OnlyHereSafe vs RC Slate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnlyHereSafe
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When you tried to use an application outside the office, you had trouble because you were logged out. Have you ever had trouble finding a password or account information when you need it? If you want to be able to easily check important data from your bank, online services, fitness apps, etc., wherever you are, “OnlyHereSafe” is the perfect solution. OnlyHereSafe” is a secure and easy-to-use app designed for those seeking cloud-independent security. It uses encryption technology to securely store all passwords and account information offline. In addition, it features password generation and automatic clipboard erasure to further enhance security. (Note, however, that if you back up your iPhone to iCloude or another device, the encrypted data may be stored online or on another device.) OnlyHereSafe is a must-have app for users who prioritize privacy and security in the digital age. It is especially suitable for those who want the peace of mind of not being connected to the Internet. It allows you to safely manage your passwords and account information and enjoy your digital life anytime, anywhere without worry. Download “OnlyHereSafe” now and experience the peace of mind of being offline. Your important data will be securely protected. The key features of “Koko Dake Anshin Chou” are No more “I” and “l” in the password generation! Check “Use only easily distinguishable characters. Easy account creation. If your cloud service account is hijacked..! It is difficult to extract data unless your iPhone itself is hijacked. Offline advantage. You can easily create a new account and check the status of your account. Features in Koko Dake Anshincho Easy, simple, only here, encryption, account owner, biometric authentication, sandbox, memo, only you can manage What you won't find in Koko Dake Anshincho No data transmission, no access from other devices, no storage on other devices, no cloud, no upload, no No uploading, no syncing Notes: - Master data is stored in a notebook at your home. Please keep your master data safely at home in a notebook or other safe place. When you take your master data outside of your home, “Koko Dake Anzen Chou” can protect your data. If you backup your iPhone to iCloude or another device, the encrypted data may be stored online or on another device. Please use the app’s delete function to remove your password. Deleting the app itself will not delete the password. If you have deleted this app in the past, you can delete the remaining password from the settings screen.
RC Slate
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**RC Slate — the browser that opens your documents, built for people who work with AI.** Tap a document link while browsing — Markdown, DOCX (Word), PDF, JSON, YAML, images — and it opens right there, rendered as a clean page. No downloading, no switching to another app, no wondering what a file looks like before you can see it. **Convert anything to Markdown for AI** Turn documents and web pages into clean, token-efficient Markdown — the same content in a fraction of the prompt size. DOCX converts through the app's own parser; web pages by pulling out the article text. Need the images too? Embed them into a single self-contained Markdown file, with quality presets and a live token estimate. Export any view as PDF, PNG, or HTML. (Markdown conversion is not lossless; full page layout is not preserved.) **Read your Obsidian vault** Add a vault folder and read it as it was written — wikilinks between notes and embedded images. Links resolve inside the folder you added, so a note opens the note it points to. And a vault note leaves as one piece: export it as a single self-contained Markdown file with its images embedded, or as HTML, PNG, or PDF — ready to hand to an AI. Reading only; RC Slate never edits or syncs your vault. **A real browser underneath** Documents are grouped by the site they came from. Switch any article to Reader Mode for a clean, distraction-free reading layout with dark mode. iPhone and iPad layouts, with a sidebar and tab strip on iPad. **Clean pages for every format** - Markdown with tables, syntax highlighting, Mermaid diagrams, and LaTeX math - JSON and YAML: colour-coded, with their keys in the table of contents so you can jump straight to one - DOCX (Word) page by page, view-only (the document's own fonts are not included) - PDF and images **Open files from anywhere** Files on your device open from the Files app — or send a file from any app through the share menu, straight to RC Slate. SelfDrop syncs a file across your devices (up to 20 MB per file). **Works offline** Viewing local files works offline on your device.
Screenshots
Verdict
The clearest difference is ads: OnlyHereSafe at none against RC Slate's shown. On price, in-app purchases, device support 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | OnlyHereSafe | RC Slate |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 9 days |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 20 MB |
| Age rating | 4+ | 17+ |
| Developer | Yuji Tanaka | Jaehong Lim |
In-app purchases
OnlyHereSafe
No in-app purchases
RC Slate
No in-app purchases









