Readstock vs ZattaMemo
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Readstock
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ReadStock is an app to quickly save and organize articles you want to read. γFeaturesγ β’ Save articles by pasting a URL β’ Organize with categories and tags β’ Mark articles as "Read Later" β’ Favorite articles for quick access β’ Sort by date added or last viewed β’ Easy sign-in with Google β’ Available in Japanese and English Save interesting articles you find while browsing, useful work resources, or anything worth revisiting β ReadStock keeps them all organized and ready when you need them.
ZattaMemo
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ZattaMemo is a memo app for jotting things down quickly β and rediscovering them through your home screen widget. β Jot It Down, That's All You Need Just type and save. No extra steps, no setup. Designed for the moment an idea hits β capture it before it slips away. β Rediscover with Widgets Add a widget to your home screen and your saved memos appear at random. Forgotten ideas and TODOs catch your eye when you least expect it. Available in small and medium sizes. Tap to jump straight to the full memo. With the upgrade, the widget can also show starred memos only, or filter by tag. β Organize Later with Hashtags Type #hashtags in your memo and they're automatically recognized as tags. Even the roughest notes become searchable and filterable after the fact. Six preset tags are included: Idea, TODO, Shopping, Work, Personal, and Later. Over time, your own tagging system takes shape naturally. β Export and Put Your Notes to Work Export your memos in plain text, CSV, or JSON format. Copy to clipboard or share to other apps. Paste into AI tools to sort, categorize, or brainstorm from your raw notes. Your quick scribbles become input for something bigger. β Export and Restore Export your memos as JSON, and import them back anytime. Useful for restoring data after reinstalling, or moving between devices. β More Features - Star important memos for quick access - Bulk actions: archive, restore, or delete multiple memos at once - Search by keyword or filter by tag - All data stays on your device β no server, no account, no tracking β Feature List - Create, edit, archive, and permanently delete memos - Tag system (auto-extracted hashtags) - Favorites (star) feature - Bulk operations (select, archive, restore, delete) - Keyword search and tag filter - Export (text / CSV / JSON) - Home screen widget (small and medium) - Jump to memo detail from widget - Widget filtering: starred only / by tag (Upgrade) - Unlimited memos (Upgrade) - Attach an image to your memos (Upgrade) - Add memos from the share sheet (Upgrade) β About the Upgrade β All core features are free. A one-time (non-subscription) upgrade unlocks unlimited memos, widget filtering (starred / tag), image attachments, and adding memos from the share sheet. Note: ZattaMemoLite has been renamed to ZattaMemo. Same app, same data. Jot it down, rediscover later. A simple memo app that's just right.
Screenshots
Verdict
The clearest difference is in-app purchases: Readstock at none against ZattaMemo's 1. Readstock also leads on iOS requirement (15.1 vs 17.0). ZattaMemo's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. ZattaMemo sells 1 one-off in-app purchase. Readstock asks for nothing beyond the download.
| Parameter | Readstock | ZattaMemo |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 3 weeks |
| Ads | Yes | No β better |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 32 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | taishiro honda | Tatsuyoshi Sasaki |
In-app purchases
Readstock
No in-app purchases
ZattaMemo
- ZattaMemo Upgrade$3.99









