Secret Notepad with Password vs OTenkeyCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Secret Notepad with Password
Securely store your private thoughts and images with a password-protected vault. Features biometric unlock, screen blurring, and the ability to attach photos directly to notes without saving them to your camera roll.
- Password and biometric authentication
- Screen blurring for privacy
- Attach photos directly to notes
- Photos not saved to camera roll
- Undo/redo support
- Search functionality
- Dark mode
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Got notes you'd rather keep to yourself? This app is a private notes app that keeps your secrets safe with a password and biometric authentication. While you're writing, the screen is blurred so no one nearby can read what you're typing. Set a simple numeric PIN or a complex alphanumeric password — whichever you prefer — and unlock it in an instant with Face ID or Touch ID. You can also attach photos directly to your notes. Pick from your photo library or take a shot right there on the spot. Photos taken inside the app are never saved to your camera roll, so even the most sensitive images stay locked away inside your notes. Photos and notes, all in one place ・Attach photos from your photo library ・Take a photo on the spot and insert it instantly ・Photos taken in the app are not saved to your camera roll ・Blur is applied to attached photos too, keeping them private ・Tap a photo to view it full screen Privacy and protection you can count on ・Face ID, Touch ID, and iOS passcode support ・Set anything from a simple numeric PIN to a complex alphanumeric password — change it anytime ・Password entry is hidden from view so no one can peek ・Blur the screen while writing; adjust the intensity with a simple slider Write with ease, find in a flash ・Undo and redo support — fix mistakes in a tap ・No limit on the number of notes ・Wide range of fonts and text sizes; Dynamic Type supported for comfortable reading ・Sort by last edited, created date, or title; manual ordering available ・Search to find any note quickly ・Dark mode supported ・Optimized for the larger iPad display
OTenkeyCalc
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Numeric ten keypad calculator that also displays the current temperature and weather at your current location * Weather information source: Apple Weather Service https://developer.apple.com/weatherkit/data-source-attribution/ https://support.apple.com/ja-jp/105038
Screenshots
Verdict
The clearest difference is in-app purchases: OTenkeyCalc at none against Secret Notepad with Password's 1. OTenkeyCalc also leads on update cadence (every 2 weeks vs monthly). On price, ads, 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. Secret Notepad with Password sells 1 one-off in-app purchase. OTenkeyCalc asks for nothing beyond the download.
Secret Notepad with Password ships an update monthly, OTenkeyCalc every 2 weeks. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.
| Parameter | Secret Notepad with Password | OTenkeyCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.7.10 — better |
| Further details — not scored | ||
| Size | 8 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | manabu ueda | Hideaki Uchikoshi |
In-app purchases
Secret Notepad with Password
- Ad-Free Plan(Lifetime)$2.99
OTenkeyCalc
No in-app purchases
Questions
Is Secret Notepad with Password free?
Is OTenkeyCalc free?
Do Secret Notepad with Password or OTenkeyCalc have ads?
Which is updated more often, Secret Notepad with Password or OTenkeyCalc?
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