Comparison

iSafe Pro vs Twin

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

Head to head
About

iSafe Pro

Secure your sensitive documents, photos, and videos with a digital vault. This app offers multiple unlock methods, including a fake code to hide specific content from prying eyes. Organize your files into categories and enjoy a powerful video player and private browser.

Highlights
  • Passcode and fakecode security
  • Multiple login styles
  • Organized file categories
  • Powerful video player
  • Private browser
  • Support for various file formats
Features
Read full description

- Limited time on SALES only - Get it before the price raise up!!! *** App of the Day *** Top Overall in 25 countries Top Utility in 58 countries If you want to protect your documents from spying eyes, then iSafe is for you. This app is like a real safe for your iPhone, locked away with. special code. And you even hide Top Secret stuff from extra curious, like girlfriends, by giving them a fake code that only allows them to see certain content-sneaky ;) An app that could just save your life! Awesome Features: • Passcode & Fakecode You can unlock the app by using either passcode or fakecode. Passcode: Both unlocked and locked items will be shown Fakecode: Only unlocked items will be shown Confidential: Enter the passcode, pull down and refresh to show the confidential directories. So, enter the fakecode if your girlfriend asks you to unlock iSafe. • Login Styles You can choose many unlock tricks, such as 4 numeric password, 9 dots lock, or disguise as piano, xylophone, ATM… • Best Organization All files will be assigned to three categories: Photos, Movies and Docs. You can create locked albums, movie clips or directories in each categories. • Powerful Video Player iSafe can play almost all formats of video, no need to convert anymore. • Private Browser Hide your footprint. Supports Various File Formats - Images: png, jpg, jpeg, bmp, tif, gif - Videos: mp4, mov, m4v, 3gp, flv, f4v, mpg, mpeg, wmv, rmvb, mkv, asf, webm - Audios: mp3, m4a, m4r, aac, caf, wma - Plain Text: txt, php, cgi, asp, h, m, c (editable) - Rich Text: rtf, pdf - iWorks: pages, numbers, key - MS Office: doc, xls, ppt, docx, xlsx, pptx - Web: htm, html, webarchive - Archive: zip, rar - Others: …… (unreadable, save only) Multi-language: more then 20 languages, including Hindi, Persian. ####################### iSafe in Apple Watch Tutorial: 1. Open the iSafe in iPhone 2. Pull the navigation bar to right to show the menu 3. Press the gear in the top of menu and go to Settings page 4. Press the information button in the top right corner of the Settings page, you can see the tutorial page.

About

Twin

This app combines two calculators into one, allowing for side-by-side or stacked calculations. Easily copy and paste results between calculators or to other apps. It displays formulas for clarity and handles basic arithmetic operations.

Highlights
  • Two calculators in one
  • Side-by-side and stacked display
  • One-touch copy/paste between calculators
  • Copy results to iPhone memory
  • Formula display
  • Basic arithmetic operations
Features
Read full description

A simple and easy-to-use calculator app that combines two calculators into one. Calculators are displayed side by side when the screen is horizontal, and vertically when the screen is vertical. In addition to being able to perform separate calculations with each calculator, calculation results can be also copy and paste with one touch, so you can perform other calculations during calculations, making it even more convenient to use than you might imagine. There is also a free version with ads. Please try it first. https://apps.apple.com/jp/app/t-calc-lite/id1630026837?l=jp 【feature】 1. Calculation results can be copy and paste between two calculators with one touch. 2. The result calculated can be input from one calculator to the other with one touch. ・When press the "→" key, the calculation result of the left calculator is entered at the end of the formula on the right calculator. ・When press the "←" key, the calculation result of the right calculator is entered at the end of the formula on the left calculator. 3. add, subtract, multiply and divide is performed. Do multiplication and division first, then add and subtract. 4. Display the formula The entered formula is displayed under the result, so you can easily check the operations. 5. Calculation results can be copied to iPhone’s memory Calculation results can be pasted into other apps as text , so transcription errors will not occur. Example of use When you find a product for 988 yen for 3 pieces and a product for 1245 yen for 4 pieces while shopping, you can easily calculate "Which is cheaper?" And “How cheaper?"with this calculator. 1) Use the left and right calculators to find the unit price of the product (unit price = product price/number). 2) Tap the "- key" and "arrow key" on either the left or right calculator to calculate the unit price difference. Limitations ・Answer can be calculated up to 9 digits, minimum 0.000000001. Note The free version can be downloaded from https://apps.apple.com/jp/app/t-calc-lite/id1630026837?l=en

Screenshots

iSafe Pro4 screens
Twin4 screens

Verdict

The call

The clearest difference is rating: Twin at 5.0 against iSafe Pro's 4.1. Twin also leads on in-app purchases (none vs 1) and ads (none vs shown). iSafe Pro's advantage is ratings volume (711 vs 8) and price ($0.99 vs $1.99). On update cadence 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

iSafe Pro costs $0.99 and Twin $1.99 up front. iSafe Pro sells 1 one-off in-app purchase. Twin asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Twin holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: iSafe Pro has 711 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 62% of iSafe Pro's written reviews are positive against 76% of Twin's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard8 real differences · 2 level
iSafe Pro versus Twin: the parameters behind the verdict, then further details
ParameteriSafe ProTwin
Price$0.99 — better$1.99
Rating4.1 (711 ratings)5.0 (8 ratings) — better
Positive reviews62.3% of reviews76.0% of reviews — better
Number of ratings711 — better8
Update frequencyFortnightlyFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size107 MB1 MB
Age rating17+4+
DeveloperFanshipHiroyuki Ueda

Customer experience

iSafe Pro

All ratings711 ratings
Positive75.7%
Neutral7.9%
Negative16.5%
Written reviews1,264 reviews
Positive62.3%
Neutral8.2%
Negative29.5%

Twin

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews25 reviews
Positive76.0%
Neutral4.0%
Negative20.0%

Bugs and requests

iSafe Pro

Reported bugs

4 issues
  • Defaulted websites no longer supported
  • Crashes on certain actions
  • Incompatible with iOS 16
  • Loss of data after updates

Requested features

4 requests
  • File sharing between devices
  • Permanent passcode
  • Improved video playback
  • Local network support

Twin

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

iSafe Pro

One-time1
  • Remove Ads$0.99
None

Twin

No in-app purchases

Questions

Is iSafe Pro free?
iSafe Pro costs $0.99, and also offers in-app purchases.
Is Twin free?
Twin costs $1.99, with no in-app purchases.
Which has better reviews, iSafe Pro or Twin?
Twin is rated higher. iSafe Pro averages 4.1 out of 5 from 711 ratings, while Twin averages 5.0 from 8 ratings.
Do iSafe Pro or Twin have ads?
iSafe Pro shows ads; Twin does not.
Which is updated more often, iSafe Pro or Twin?
iSafe Pro ships an update fortnightly, and Twin fortnightly. Most recently, iSafe Pro was updated on October 27, 2026 and Twin on October 25, 2026.

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