Lock Notes vs Calculator+ Secure Vault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lock Notes
Securely store and protect your private notes with a passcode or Touch ID. Keep sensitive information like passwords, secrets, and diary entries safe from unauthorized access. Backup and sync notes across devices, customize their appearance, and even add images.
- Passcode and Touch ID protection
- Security question recovery
- iCloud backup and sync
- Customizable font style and size
- Insert images into notes
- Print and share notes
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FINALLY AN APP FOR ALL YOUR PRIVATE NOTES! Keep your most valuable, private, and secret notes away from prying eyes. Keep them all totally secret and safe. Store passwords, secrets, contacts or just keep your diary private. KEY FEATURES: • Use Touch ID or passcode to safely lock access to your private notes. • Set a security question and answer in case you forget your passcode. • Safely Backup your valuable notes to iCloud. • Quickly Sync notes between iPhone & iPad with iCloud. • Sort notes list by name, date or manual. • Select notes font style and size. • Insert images & photos into notes. • Print your notes. • Send notes via text message or email. • Save notes to Camera Roll. • Support for Emoji Emoticons. This app allows you to automatically backup your notes for $9.99 a year through an auto-renewing subscription. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period You will not be able to cancel a subscription during the active period. You can manage your subscriptions in the Account Settings after purchase. Terms of use: http://www.katans.com/terms-of-use Privacy policy: http://www.katans.com/privacy-policy This app can be freely used up to two notes. A SINGLE PURCHASE COVERS ALL YOUR IPHONE AND IPAD DEVICES.
Calculator+ Secure Vault
Securely store and protect your private photos, videos, notes, and credit card information. This encrypted vault offers features like a screenshot blocker and emergency exit for ultimate privacy and peace of mind.
- Photo & Video Vault
- Notes & Credit Cards Storage
- Cloud Backup (iCloud/Google Drive)
- Screenshot Blocker
- Emergency Exit
- Dynamic Security Screen
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Calculator Vault – Hide Photos, Videos & More Calculator Vault is a powerful privacy app that looks and works like a normal calculator, but behind a secret passcode lies your private vault. Protect your personal files, sensitive information, and private memories in a secure, encrypted space that only you can access. Disguised as a Calculator A fully functional calculator on the outside. Your private vault on the inside. Enter your secret passcode to unlock hidden content. Hide Photos & Videos Store private photos and videos safely away from your gallery. Your files remain protected and accessible only to you. Secure Important Information Keep your personal data organized and protected: • Photos • Videos • Audio Files • Documents • Notes • Passwords • Contacts • Credit Card Information • To-Do Lists Decoy Vault Create a second vault with a different passcode. If someone asks to open the app, show a harmless vault while your real data remains hidden. Panic Switch Instantly exit your vault when needed. Trigger emergency actions by: • Covering the screen • Shaking the device • Placing the phone face down Choose what happens next: • Open Calculator Mode • Return to Home Screen • Open Safari • Open Maps • Open Music Secret Camera Capture photos and videos directly from the calculator interface using custom gestures. • No flash • No shutter sound • Fast and discreet access Secure Cloud Backup Protect your data with encrypted backups. • Google Drive support • iCloud Drive support • Automatic backup options • Sync across your devices Advanced Security • Passcode Protection • Face ID / Touch ID Support • Encrypted Storage • Decoy Vault Protection • Panic Exit System Wireless File Transfer Transfer files between your devices quickly and securely without complicated setup. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is monetization model: Calculator+ Secure Vault at free with in-app purchases against Lock Notes's subscription. Lock Notes's advantage is ads (none vs shown) and review sentiment (73% vs 50%). On price, rating, update cadence and in-app purchases 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. Lock Notes sells 3 in-app purchases, starting at $14.99 per year and Calculator+ Secure Vault sells 4 in-app purchases, starting at $5.99 per 3 months. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Lock Notes against 4.5 for Calculator+ Secure Vault. That said, the two scores are not equally well evidenced: Lock Notes has 1.1K ratings behind it against 105, so its average is the more settled of the two. Written reviews are what separate them: 73% of Lock Notes's written reviews are positive against 50% of Calculator+ Secure Vault's.
Lock Notes ships an update every 10 days, Calculator+ Secure Vault fortnightly. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.
| Parameter | Lock Notes | Calculator+ Secure Vault |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.1K ratings) | 4.5 (105 ratings) |
| Positive reviews | 73.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 1.1K — better | 105 |
| Update frequency | Every 10 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 8 MB | 72 MB |
| Age rating | 4+ | 17+ |
| Developer | JulyApps Ltd | Ahmet Selman Durak |
Customer experience
Lock Notes
Calculator+ Secure Vault
Bugs and requests
Lock Notes
Reported bugs
3 issues- Notes disappearing after updates
- Inability to access notes after device reset
- Sync issues between devices
Requested features
5 requests- Advanced formatting options
- Ability to change passcode
- Improved search capabilities
- Folder/organization system
- Better backup and restore options
Calculator+ Secure Vault
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lock Notes
- Auto Backup$14.991 Year
- Unlimited Notes$4.99
- Lock Notes Pro$9.99
Calculator+ Secure Vault
- Calculator + 3 Monthly Premium3 Days trial$5.993 Months
- Calculator+ 6 Monthly Premium3 Days trial$9.996 Months
- Calculator+ Annual Premium3 Days trial$17.991 Year
- Calculator+ Lifetime Premium$39.99
Questions
Is Lock Notes free?
Is Calculator+ Secure Vault free?
Which has better reviews, Lock Notes or Calculator+ Secure Vault?
Do Lock Notes or Calculator+ Secure Vault have ads?
Which is updated more often, Lock Notes or Calculator+ Secure Vault?
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