iSafe Pro vs Twin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Passcode and fakecode security
- Multiple login styles
- Organized file categories
- Powerful video player
- Private browser
- Support for various file formats
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- 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.
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.
- 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
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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
Verdict
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
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.
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.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | iSafe Pro | Twin |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 4.1 (711 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 62.3% of reviews | 76.0% of reviews — better |
| Number of ratings | 711 — better | 8 |
| Update frequency | Fortnightly | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 107 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Fanship | Hiroyuki Ueda |
Customer experience
iSafe Pro
Twin
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
iSafe Pro
- Remove Ads$0.99
Twin
No in-app purchases









