PassFM vs SL Memory
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PassFM
Securely store and manage your private files, including photos, videos, documents, and notes. This app offers a private browser for safe web activity and allows for easy file import, export, and sharing. Protect your sensitive information with password protection and local storage.
- Password-protected file storage
- Private photo and video viewer/player
- Built-in private web browser
- Import, export, and share files
- Private contact and note management
- WiFi file transfer
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PassFM is a private file manager to protect your privacy. Setup password and lock your private albums, photos, videos, notes, documents and contacts. All files are stored locally. PassFM has a built-in photo viewer, video player and web browser. It is easy to import, preview, download, search, export files. File Manager: - Safely import your private images, videos, notes, docs to this app. - You can export photo and video to Photos or Files anytime. - Easy to transfer files via WiFi. - Easy to share to the third party App such as Mail, WeChat, Evernote, Dropbox. - Supported image formats: jpg, png, gif, bmp, webp, etc. - Supported video formats: mov, m4v, mp4, mpv, 3gp. - Supported text formats: txt, text, md, markdown, markd, markdn, mdown, mkd, mkdn. - Supported document formats: doc, ppt, xls, docx, pptx, xlsx, key, numbers, pages, pdf, rtf. Private Browser: - Full-featured、InPrivate browser. - No visit history. - Easy to add, manage bookmarks. - Easy to download all the images on the page. - Easy to download web videos, download HLS/M3U8 and convert to MP4. - Save webpage contents into PDF. Private Contact: - Unlimited add contacts. - Add a note to a contact. - Speed dial, send SMS, send e-mail. Private notes: - Markdown syntax highlighting. - Unlimited add notes. About Privacy: Your privacy is important to us. - PassFM app does not copy or store your Photos, Videos, Contacts, Notes, Docs, etc. - Please regularly backup data to your computer or mobile hard drive. - Do not uninstall PassFM app, clear app data or delete files. Otherwise, all your files will be lost forever. Support: Please contact xappbox+passcalc@gmail.com if you need any help.
SL Memory
Expand your iOS device's storage without Wi-Fi or network. Seamlessly transfer, view, and manage files between your iOS devices and computers. Enjoy direct media playback and secure file encryption.
- Two-way storage between iOS and PC/Mac
- Wi-Fi and network independent
- Seamless file transfer, viewing, and sharing
- Direct media playback
- File encryption
- Contacts backup and restore
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The SL Memory is the ultimate solution for memory expansion on iOS device. It's provides two-way storage between iOS and MAC/PC without Wi-Fi, network signal or battery power. Compatible with virtually all devices featuring a Lightning connector, this ultra-slim and fast flash drive enables users to seamlessly transfer, view and share documents, images, video and audio files between a multitude of gadgets. Organize, edit and manage files across multiple platforms, including iPad, iPhone and more. Play music and videos directly from the freeing up space on your devices. Other features include file encryption, contacts backup-restore, and video streaming via Airplay, Whether traveling by airplane for a business trip, stuck in a remote location without reception, or wanting to share photos and videos of a recent vacation, SL Memory fits perfectly into any lifestyle.
Screenshots
Verdict
The clearest difference is review sentiment: PassFM at 48% against SL Memory's 0%. PassFM also leads on rating (3.7 vs 2.5) and ratings volume (9 vs 2). SL Memory's advantage is price (Free vs $2.99) and iOS requirement (9.0 vs 14.0). On update cadence, ads, in-app purchases and device support 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
SL Memory is free to download; PassFM costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PassFM holds the better App Store score, 3.7 against 2.5. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 48% of PassFM's written reviews are positive against 0% of SL Memory's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.
| Parameter | PassFM | SL Memory |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.7 (9 ratings) — better | 2.5 (2 ratings) |
| Positive reviews | 48.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 9 — better | 2 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 41 MB |
| Age rating | 17+ | 4+ |
| Developer | 刘生 林 | Shenzhen Shiling Digital Technology.co., Ltd |
Customer experience
PassFM
SL Memory
In-app purchases
PassFM
No in-app purchases
SL Memory
No in-app purchases
