OTC Memo vs Simple Hidden Note
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTC Memo
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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.
Simple Hidden Note
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OTC Memo ships an update weekly, Simple Hidden Note daily. The most recent releases landed on September 13, 2026 and September 17, 2026 respectively.
| Parameter | OTC Memo | Simple Hidden Note |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 41 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Katsushi Kawamori | Next Level Order Engineering UG (haftungsbeschrankt) |
In-app purchases
OTC Memo
No in-app purchases
Simple Hidden Note
No in-app purchases
Questions
Is OTC Memo free?
Is Simple Hidden Note free?
Do OTC Memo or Simple Hidden Note have ads?
Which is updated more often, OTC Memo or Simple Hidden Note?
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