IAM policy roles
- Short-lived keys needed
- App locks up Files app
- Requires reboot
- Issues with S3 Minio
- Update issues with older macOS
Requested features
14 requests- Support for WebDAV servers
- Support for Google OAuth for GCS
- Synchronous feature to backup photos automatically
- Configurable AWS endpoint for non-.com endpoints
- Allow import/export of configuration
Show 9 moreShow fewer
- Show number of files in a directory
- Option to clear app cache
- Support for SSE-C encryption/decryption
- Support for IAM policy roles
- Support for S3 buckets with short-lived keys
- Dark mode option
- Advanced analytics dashboard
- Duplicate Settings option for iOS
- Support for public dataset anonymous configuration
Solum
Not enough reviews yet to summarise bugs or requests.
In-app purchases
S3 Client
- S3 Files Pro Monthly7 Days trial$2.991 Month
- Lifetime S3 Pro$14.99
Solum
- Solum Premium$14.99









