Gengou Lib vs NiLMelia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gengou Lib
Quickly convert between Japanese era names and Christian era years. Features include era and year searching, period and era pickers, and the ability to display the current year in either system. Texts can be shown in Japanese or English.
- Era and year search
- Period picker
- Era picker
- Christian era year picker
- Japanese era year picker
- Show this year button
- Multi-language text display
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"Gengou Lib." is a quick reference of the Japanese era system. This application has functions as below. - Era and Year Search - Period picker - Era picker - Christian era year picker - Japanese era year picker - Show this year button - Texts can be shown in Japanese or English independently of the default language setting. - Application badge can show this year number in the Japanese era or the Christian era. The Japanese era system identifies a year by the combination of the era name (Gengou or Nengou) and the year number within the era. For example, A.D. 2001 is Heisei 13. Please note that two Gengou schemes were used in Parallel from 1331 to 1392 during Nanboku-chō period. This application would be very useful if you are working with the governments, municipal offices and/or certain companies in Japan.
NiLMelia
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By adding rules for specific websites, you can browse page lists, view work details, read chapters, and play audio or video, all within an app-optimized UI. You can import community-distributed rules or easily create and edit your own. Key Features: Custom Library Creation: Build your own personalized library by adding custom Site Rules. Flexible Rule Editing: Fully supports CSS, XPath, JSONPath, and Regular Expressions (Regex) for advanced scraping. Rich Layout Options: Optimized interfaces for item lists, details, chapters, and tags. Built-in Media Players: Seamless in-app image viewer, audio player, and video player. Content Management: Features for favorites, history, and folder organization. Local Storage: Supports downloading and saving selected media locally. UI Customization: Light/Dark theme toggles with customizable accent colors. Cloud Sync: Sync your data across devices securely via Firebase Login. Premium Options: Premium tier features and unlockable site slots. Recommended For: Users who want to consolidate their frequently visited sites into one app. Users looking to organize and enjoy web content that is otherwise hard to browse on standard mobile browsers. Power users who love fine-tuning layout and parsing rules to fit their exact preferences. Anyone who wants to manage images, audio, and video all in one place. NiLMelia is the ultimate tool for those who want to leverage custom rules to craft their perfect, personalized browsing environment.
Screenshots
Verdict
The clearest difference is in-app purchases: Gengou Lib at none against NiLMelia's 8. Gengou Lib also leads on iOS requirement (13.0 vs 16.4). NiLMelia's advantage is update cadence (every 2 weeks vs every 61 months). On price, ads 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
Both are free to download. NiLMelia sells 8 in-app purchases, starting at $1.99 per month. Gengou Lib asks for nothing beyond the download.
Gengou Lib ships an update every 61 months, NiLMelia every 2 weeks. The most recent releases landed on August 13, 2026 and September 14, 2026 respectively.
| Parameter | Gengou Lib | NiLMelia |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 84.5% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 61 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 6 MB | 66 MB |
| Age rating | 4+ | 17+ |
| Developer | Masayuki Akamatsu | NULL (Gunma) |
In-app purchases
Gengou Lib
No in-app purchases
NiLMelia
- NiLMelia Premium (Monthly)$1.991 Month
- NiLMelia Premium (3-Month)$3.993 Months
- NiLMelia Premium (Yearly)$9.991 Year
- Add 1 Site Slots$0.99
- Remove Ads$2.99
- Add 5 Site Slots$4.99
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- Add 10 Site Slots$9.99
- Add 30 Site Slots$19.99









