Comparison

Secret Notepad with Password vs OTenkeyCalc

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

OTenkeyCalc

Features
Read full description

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

Secret Notepad with Password3 screens
OTenkeyCalc1 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Secret Notepad with Password sells 1 one-off in-app purchase. OTenkeyCalc asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Secret Notepad with Password versus OTenkeyCalc: the parameters behind the verdict, then further details
ParameterSecret Notepad with PasswordOTenkeyCalc
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyMonthlyEvery 2 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.7.10 — better
Further details — not scored
Size8 MB37 MB
Age rating4+4+
Developermanabu uedaHideaki Uchikoshi

In-app purchases

1 purchases

Secret Notepad with Password

One-time1
  • Ad-Free Plan(Lifetime)$2.99
None

OTenkeyCalc

No in-app purchases

Questions

Is Secret Notepad with Password free?
Secret Notepad with Password is free to download, with in-app purchases available.
Is OTenkeyCalc free?
OTenkeyCalc is free to download, with no in-app purchases.
Do Secret Notepad with Password or OTenkeyCalc have ads?
Both Secret Notepad with Password and OTenkeyCalc show ads.
Which is updated more often, Secret Notepad with Password or OTenkeyCalc?
Secret Notepad with Password ships an update monthly, and OTenkeyCalc every 2 weeks. Most recently, Secret Notepad with Password was updated on October 30, 2026 and OTenkeyCalc on October 27, 2026.

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