MEMOrizer app vs HayaFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MEMOrizer app
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MEMOrizer is a memo-style study app that lets you record notes and hide selected text for active recall. With a clean and minimal UI, you can create notes quickly, review them in random order, and even receive scheduled random notifications — allowing you to study effortlessly in the background. 【Features】 ・Simple, login-free note creation and management. A clean UI lets you write and save notes instantly. ・Supports both text and images. Capture diagrams, formulas, or snapshots and store them with your notes. ・Organize with folders, tags, and understanding levels. Keep your study materials structured and easy to find. ・Random review (flashcard mode). Shuffle your notes and review them continuously. Filter by last viewed time, understanding level, tags, or favorites. ・Random notification reminders. The app can send random notes as notifications, so you can review even in the background. ・Export your notes as a ZIP file to share with friends, classmates, or family. ・One-time purchase unlocks unlimited notes and removes ads. 【Recommended for】 ・Students preparing for exams, entrance tests, or certifications(the developer uses this app for medical studies!) ・People who want to study but often get distracted by their phone ・Anyone who wants to collect trivia or fun facts and memorize them ・Users who want to record everyday thoughts and revisit them later
HayaFlow
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HayaFlow is a simple flowchart app designed to help you think in flows. No complex setup required. Start drawing the moment an idea comes to mind, and instantly turn it into a structured flow. With intuitive and responsive interactions, you can capture and organize your thoughts without breaking your thinking process. Key Features: • Simple and intuitive interface • Fast and smooth performance • Instantly turn ideas into flowcharts • Link flows and navigate between them quickly • Perfect for thinking, workflow design, and logic structuring Recommended for: • Organizing your thoughts • Structuring workflows and processes • Turning ideas into visual flows quickly • Anyone looking for a simple and fast tool In-App Purchase: A one-time purchase is available to unlock full editing features. You can restore your purchase on devices using the same Apple ID. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/hayaflow/privacypolicy
Screenshots
Verdict
The clearest difference is ads: HayaFlow at none against MEMOrizer app's shown. MEMOrizer app's advantage is update cadence (daily vs every 5 days). 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. MEMOrizer app sells 1 one-off in-app purchase and HayaFlow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
MEMOrizer app ships an update daily, HayaFlow every 5 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.
| Parameter | MEMOrizer app | HayaFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 5 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.6 — better | 18 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Yu Takahashi | Masato Hayashi |
In-app purchases
MEMOrizer app
- メモライザ PRO$3.99
HayaFlow
- HayaFlow Unlock Full Function$2.99









