Comparison

Simple Double Memo vs HELLO! MUSEUM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Simple Double Memo

This app allows you to write and manage two memos simultaneously on a single screen, either stacked vertically or side-by-side horizontally. It automatically adjusts the layout based on your device's orientation, making it ideal for comparisons or managing multiple ideas.

Highlights
  • Two-panel memo structure (vertical & horizontal)
  • Automatic layout switching with screen rotation
  • Save memos with titles and update dates
  • Edit, delete, and reorder memos
  • Search function for titles and content
  • No ads or in-app purchases
Features
Read full description

"This app is a simple and easy-to-use new style memo app, allowing you to write two memos side by side either vertically or horizontally. Use it as an idea notebook, comparison notes, or manage two themes — how you use it is up to you. In portrait mode, the layout switches automatically to two stacked memos, and in landscape, two memos side by side. Just tilt your iPhone or iPad and both memos will be displayed naturally and clearly. Experience the convenience of handling two memos in parallel on one screen! [Main features] * Two-panel memo structure (vertical & horizontal) Shows Memo 1 and Memo 2 stacked vertically in portrait and side-by-side in landscape, switching automatically with screen rotation. * Save memos with titles Each memo saves a title and texts for top (left) and bottom (right) sections, automatically added to list. Update dates are recorded for easy review. * Edit, delete, reorder Tap to edit any memo, swipe to delete, drag & drop to reorder. Also use the Edit button at top-left for reordering and deletion. * Search function Search keywords in titles and memo contents to quickly find what you need. * No ads & one-time purchase This is a paid, no ads app with no in-app purchases or subscriptions for distraction-free memo-taking. [How to use] 1. Add a memo Tap the "+" button at screen bottom right, input title and contents, then save with "Done". 2. Edit, delete, reorder memos Tap a saved memo to edit and update, swipe to delete, drag & drop to reorder, or use "Edit" button. 3. Search memos Type keywords in the search bar at the top to instantly list relevant memos. Ideal as an idea notebook, comparison notes, or to organize content from two perspectives. Make the most of the two-panel layout with your own style. *Note: This is a paid app with no ads."

About

HELLO! MUSEUM

Features
Read full description

HELLO! MUSEUM is an audio and subtitle guide app that enriches your experience at museums, galleries, and exhibitions. No rental devices needed — just your smartphone and earphones. ◆ Easy 3 Steps Check in at the venue Enter the exhibit number using the on-screen keypad Press play — enjoy audio and subtitle commentary ◆ Key Features ・Audio Guide — Audio commentary for artworks and exhibits ・Subtitle Guide — Subtitle support for your viewing experience ・Video Sync — Automatically synchronizes subtitles and audio with video playback ・Multilingual — Japanese, English, and more depending on the exhibition ・Offline Playback — Download guide data once, then use without connectivity ・Accessibility Support ◆ Perfect For ・Anyone who wants a deeper experience at events, museums, and galleries ・Visitors who don't want to wait in line to rent audio guide devices ・Those who want commentary in their native language ・Families who want to learn about artworks together with their children ◆ Works Offline Guide data is downloaded when you enter the exhibition code. Once downloaded, the app works in airplane mode — perfect for underground galleries or venues without Wi-Fi. Supported exhibitions are expanding — stay tuned!

Screenshots

Simple Double Memo4 screens
HELLO! MUSEUM4 screens

Verdict

The call

The clearest difference is price: HELLO! MUSEUM at Free against Simple Double Memo's $2.99. HELLO! MUSEUM also leads on update cadence (every 5 weeks vs every 4 months). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

HELLO! MUSEUM is free to download; Simple Double Memo costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple Double Memo ships an update every 4 months, HELLO! MUSEUM every 5 weeks. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 6 level
Simple Double Memo versus HELLO! MUSEUM: the parameters behind the verdict, then further details
ParameterSimple Double MemoHELLO! MUSEUM
Price$2.99Free — better
Positive reviews100.0% of reviews—
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size3 MB2 MB
Age rating4+4+
DeveloperShun IsayamaEvixar Inc.

In-app purchases

None

Simple Double Memo

No in-app purchases

None

HELLO! MUSEUM

No in-app purchases

Questions

Is Simple Double Memo free?
Simple Double Memo costs $2.99, with no in-app purchases.
Is HELLO! MUSEUM free?
HELLO! MUSEUM is free to download, with no in-app purchases.
Do Simple Double Memo or HELLO! MUSEUM have ads?
Neither Simple Double Memo nor HELLO! MUSEUM shows ads.
Which is updated more often, Simple Double Memo or HELLO! MUSEUM?
Simple Double Memo ships an update every 4 months, and HELLO! MUSEUM every 5 weeks. Most recently, Simple Double Memo was updated on October 15, 2026 and HELLO! MUSEUM on October 5, 2026.

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