Calvim vs Defyx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calvim
This app offers a fast, lightweight, and beautifully designed Shamsi calendar with full Persian and Gregorian date support. It features customizable event selection, comprehensive event management, and modern, user-friendly widgets. Stay organized with its intuitive interface and updated holiday display.
- Lightweight and fast performance
- Beautifully designed widgets
- Modern and user-friendly interface
- Full Persian and Gregorian date support
- Customizable event selection
- Comprehensive event management
- Light and dark mode support
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Calvim (formerly ShamsiPlus) is a free Persian calendar for iPhone, iPad and Apple Watch: Shamsi (Jalali) dates, Iranian holidays, tasks, notes, work shifts and widgets. No ads, no account, works offline. کالویم (شمسی پلاس سابق): تقویم شمسی ۱۴۰۵ با تعطیلات رسمی، کارها، یادداشتها، شیفت کاری و ویجت. رایگان و بدون تبلیغات. IRANIAN CALENDAR & HOLIDAYS • Official Iranian holidays, including the 1406 holidays. • 1,000+ occasions: national and religious days, Hijri (lunar) dates, world days and Persian celebrations like Nowruz, Mehregan and Yalda. Turn any category on or off. • Nowruz countdown with reminders. • Choose your first day of the week and your weekend days. TODAY ON ONE SCREEN • Home shows today's occasions, tasks and notes, your week and the year's progress. Move overdue tasks to today in one tap. TASKS, NOTES & REMINDERS • Tasks with dates, times and reminders, grouped into Overdue, Today and Upcoming. Pin important notes. • Personal events on Shamsi or Gregorian dates: all-day or timed, colors, repeats, multiple reminders and custom holidays. • One search for events, tasks and notes. WORK SHIFT CALENDAR • For nurses, doctors and anyone on shifts: set shift types and a repeating rotation, paint days on the month, see a monthly summary and get reminders for each shift. DATE CONVERTER • Shamsi to Gregorian and back, with the exact number of days from today. WIDGETS & APPLE WATCH • 7 Home Screen widgets, including Month and Week. Tick off tasks right from the widget. • 8 Lock Screen widgets in Persian or English: date, next holiday countdown, tasks left, next task and more. • Apple Watch app with complications and a Smart Stack widget. Events and shifts sync from iPhone. WORKS WITH YOUR APPS • Import .ics files from Google Calendar, Outlook and others, and review before saving. • Siri and Shortcuts: open a date or add an event, task or note. • Share any day with its holidays and events. DESIGN & PRIVACY • 10 accent colors, Light and Dark mode, iPhone and iPad layouts, VoiceOver and large text support. • Your events, tasks and notes stay on your device. Usage stats only if you opt in. Download Calvim free, the Persian calendar for your whole year. تقویم فارسی کالویم تقویم شمسی (جلالی) برای آیفون، آیپد و اپل واچ. رایگان، بدون تبلیغات، بدون حساب کاربری و بدون نیاز به اینترنت. تقویم و تعطیلات • تعطیلات رسمی ایران، همراه با تعطیلات ۱۴۰۶. • بیش از ۱۰۰۰ مناسبت: ملی و مذهبی، تاریخ قمری، روزهای جهانی و جشنهایی مثل نوروز، مهرگان و یلدا. هر دسته را روشن یا خاموش کنید. • شمارش معکوس نوروز با یادآور. • شروع هفته و روزهای تعطیل به انتخاب شما. امروز در یک نگاه • صفحه خانه: مناسبتها، کارها و یادداشتهای امروز، هفته شما و پیشرفت سال. کارهای عقبافتاده را با یک لمس به امروز بیاورید. کارها، یادداشتها و یادآور • کار با تاریخ، ساعت و یادآور؛ دستهبندی عقبافتاده، امروز و پیشرو. یادداشتهای مهم را سنجاق کنید. • رویداد شخصی شمسی یا میلادی: تمامروز یا ساعتدار، رنگ، تکرار، چند یادآور و تعطیلات شخصی. • جستجو در رویدادها، کارها و یادداشتها. تقویم شیفت کاری • برای پرستاران، پزشکان و همه شیفتکارها: نوع شیفت، چرخه کاری، رنگ کردن روزها، خلاصه ماهانه و یادآور هر شیفت. تبدیل تاریخ • شمسی به میلادی و برعکس، با فاصله دقیق تا امروز. ویجت و اپل واچ • ۷ ویجت صفحه اصلی، از جمله ماه و هفته، با تیک زدن کارها از روی ویجت. • ۸ ویجت صفحه قفل به فارسی یا انگلیسی: تاریخ امروز، روزهای مانده تا تعطیلی بعدی، کارهای باقیمانده و کار بعدی. • اپل واچ با کامپلیکیشن و ویجت Smart Stack؛ رویدادها و شیفتها از آیفون همگام میشوند. کنار بقیه برنامهها • وارد کردن فایل .ics از گوگل کلندر، اوتلوک و بقیه، با بررسی قبل از ذخیره. • Siri و Shortcuts و اشتراکگذاری هر روز. طراحی و حریم خصوصی • ۱۰ رنگ، حالت روشن و تیره، چیدمان آیپد و پشتیبانی از VoiceOver. • اطلاعات شما روی دستگاه خودتان میماند؛ آمار استفاده فقط با اجازه شما. کالویم را رایگان نصب کنید؛ تقویم فارسی شما برای ۱۴۰۵ و ۱۴۰۶.
Defyx
This app provides secure and fast internet access with a focus on user privacy. It offers automatic setup, unlimited bandwidth, and end-to-end encryption to protect your data. The interface is clean and designed for ease of use, with features like Cloudflare DNS filtering for enhanced security.
- Secure, high-speed connections
- Automatic smart onboarding
- Unlimited bandwidth, no throttling
- Automatic best server selection
- End-to-end data encryption
- Strict no-logs policy
- Cloudflare DNS filtering
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Crafted for secure internet access, designed for everyone, everywhere Defyx is a privacy-first VPN app with user-friendly interaction, unique visual feedback, and upcoming AI-based security insights. Browse safely and protect your personal data with Defyx — a fast, modern, and easy-to-use VPN that puts your privacy first. Whether you're on public Wi-Fi or want extra peace of mind online, Defyx keeps your connection encrypted and private. Key Features: - Secure, high-speed connections - No setup needed — everything works automatically via smart onboarding - Unlimited bandwidth with no throttling or hidden limits - Automatically selects the best server for your location - End-to-end encryption for your data, wherever you go - Strict no-logs policy — we never track or store your activity - Lightweight, ad-supported experience to keep it free and sustainable - Clean, minimal interface designed for everyone — from first-time users to privacy experts - Cloudflare DNS filtering to block malicious content - Optimized for iPhone (iPad and Mac support coming soon) - Open-source commitment — we’ll publish our source code to promote transparency Focused on Privacy and Simplicity Defyx is built to help users stay secure on untrusted or public networks. Whether you're working remotely, traveling, or simply browsing privately, Defyx makes online protection easy and accessible. Coming Soon: More connection options and VPN protocols for increased reliability on complex networks. Take control of your privacy — with one tap.
Screenshots
Verdict
The clearest difference is in-app purchases: Calvim at none against Defyx's 5. Calvim also leads on ads (none vs shown) and rating (4.8 vs 4.4). Defyx's advantage is update cadence (every 10 days vs every 5 weeks). On price 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. Defyx sells 5 one-off in-app purchases. Calvim asks for nothing beyond the download.
Calvim holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Calvim has 491 ratings behind it against 55, so its average is the more settled of the two. Written reviews point the same way: 96% of Calvim's written reviews are positive against 81% of Defyx's.
Calvim ships an update every 5 weeks, Defyx every 10 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | Calvim | Defyx |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (491 ratings) — better | 4.4 (55 ratings) |
| Positive reviews | 96.1% of reviews — better | 81.3% of reviews |
| Number of ratings | 491 — better | 55 |
| Update frequency | Every 5 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 84 MB | 172 MB |
| Age rating | 4+ | 12+ |
| Developer | Pouya Ahmad Heydari | UnboundTech UG (haftungsbeschraenkt) |
Customer experience
Calvim
Defyx
Bugs and requests
Calvim
Reported bugs
1 issue- Dark mode icon removed
Requested features
4 requests- Lunar calendar support
- Widget support
- Date display on app icon
- More features
Defyx
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calvim
No in-app purchases
Defyx
- Defyx Balance – 1 Credit$0.99
- Defyx Balance – 2 Credits$1.99
- Defyx Balance – 3 Credits$2.99
Show 2 moreShow fewer
- Defyx Balance – 5 Credits$3.99
- Defyx Balance – 10 Credits$8.99









