# CalcPlus - Hidden Notes — Calculator + Encrypted Notes > Encrypted calculator app for secure, offline storage of sensitive notes. (iPhone/iPad app by Wildcatter LLC.) - Source: https://appshunter.io/ios/app/calcplus-hidden-notes/id6744618485 (this page in markdown: same URL + `.md`) - Developer: [Wildcatter LLC](https://appshunter.io/developer/1229934042) - Category: Productivity, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 1 MB - Languages: English - Released: 2025-04-22 - Data updated: 2026-06-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/calcplus-hidden-notes/id6744618485/reviews.md ## What is CalcPlus? CalcPlus is a fully functional calculator with a hidden encrypted notes system built in. Enter your 6-digit PIN, tap =, and unlock secure, local-only notes storage completely offline. Use CalcPlus to store: • Crypto wallet recovery phrases (Ledger, MetaMask, etc.) • API keys and infrastructure passwords • Home Wi-Fi or VPN credentials • Door codes, admin access, or tax IDs • Any sensitive info that shouldn’t be in iCloud, Google Docs, or your camera roll Everything is encrypted on-device. No cloud sync. No account. No trace. CalcPlus Pro features: • Set your own custom PIN • Enable Face ID / Touch ID 2FA • Wipe notes after failed PIN attempts • Choose between Blue, Red, or Teal themes and auto-switch app icons to match CalcPlus is designed for privacy-focused users, security professionals, and anyone who wants peace of mind without compromise. Why CalcPlus? • Encrypted and offline • Stealthy interface looks like a basic calculator • No signup. No servers. No ads. • Instant, secure access — even when your signal is dead Download CalcPlus and reclaim your privacy. ## Key features - Encrypted local notes storage - Calculator interface - PIN and biometric security - Offline functionality - Customizable themes and app icons - Auto-wipe on failed attempts ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | CalcPlus Pro | $9.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/calcplus-hidden-notes/id6744618485/reviews.md ### 5/5 — Love this app! *2025-08-02* It’s perfect for keeping hidden notes on my phone. Just what I’ve been looking for! ### 5/5 — I love this app *2025-04-22* I have so many miscellaneous passwords, pass phrases, usernames and IDs and what not I need to keep track of that I don’t feel comfortable storing in the notes app but I still want on my iphone because I need quick access. This is a super easy secure solution ## Frequently asked questions about CalcPlus ### Does CalcPlus have ads? No, CalcPlus is ad-free. The description explicitly states 'No ads', ensuring an uninterrupted user experience. ### What is the update frequency for CalcPlus? CalcPlus was last updated on 2025-09-15, indicating active development and maintenance. The latest version is 1.0.7. ### How does CalcPlus protect my notes? Notes are encrypted on-device and stored locally, completely offline. Access is protected by a 6-digit PIN, with optional Face ID/Touch ID 2FA for enhanced security. ### Can I sync my notes with other devices using CalcPlus? No, CalcPlus does not offer cloud sync. All data is stored locally on the device to maximize privacy and security, with no servers or accounts involved. ### What kind of sensitive information can I store in CalcPlus? You can store crypto wallet recovery phrases, API keys, passwords, door codes, tax IDs, and any other sensitive data you wish to keep private and offline. ### What are the Pro features in CalcPlus? CalcPlus Pro offers a custom PIN, Face ID/Touch ID 2FA, an option to wipe notes after failed PIN attempts, and theme/app icon customization. ### Is CalcPlus suitable for children? CalcPlus has an age rating of 4+. While it is designed for privacy-focused users, its functionality is straightforward and accessible. ### What devices does CalcPlus support? CalcPlus is available for iPhone and iPod devices. ## Version history (last 5 releases) ### 1.0.7 — 2025-09-15 Performance improvements. ### 1.0.6 — 2025-09-01 Performance improvements. ### 1.0.5 — 2025-08-28 Design improvements. ### 1.0.4 — 2025-08-27 Design improvements ### 1.0.3 — 2025-08-26 Exit notes section when app is no longer active, forcing pin entry every time app becomes active. This ensures notes are never visible when the app becomes active. ## More apps by Wildcatter LLC - [Postable - compare your photos before posting](https://appshunter.io/ios/app/postable-compare-your-photos-before-posting/id1229934043) - [The Cities - New York, LA](https://appshunter.io/ios/app/the-cities-new-york-la/id1483400861) - [Flip - Flashcard maker](https://appshunter.io/ios/app/flip-flashcard-maker/id1506026780) - [PDFDarkMode - Customize PDFs](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327) - [MemoryPush - Flashcard Study](https://appshunter.io/ios/app/memorypush-flashcard-study/id6745531048) All apps by Wildcatter LLC: https://appshunter.io/developer/1229934042 ## Related topics [wildcatter llc](https://appshunter.io/ios/topics/wildcatter-llc) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*