Keyboard² vs Guard7
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keyboard²
This custom keyboard app allows you to play musical notes and chords directly from your device's keyboard. It supports entering numbers, mathematical symbols, and ABC music notation, with the ability to play sounds and chords.
- Play musical notes and chords
- Enter numbers and mathematical symbols
- Supports ABC music notation
- Play sounds
- Custom keyboard functionality
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Keyboard² is a custom keyboard that enables you to play the keyboard on your iPhone & iPad! [Function] - You can enter numbers and mathematical symbols. - You can enter the musical scales of ABC music notation. - You can play sound. - You can play a chord. [Attention] - You have to do the additional procedure of Keyboard² to use it. (Preferences -> General -> Keyboard) - Then, you also have to turn on the "Full Access" for Keyboard². * Please don’t worry - we do not collect your data at all. [Support] - Please do not hesitate to contact us for any defect reports or questions/requests. - We will consider any requests for additional functions.
Guard7
This tool provides robust encryption and decryption for files and emails, utilizing industry-standard cryptography. It simplifies complex cryptographic tasks for secure communication and data protection.
- Encrypt and decrypt files
- Encrypt and decrypt emails
- Sign and verify files
- Organize contacts in groups
- Efficient recipient management
- Graphical frontend for GnuPG
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Reliable, strong, safe. This is the iOS version of Guard7. Guard7 is a general purpose cryptography tool that can be used to encrypt, decrypt email and file, sign and verify files. It is the graphical frontend for the GNU Privacy Guard (GnuPG or GPG, http://www.gnupg.org) with additional features. Guard7 is an encryption and decryption system based on industry standard that can ensure the complete security of business negotiations or personal messages. It was developed to make the daily work with GnuPG simple and efficient. Why -------------------- The most difference between "public key cryptography" and normal "password protected cryptography" is that the first approach don't ask you to distribute any password to anyone or any unsafe place, e.g. email, chat app, or internet. And, you need an encryption tool that has industrial strength to protect your confidential information. Additional Features -------------------- Organise contacts in groups, then fast and efficiently organise dozens of recipients to send and receive file or email without setup recipients one by one and answer a bunch of boring questions and input repeat info again and again. Encrypt and decrypt a file just requires several taps, it's very simple, convenient and efficient. Common Tasks -------------------- a. list all contact groups, list all member of a group. b. encrypt and decrypt a file. c. set up recipients and encrypt an email, decrypt an encrypted email. d. sign and verify files. Thousands of people already benefited from the app in 2018 that year, but until today, they still..., what they are, then what they said what they doing. what the intention of the commenter is obvious. more maliciously attack, more affirmation of the app.
Screenshots
Verdict
The clearest difference is review sentiment: Keyboard² at 100% against Guard7's 0%. Keyboard² also leads on price (Free vs $6.99) and rating (4.0 vs 3.5). Guard7's advantage is update cadence (daily vs every 12 months). On ratings volume, ads, in-app purchases 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
Keyboard² is free to download; Guard7 costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Keyboard² holds the better App Store score, 4.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of Keyboard²'s written reviews are positive against 0% of Guard7's.
Keyboard² ships an update every 12 months, Guard7 daily. The most recent releases landed on October 17, 2026 and September 18, 2026 respectively.
| Parameter | Keyboard² | Guard7 |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | 4.0 (1 ratings) — better | 3.5 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 12 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuto Nakamura | 斌 虞 |
Customer experience
Keyboard²
Guard7
In-app purchases
Keyboard²
No in-app purchases
Guard7
No in-app purchases









