Comparison

OTC Memo vs Simple Hidden Note

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

Head to head
About

OTC Memo

Features
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Ever find it a hassle to long-press, select, and copy when copying notes? This app splits sentences based on line breaks during editing, allowing you to copy each one with a one tap. Simply write your notes with line breaks, and they'll automatically organize like “tags.” Copy with a single tap, making it perfect for use as a “phrase dictionary” or “template text.” Copied tags change color for instant recognition. Full-text search supported. Supports creating QR codes for memos and scanning QR codes. Supports the memo sharing button.

About

Simple Hidden Note

Features
Read full description

Simple Hidden Note is a lightweight, free and offline note taking app. Simply and only made for Text note taking. By default plain text, with minimal formatting possible if required. The main feature is the hidden part. Notes are hidden by default. Creating a new note works the same as accessing an existing note: you authenticate then enter any pin. The collection of single notes will be available under that pin then. The app automatically exits hidden notes when in the background. Alternatively you can "unlock" any note collection to make it visible and accessible from the app home screen. [Features] • One text note collection per entered pin. Any pin. • Unlocking notes means usability like a simple text note editor. • Biometric authentication before pin entry. • Light and dark modes • Note collection import, export and sharing • No cost, no account, no advertising Be aware that notes are not encrypted by the app though. The app also works together with our Containd app by linking each inventory item to a pin/ note collection in Simple Hidden Note. And that note then links back to Containd App to the respective item. Just in case more text is required.

Screenshots

OTC Memo4 screens
Simple Hidden Note4 screens

Verdict

The call

The clearest difference is update cadence: Simple Hidden Note at daily against OTC Memo's weekly. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OTC Memo ships an update weekly, Simple Hidden Note daily. The most recent releases landed on September 13, 2026 and September 17, 2026 respectively.

Scorecard1 real difference · 5 level
OTC Memo versus Simple Hidden Note: the parameters behind the verdict, then further details
ParameterOTC MemoSimple Hidden Note
PriceFreeFree
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS16.415.1 — better
Further details — not scored
Size41 MB35 MB
Age rating4+4+
DeveloperKatsushi KawamoriNext Level Order Engineering UG (haftungsbeschrankt)

In-app purchases

None

OTC Memo

No in-app purchases

None

Simple Hidden Note

No in-app purchases

Questions

Is OTC Memo free?
OTC Memo is free to download, with no in-app purchases.
Is Simple Hidden Note free?
Simple Hidden Note is free to download, with no in-app purchases.
Do OTC Memo or Simple Hidden Note have ads?
Neither OTC Memo nor Simple Hidden Note shows ads.
Which is updated more often, OTC Memo or Simple Hidden Note?
OTC Memo ships an update weekly, and Simple Hidden Note daily. Most recently, OTC Memo was updated on September 13, 2026 and Simple Hidden Note on September 17, 2026.

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