synchroCalc vs VPN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
synchroCalc
This utility converts numbers between binary, decimal, and hexadecimal formats. It offers adjustable bit sizes and supports various arithmetic and bitwise operations, ideal for developers and engineers.
- Binary, decimal, hexadecimal display
- Adjustable bit sizes (64/32/16/8-bit)
- Signed/unsigned number switching
- 12 arithmetic and bitwise operations
- Copy/paste functionality
- Supports iPhone, iPad, and iPod touch
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synchroCalc is a calculator that display a number in binary, decimal and hexadecimal format. For a Programmer, a Developer, a Engineer, a Coder, and a Hacker. ▼ FEATURES: - Enterable Hex / Dec / Bin numbers. - Adjustable bit sizes: 64 / 32 / 16 / 8 -bit. - Switchable signed / unsigned numbers. - 12 operations: +, -, ×, ÷ / AND, OR, XOR, MOD / Left Shift, Right Shift, NOT, 2's complement. - Designed for the iPhone/iPod touch and iPad. - Option to remove ads.(In-App Purchase) ▼ HOW TO USE: - Tap the Hex/Dec/Bin number of displays that you want to enter. - Tap the bit size button, then change a bit size. Tap the signed button, then toggle a number signed/unsigned. - Long tap the display, then copy/paste the number. - View menu by pull the left side bar. ▼ EXAMPLE: - It's Over 0x2328!!
VPN
Access websites and services securely and anonymously with a single touch. This application offers a fast and unlimited VPN experience, helping to protect your network security and potentially improve game speeds. Enjoy global server access with minimal ads.
- One-touch access to websites and services
- Fast and unlimited VPN connection
- Global server network
- Maximum security and anonymity
- Network security protection
- Game speed optimization
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Our VPN is a secure, fast, unlimited and convenient VPN that allows you to access websites and services with just one touch. Our free VPN will help you speed up games and protect the security of your network on the Internet. Why is our free VPN the best VPN for you?! - Lots of free and fast servers all around the world! Choose a free server convenient for you anywhere in the world! If you do not want to choose, then we will do it for you and connect you to the fastest one with one touch! - Maximum security and anonymity! We do not save and do not share with anyone the history of visiting websites and apps. Website owners will not know your real IP address. - Convenient and very easy! Simply install our app, run it and press one "connect" button, after that you will get access to any website! - Minimum ads! Privacy Policy: https://docs.google.com/document/d/1iKq8rnj7IIDWW4m_DBjx5saAzsdmBtGvtVnwbc54IoM Terms of Service: https://docs.google.com/document/d/19frdep3_HPB8pXL9pCydH_8Zny8FstmlKCvG3ULkaL0
Screenshots
Verdict
The clearest difference is rating: synchroCalc at 5.0 against VPN's 4.2. synchroCalc also leads on ads (none vs shown) and review sentiment (71% vs 54%). VPN's advantage is update cadence (weekly vs every 4 months) and ratings volume (7.3K vs 3). On price, in-app purchases, monetization model 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. synchroCalc sells 1 one-off in-app purchase and VPN sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
synchroCalc holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: VPN has 7.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 71% of synchroCalc's written reviews are positive against 54% of VPN's.
synchroCalc ships an update every 4 months, VPN weekly. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.
| Parameter | synchroCalc | VPN |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.2 (7.3K ratings) |
| Positive reviews | 70.6% of reviews — better | 53.9% of reviews |
| Number of ratings | 3 | 7.3K — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 27 MB | 129 MB |
| Age rating | 4+ | 4+ |
| Developer | Akeome Studio | com.stolitomson.vpn |
Customer experience
synchroCalc
VPN
Bugs and requests
synchroCalc
Not enough reviews yet to summarise bugs or requests.
VPN
Reported bugs
4 issues- Inability to connect to servers
- Sudden disconnections during use
- App freezes and becomes unresponsive
- Compatibility issues with newer OS versions
Requested features
4 requests- More server location options
- Improved stability and reliability
- Automatic reconnection after disconnects
- Reduced ads and in-app purchases
In-app purchases
synchroCalc
- Remove Ads & display expression$1.99
VPN
- 1 month$4.991 Month
- 6 months$14.996 Months
- 1 Year$22.491 Year
Questions
Is synchroCalc free?
Is VPN free?
Which has better reviews, synchroCalc or VPN?
Do synchroCalc or VPN have ads?
Which is updated more often, synchroCalc or VPN?
Other comparisons
