Comparison

Level HD. vs App Secret Pro

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

Head to head
About

Level HD.

This utility app functions as a digital carpenter's level, providing accurate measurements for various tasks. It is compatible with both iPhone and iPad devices.

Highlights
  • Carpenter's level
  • iPhone support
  • iPad support
  • URL scheme integration
Features
Read full description

√ Carpenter's level √ Supports iPhone and iPad Level. URL scheme is "EWBubbleLevel://"

About

App Secret Pro

Securely store photos, videos, notes, and contacts with multiple layers of customizable protection. Prevent unauthorized access to your private information with various lock styles and extra security features.

Highlights
  • Multiple lock styles (passcode, combination, dot-pattern)
  • Private photo and video albums
  • Secure notes with folder organization
  • Protected reminders
  • Voice memo recording and sharing
  • Private contact management
  • Break-in reports and decoy mode
Features
Read full description

App Secret is your personal vault for securing sensitive photos, videos, notes, contacts, and more — all protected by multiple layers of customizable security. Whether you’re guarding personal memories or confidential information, App Secret ensures only you have access. Ever lent someone your phone only to catch them swiping through your gallery, notes, or reminders? With App Secret, that stops now. Easily lock your private content with a passcode, combination, or dot-pattern, and keep prying eyes out of your business. -- KEY FEATURES -- Multiple Lock Styles • Numeric passcode lock • Combination lock • Dot-pattern lock for enhanced security Private Photos & Videos • Create and lock individual albums • Import from your photo library or take photos in-app • Export back to your device easily • Move, copy, and paste between albums Secure Notes • Organize notes into lockable folders • Move, copy, paste, and search your notes • Simple folder management for better organization Protected Reminders • Create reminders in secure folders • Copy, move, and paste with ease • Keep tasks and plans private Voice Memos • Record, rename, delete, and playback • Share voice memos securely • Optional speaker output Private Contacts • Fully-featured contact management • Add, edit, delete, and search contacts • Batch import/export with vCard support • Add custom fields beyond standard info Extra Security Tools • Break-in reports • Decoy mode with a fake password • Universal app — works on both iPhone & iPad with a single purchase • Intuitive, easy-to-use interface Your privacy matters. Take control of your data with App Secret — the smart, simple, and secure solution for keeping your private life truly private. Visit us for more great apps: https://app2pro.com • Terms of Service: https://airdisk.app/terms-of-service/ • Privacy Policy: https://airdisk.app/privacy-policy/ • Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Level HD.2 screens
App Secret Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Level HD. at 84% against App Secret Pro's 41%. Level HD. also leads on in-app purchases (none vs 3) and rating (4.9 vs 4.4). App Secret Pro's advantage is update cadence (monthly vs every 4 months). On ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

Level HD. costs $0.99 and App Secret Pro $3.99 up front. App Secret Pro sells 3 in-app purchases, starting at $1.99 per month. Level HD. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Level HD. holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 85 and 124 respectively. Written reviews point the same way: 84% of Level HD.'s written reviews are positive against 41% of App Secret Pro's.

UpkeepUpdate frequency

Level HD. ships an update every 4 months, App Secret Pro monthly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

Scorecard7 real differences · 3 level
Level HD. versus App Secret Pro: the parameters behind the verdict, then further details
ParameterLevel HD.App Secret Pro
Price$0.99 — better$3.99
Rating4.9 (85 ratings) — better4.4 (124 ratings)
Positive reviews83.7% of reviews — better41.4% of reviews
Number of ratings85124 — better
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size24 MB88 MB
Age rating4+4+
Developer良峰 侯Felix Yew

Customer experience

Level HD.

All ratings84 ratings
Positive96.4%
Neutral1.2%
Negative2.4%
Written reviews135 reviews
Positive83.7%
Neutral6.7%
Negative9.6%

App Secret Pro

All ratings124 ratings
Positive83.9%
Neutral4.8%
Negative11.3%
Written reviews162 reviews
Positive41.4%
Neutral11.1%
Negative47.5%

User reviews

Level HD.

From 85 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🎯 Accurate measurements
  • 📱 Always handy on phone
  • 🛠️ Useful for DIY and repairs
  • 🚀 Quick to open and use

Room to improve

  • 🐛 Inaccurate ruler/scale on some devices (iPad mini)
  • 🐛 App not optimized for older iPhones (iPhone 5)
  • 🐛 Issues with screen rotation/orientation on some iOS versions
  • 🐛 App not working on older iOS versions (iOS 11)
  • 🐛 Some users reported being charged despite being advertised as free

App Secret Pro

From 124 App Store ratings

What we love

  • 👍 Great app, very useful
  • 🔒 Good privacy features
  • ✨ Improved after updates
  • 👍 User-friendly interface
  • 🌟 Best app of its kind

Room to improve

  • 🐛 App crashes frequently
  • 🐛 App won't open
  • 🐛 Data loss issues
  • 🐛 Import/upload errors
  • 🐛 Slow performance

Bugs and requests

Level HD.

Reported bugs

7 issues
  • Ruler/scale is inaccurate on iPad mini
  • App not optimized for iPhone 5
  • Screen rotation issues on newer iOS versions
  • App not working on iOS 11
  • App stopped working after a few days for some users
Show 2 more
  • Volume buttons interfere with measurements on the left side
  • Inconsistent bubble behavior when laying flat

Requested features

8 requests
  • Option to change color scheme
  • Add calibration for the round level
  • Improve ruler accuracy on iPad mini
  • Fix screen rotation bugs on newer iOS versions
  • Ensure compatibility with older iPhones and iOS versions
Show 3 more
  • Option to switch to 3-tube mode
  • Add a lock button for screen orientation
  • Move the ruler to the right side to avoid button interference

App Secret Pro

Reported bugs

52 issues
  • Importing video does nothing
  • Deleted all photos
  • App cannot be opened
  • App won't even open
  • Privacy policy concerns (data collection)
Show 47 more
  • Where are my photos and videos?
  • Password log uses rear camera and is useless
  • Green dot appears when using app (camera usage?)
  • Bug in fake passcode: sub-folder lock redirects to main files
  • App is very buggy, randomly closes often
  • Paid for it and it doesn't work
  • Cannot upload
  • Cannot play video
  • App crashes before anything can be done
  • Last update was 2 years ago
  • Error while uploading photos
  • Photos not added, program became garbage
  • App crashes after entering password
  • Cannot import photo that was already taken after update
  • Passcode will not set on new device
  • Cannot see all photos in a folder (over a certain amount)
  • App crashes when pressing info icon on a pic
  • Last version cannot open the app
  • App crashes before opening
  • App crashes immediately after entering password
  • Lost all data after update
  • App crashes before opening
  • Photos are mixed up
  • App crashes every time trying to open
  • App crashes immediately
  • App doesn't open anymore
  • Crashes at passcode entry
  • Won't open after update
  • App crashes since iOS 8 update
  • App crashes after update, lost all data
  • Many bugs in this version
  • Media not stable, clicking image goes to first one
  • App quits immediately after update
  • Cannot open the program
  • App crashes every time to unlock
  • Cannot access photo in the middle of the album
  • Clicking on any picture automatically goes to the first one
  • Forgot my pass, how to get it back?
  • Contacts issues, application crashes while importing
  • Notes disappear or not saved
  • Password can be skipped by closing and reopening from multitask tab
  • Photos and notes do not sync
  • Fake log does not work properly
  • Passcode lock does not work, random passcode accepted
  • Fake password opens master access files
  • App crashes when trying to delete reminders
  • Problem accessing photos even if permission is on

Requested features

10 requests
  • Import notes and contacts directly from iPhone
  • Ability to reorder files
  • Login with fingerprints
  • Continuous shooting on built-in camera
  • Touch ID support
Show 5 more
  • Wi-Fi sharing between PC and app
  • Log in report with location
  • Arabic language support
  • Disable unlock sound
  • Photo folders displayed by upload date

In-app purchases

None

Level HD.

No in-app purchases

3 purchases

App Secret Pro

Subscriptions2
  • iCloud Sync Monthly$1.991 Month
  • iCloud Sync Yearly$12.991 Year
One-time1
  • Reset Password$1.99

Questions

Is Level HD. free?
Level HD. costs $0.99, with no in-app purchases.
Is App Secret Pro free?
App Secret Pro costs $3.99, and also offers in-app purchases.
Which has better reviews, Level HD. or App Secret Pro?
Level HD. is rated higher. Level HD. averages 4.9 out of 5 from 85 ratings, while App Secret Pro averages 4.4 from 124 ratings.
Do Level HD. or App Secret Pro have ads?
Neither Level HD. nor App Secret Pro shows ads.
Which is updated more often, Level HD. or App Secret Pro?
Level HD. ships an update every 4 months, and App Secret Pro monthly. Most recently, Level HD. was updated on November 6, 2026 and App Secret Pro on November 8, 2026.

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