るびポン vs Poster Printer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
るびポン
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RubiPon is a Safari extension that adds furigana (kana reading hints) to kanji on the Japanese web pages you visit — news sites, encyclopedias, official announcements, anything. FEATURES - One-tap furigana on any Japanese page, with an optional auto-on setting — live-updating pages (social feeds, live blogs) are supported too - Three dictionaries to choose from: the built-in system analyzer, the IPA dictionary, and the large-vocabulary Sudachi dictionary (with optional Core/Full downloads) - 600+ built-in reading-correction rules for dates, counter words and common idiomatic readings (e.g. 1月1日, 3階, 2泊3日, 二人) - A personal user dictionary for names and technical terms - Hiragana-first mode: kana becomes the main text with small kanji above — great for early readers - Romaji mode: show readings in romaji instead of hiragana — handy for beginning learners of Japanese - Fine display control (ruby size, line height, spacing), remembered per site (up to 100 sites) - Privacy by design: all analysis runs on your device. Nothing you browse is ever sent to any server. No ads, no tracking. HOW TO USE 1. Open the app and enable RubiPon in Settings > Safari > Extensions 2. Open a Japanese page and tap the extension icon in the address bar 3. Tap "Show furigana" Note: readings are generated automatically and may occasionally be wrong; correction rules and the user dictionary help you fix them. Network access is used only when downloading the optional Sudachi dictionaries.
Poster Printer
Transform any photo into a large poster by dividing it into multiple printable pages. This app allows you to adjust layouts, preview each section, and then print, cut, and assemble your creation without needing a special printer. It's ideal for DIY projects, wall art, and custom signage.
- Split photos into printable pages
- Preview tiled poster pages
- Add cut guides for assembly
- Move, zoom, and rotate photos
- Apply filters and background styles
- Use poster templates
- Undo/redo edits
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Print big posters at home using your regular printer. Poster Printer: Tile Print helps you turn any photo into a large printable poster by splitting it into multiple pages. Choose a photo, adjust the layout, preview each page, print, cut, and assemble. No large-format printer needed. Features: • Create large posters from photos • Split images into printable pages • Preview tiled poster pages before printing • Add clean cut guides for easier assembly • Move, zoom, rotate, and adjust your photo • Apply filters and background styles • Use poster templates for faster designs • Undo, redo, and reset your edits • Great for home, school, office, crafts, and wall decor Perfect for: • Wall art • Room decor • Birthday posters • Party signs • Classroom posters • Event banners • Family photo displays • Vision boards • DIY craft projects Make large posters from your favorite photos in a simple, practical way: choose, edit, preview, print, and assemble. Some features may require a subscription or in-app purchase.
Screenshots
Verdict
The clearest difference is update cadence: るびポン at every 3 days against Poster Printer's every 3 weeks. るびポン also leads on device support (4 vs 2) and iOS requirement (15.4 vs 17). On price, ads and in-app purchases 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.
るびポン ships an update every 3 days, Poster Printer every 3 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.
| Parameter | るびポン | Poster Printer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (15 ratings) — better |
| Number of ratings | — | 15 — better |
| Update frequency | Every 3 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.4 — better | 17 |
| Further details — not scored | ||
| Size | 140 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Kotatsu RIN | Ha Do Thi Thu |
In-app purchases
るびポン
No in-app purchases
Poster Printer
No in-app purchases









