Calculator vs Calculator Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.
- Basic and scientific calculators
- Type or write math expressions
- Inline equation solving
- Variable creation and use
- Equation graphing
- Unit and currency conversion
- Calculation history
Read full descriptionHide full description
Calculator Easily type out math with the basic and scientific calculators for quick solutions. With the Math Notes calculator, solving expressions, creating and using variables, and even plotting equations on graphs is as simple as typing or writing them out. Basic & Scientific Calculators Type complete expressions with parentheses, and basic and scientific operations before hitting equal for the final answer. With history, you can keep track of previous calculations, and easily copy or switch back to previous results. Unit Conversion Unit conversions in the basic and scientific calculators help you quickly convert between hundreds of units including length, speed, temperature, weight and more. You can even get up-to-date conversions for currencies from around the world. Math Notes Type math or write it out using Apple Pencil on iPad, and Math Notes will solve your expressions inline as soon as you add an equal sign. Math Notes supports all the same functions as the basic and scientific calculators, unit conversions and even math written vertically. Variables Create variables by typing or writing their name, an equals sign and then their value. Name them with letters or words. Tap on a variable’s value to easily adjust the value up or down. And use your variables in expressions, and even graphed equations across a Math Note. Graphing Type or write an equation, and with a tap you can graph it in Math Notes. Zoom, pan around, or resize your graph to get it just right. You can even add multiple equations on the same graph to see how they’re related.
Calculator Lock
Securely hide your private photos, videos, contacts, and passwords behind a disguised calculator interface. Protect your sensitive files with a secret vault and access them only through the app's unique interface. Features include intruder selfies and cloud backups.
- Photo hiding
- Video hiding
- Contact hiding
- Password manager
- Disguise mode
- Intruder selfie
- Cloud backup
Read full descriptionHide full description
Calculator Lock is photo hiding app where you can hide Photo, video lock, under Secret Vault protected by hidden calculator Lock app. This Secret photo vault calculator video vault is just work as photo lock and video locker where you can lock your files like, gallery Vault. Vault app can get photo album, gallery or file manager private photos, videos, movies and you can play hidden videos inside Calculator Vault. It has a Built-in Photo Viewer to view lock photo. It is Easy to Manage, Delete, Unhide, hide Pictures in gallery vault. It also provides you with other useful functions, including Vault app, video locker, Secure vault, Hide Photo etc. ●● Secret calculator vault Key Features ●● ===================================== ● Photo hide Photo lock will be stored data in hidden photo vault calculator to access by photo lock app. Hide Photo will not be shown in any other vault app, photo album, gallery vault or file manager. You can play or view all your locked photos inside a safe calculator app with an amazing Inbuilt Image viewer. ● Hide Video Inside Video vault you can play lock video by Secure vault with inbuild video player. when you hide my photo keep others away from your private video lock. You can hide video inside Secret Calculator safe. The calculator app hider provides you to lock video and play that video lock inside the app. ● Hidden calculator vault app The calculator vault app provides you so many new futures besides photo lock and video lock. Inside safe Calculator app hider you can create new contact and hide contact. ● Lock files in secret gallery Photo hiding app you can create & share your Personal Notes, hide Contact, hide pics within secret calculator app without exporting it. You can access it inside the calculator app hider ● My Password Manager My Password Manager is unique future for HidePass where you can Hide Password and store all password with protected files, and can only be see inside hidden gallery lock. Secure Vault has password lock in encrypted formats with Secret calculator app. ● Restore media in private photo vault You can Restore all of your data from secret photo vault, once you open app to hide pictures inside hidden gallery lock, you can anytime export secret gallery lock data within Secret Calculator and it will move from Secret vault to your phone. ● Disguise Mode in Spy calculator Lock Calculator Lock has Disguise Mode feature that enables users to change the app's icon or logo to something less conspicuous, providing an extra layer of privacy and security. ● Intruder selfie in Photo Lock App Snap Intruder Capture selfie photos of Intruder when someone tries to break in your Secret vault with wrong passwords. ● iCloud Backup and Google Drive Backup Securely back up your data using Google Drive or iCloud backup options. This feature ensures that your data safely stored and can be restored whenever needed. ● App Migration Easily migrate your data from an old device to a new one it allows seamless transfer of all your data ensuring you don't lose any data during the transition. -----------FAQ----------- Q: How to open? A: Enter your password on hidden calculator photo vault and press '=' button to open. Q: What if I forget my password? A: You can enter “11223344=” for master reset your password by verifying your security question and reset the password. => IMPORTANT - Calculator Lock - Photo Lock & safe Calculator Vault app does not copy or store your Photos, Videos, Audio, Contacts, Notes, Passwords, etc. - Do not uninstall Calculator Vault - Secure Vault app otherwise, all your files will be lost forever. Here is EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calculatorlock.macymind.com/privacy-policy-calculator-lock.php
Screenshots
Verdict
The clearest difference is rating: Calculator Lock at 4.6 against Calculator's 3.0. Calculator Lock also leads on review sentiment (76% vs 38%) and update cadence (every 2 weeks vs every 4 months). Calculator's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price, ratings volume 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. Calculator Lock sells 7 in-app purchases, starting at $1.99 per 7 days. Calculator asks for nothing beyond the download.
Calculator Lock holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 9.8K and 6.1K respectively. Written reviews point the same way: 38% of Calculator's written reviews are positive against 76% of Calculator Lock's.
Calculator ships an update every 4 months, Calculator Lock every 2 weeks. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.
| Parameter | Calculator | Calculator Lock |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (9.8K ratings) | 4.6 (6.1K ratings) — better |
| Positive reviews | 37.8% of reviews | 75.7% of reviews — better |
| Number of ratings | 9.8K — better | 6.1K |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 80 MB |
| Age rating | 4+ | 17+ |
| Developer | Apple | ZipoApps |
Customer experience
Calculator
Calculator Lock
User reviews
Calculator
From 9.8K App Store ratingsWhat we love
- 👍 Basic calculator functionality
- 💡 Math notes feature
- 🚀 Clean, simple design
Room to improve
- 🐛 Calculation errors
- 🔍 Lack of history/memory functions
- 🤔 Inconvenient to access advanced features
- 🤯 Frustrating to fix mistakes
- 🙄 Removed useful features in recent updates
Calculator Lock
From 6.1K App Store ratingsWhat we love
- 🔒 Hidden app
- 👍 Good features
- 👍 Simple and easy to use
- 🔒 Secure vault for photos, videos, and passwords
Room to improve
- 🐛 Buggy (doesn't save downloaded videos, can't paste in notes)
- 🔍 App name not very discreet
- 💸 Too much advertising
Bugs and requests
Calculator
Reported bugs
3 issues- Calculator disappearing from home screen
- Incorrect calculation results
- Inconsistent behavior with parentheses and scientific functions
Requested features
5 requests- Restore ability to repeat calculations with '='
- Add 'clear' button
- Show full calculation history
- Improve usability for advanced math
- Bring calculator to iPad
Calculator Lock
Reported bugs
4 issues- Doesn't save downloaded videos to gallery
- Can't paste information in notes
- Intruder selfie feature not working
- App icon change not working
Requested features
3 requests- Ability to change app name
- Sync between devices
- Ability to paste information in notes
In-app purchases
Calculator
No in-app purchases
Calculator Lock
- Calculator Lock Pro Weekly$1.997 Days
- Hide Photos & Videos3 Days trial$4.991 Month
- Calculator Lock Pro Yearly$14.991 Year
- Remove Ads$3.99
- Calculator Lock (Remove Ads)$3.99
- Calculator Lock Pro (Discount)$14.99
Show 1 moreShow fewer
- Calculator Lock Pro (Lifetime)$29.99
Questions
Is Calculator free?
Is Calculator Lock free?
Which has better reviews, Calculator or Calculator Lock?
Do Calculator or Calculator Lock have ads?
Which is updated more often, Calculator or Calculator Lock?
Other comparisons















