Gwaidigo2 vs Epoch X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gwaidigo2
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Reliable, strong, safe. This is the iOS version of Gwaidigo. Gwaidigo is a general purpose cryptography tool that can be used to encrypt, decrypt email, file, sign and verify files. It was designedly developed as the next generation of the daily cryptography tool because the RSA based on cryptography algorithm is almost out of date. The internal details of Gwaidigo was completely hidden and has builtin multiple cryptography layers for inner data protect that makes it very strong. As a public key crypto-system used for secure file and message transmission, it adopted a customised version of the stable and reliable ECC (Elliptic Curve Cryptography) algorithm used by bitcoin to guarantee the reliableness of the software. The format of the Gwaidigo's public key is NOT public that makes the entire system very strong and very difficult for reverse engineering. Gwaidigo is an encryption and decryption system based on industry strength that can ensure the complete security of business negotiations or personal messages. It was developed to make the daily cryptography works on iOS easy 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. General Features ------------------ * Group and key pair management. * Easily manage hundreds of contacts by company and department. * Setup recipients by a tap on group without tap them one by one, easily organise dozens of recipients for email message. * Encrypt, decrypt email and file just requires several taps, it's very efficient, convenient and simple. * Efficiently manage local files by rename, cut, copy, paste, and duplicate operations. * Easily manage multiple primary key that helps switching between different master identities. * Without complex configuration, double boring questions. Basic Usage ------------------ You don't need to know more about public key encryption at all, you can get industry strength information protection with just a few simple steps. 1. Generate a key pair for yourself. Carefully keeping your private key (security key) and never leak to others. 2. Distribute your public key. Send your public key to others then they can use it to encrypt email or file for you. 3. Import other people's public key. Encrypt email or file with others people's public keys. 4. Decrypt message or file with your own private key. Common Tasks ------------------ a. list all groups, list all member of a group. b. encrypt and decrypt a file. c. set up recipients and then encrypt an email, decrypt an encrypted email. d. sign and verify file. Why another cryptography tool? There should have another cryptography utility that does not adopt RSA algorithm and has industrial strength to protect user confidential information.
Epoch X
This app helps you visualize and manage your time with precision. Track your progress through the year, fiscal periods, and countdown to important events. It offers tools for planning, collaboration, and understanding dates.
- Yearly day and week tracking
- Fiscal quarter management
- Event countdowns
- Date calculator
- Team collaboration features
- Home and lock screen widgets
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Today is the day to start seeing time clearly! Stop losing track of where you are in the year. Get Epoch X and improve your time and life. Epoch X transforms how you track time by showing you exactly where you stand—whether that's Day 156 of the year, Week 22, Q2 of your fiscal year, or 47 days until deployment. Built for military personnel, government contractors, business professionals, and everyone else who needs precision time tracking to help their life and business. MAIN CARD - Your Year Command Center Track the current day (1-365) and week (1-52) in multiple formats: ordinal, simple numbers, or custom views. Split your year into four calendar quarters with powerful tools: Create deadlines with start and due dates Add notes for each quarter and share with teams Track progress with visual indicators Get smart notifications for upcoming deadlines Auto-populate your calendar with day/week numbers Widgets for home screen and lock screen FISCAL CARD - Federal Fiscal Year (Oct 1 - Sep 30) Track the government fiscal calendar with four fiscal quarters, deadline management, team collaboration notes, progress tracking, calendar integration, and widgets. Perfect for federal contracts, budget cycles, and multi-agency projects. COUNTDOWN CARD - Track What Matters Most Count down to deployments, contract deadlines, project milestones, certifications, vacations, school exams, Christmas, birthdays, and special events. Unlimited events with widget support. Great for professionals and kids counting down to Santa. TIME TRAVEL CARD - Navigate Any Date Jump to any date past or future. See what day/week it falls on. Essential for multi-year planning and historical reference. CALCULATOR CARD - Instant Date Intelligence Convert between dates and day numbers instantly. What date is Day 222? What day is November 15th? No more counting on calendars. WHO USES EPOCH X MILITARY & VETERANS - Deployment cycles, training schedules, fiscal years, operational timelines GOVERNMENT CONTRACTORS - Federal fiscal alignment, contract periods, multi-agency coordination BUSINESS LEADERS - Fiscal quarters, strategic initiatives, team deadline management PROJECT MANAGERS - Timeline visualization, milestone tracking, team synchronization STUDENTS & FAMILIES - School semesters, exam schedules, holiday countdowns, break planning DAILY READERS - 365-day reading programs without losing your place PRECISION SEEKERS - Anyone who thinks in day numbers, weeks, or quarters PRO FEATURES (7-Day Free Trial) Fiscal Quarter Tracking Unlimited Countdowns Time Travel & Calculator Cards Deadline Management & Sharing Team Collaboration Notes Custom Colors & Themes Advanced Widgets Calendar Integration Smart Notifications Siri Shortcuts FREE: Main Card tracking, basic quarters, year progress, notifications WHY EPOCH X ONE-TIME PURCHASE - $3.99 once. No subscriptions. Own it forever. PRIVACY FIRST - All data stays on your device. No cloud required. VETERAN OWNED & OPERATED - Built for precision, reliability, and mission success. WHAT MAKES IT UNIQUE No other app gives you this perspective—seeing your year as Day 1 to Day 365. This transforms how military personnel, business planners, students, and families track time. Download free. Try all Pro features for 7 days. Unlock lifetime access for $1.99.
Screenshots
Verdict
The clearest difference is price: Epoch X at Free against Gwaidigo2's $19.99. Gwaidigo2's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 17.0). On 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
Epoch X is free to download; Gwaidigo2 costs $19.99 up front. Epoch X sells 2 one-off in-app purchases. Gwaidigo2 asks for nothing beyond the download.
| Parameter | Gwaidigo2 | Epoch X |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | — | 3.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 斌 虞 | Kenneth W Anderson |
In-app purchases
Gwaidigo2
No in-app purchases
Epoch X
- Epoch X Pro Lifetime$1.99
- Epoch X Pro Lifetime$3.99









