X Progress vs B³ Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
X Progress
Visualize time's passage with customizable countdowns and count-ups. Track events, periods, and repeating moments with beautiful themes and live updates. Share progress with others and organize events with tags and secure hidden tabs.
- Count down to events or count up from memories
- Track daily, weekly, monthly, yearly, and custom repeating events
- Visualize progress with percentage, days passed, or days left
- Customize events with themes, photos, and motion
- Live Activities for Lock Screen and Dynamic Island
- Widgets for Home Screen and Lock Screen
- Share events and collaborate with others
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Time passes quietly. X Progress makes it visible. Count down to a trip. Count up from a memory. Watch a semester, a project, a year, or any chapter of life fill in. X Progress turns the moments that matter into beautiful, living progress you can understand at a glance. SEE TIME YOUR WAY • Track one-day moments, longer periods, repeating events, and the built-in progress of the year, month, week, and day. • Repeat events daily, weekly, monthly, or yearly, or set custom rules like every other week or the last day of the month. • Show days passed, days left, or a percentage. Count up, count down, or let Auto change direction as time moves. • Add all-day or timed dates, alerts, notes, and photos. • Organize with tags, search, pinned events, Archive, and a Hidden tab protected by Face ID, Touch ID, or your passcode. MAKE EVERY EVENT YOURS • Choose from 50+ designer themes, from quiet gradients and pixel art to cozy animal crowds and animated worlds. • Use Photo Theme Studio to turn a photo or Live Photo into your own theme. • Customize backgrounds, subject cutouts, colors, gradients, fonts, text layouts, and motion. ALWAYS IN VIEW • Follow a countdown live on the Lock Screen and in the Dynamic Island with Live Activities, drawn in your event's own theme. • Keep important events on your Home Screen and Lock Screen with widgets, or on your wrist with Apple Watch complications. JUST ASK SIRI • Tell Siri about an event in your own words, and it's created for you. • Ask Siri how far along an event is, or start a Live Activity without opening the app. • Find your events in Spotlight, each shown with its own theme. COUNT DOWN TOGETHER • Invite friends and family to view or edit an event. Changes stay synchronized through iCloud, with shared activity collected in one place. • Share any event as a photo, Live Photo, video, Instagram Story, or sticker. • Use ZEN with SharePlay to focus on a moment together over FaceTime. CREATE IN LESS TIME • Start from Ready to Go templates for working hours, paydays, trips, birthdays, and more. • With Smart Create, describe an event in a sentence, or share a photo to X Progress, and review the completed event before saving. ON EVERY SCREEN X Progress works on iPhone, iPad, Mac, and Apple Watch, and it's ready for iPhone Duo: unfolded, folded, or half open, the layout adjusts automatically to fit the way you're using it. iCloud keeps your events, photo themes, and notes in sync across devices. You'll also find Date Gap for measuring the exact time between two dates, a calendar, public holiday events, reminders, search, and accessibility support for VoiceOver. Start free. X Progress Unlimited unlocks the complete designer theme gallery, Live Activities, and more. Smart Create, including creating events with Siri in your own words, requires a compatible device with Apple Intelligence. Availability may vary by language and region. Terms of Use: https://www.roczhang.com/x-progress/terms_and_conditions.html Privacy Policy: https://www.roczhang.com/x-progress/privacy_policy.html
B³ Calculator
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We are introducing an upgraded version of the BMI Calculator that not only provides BMI (Body Mass Index) calculation but also includes BMR (Basal Metabolic Rate) and BFP (Body Fat Percentage) functions. It supports local data storage and tracking, ensuring the security of your information while making health management easier and more effective. Whether you want to control weight, improve health conditions, or pursue an ideal body composition, our B³ Calculator provides comprehensive support. With a simple and intuitive interface, you can effortlessly and accurately calculate your BMI (Body Mass Index) and understand your weight status. At the same time, we also offer the BMR (Basal Metabolic Rate) feature, which calculates your basal metabolic rate based on factors such as height, weight, age, and gender. Understanding your BMR can help you better determine your daily calorie intake and plan your diet more effectively. Another important indicator, BFP (Body Fat Percentage), is also included in our B³ Calculator. You can calculate your body fat percentage and understand your body fat level, providing guidance for achieving your desired body composition. Whether you are a fitness enthusiast, someone looking to lose weight, or simply seeking better health management, our B³ Calculator will become your essential health assistant. Take control of your BMI, BMR, and BFP and embark on a new journey towards a healthy life! Disclaimer: The data and indicators provided by the B³ Calculator are for reference only and do not constitute medical advice. Before making any health decisions, please consult professional medical institutions or doctors for advice.
Screenshots
Verdict
The clearest difference is price: X Progress at Free against B³ Calculator's $0.99. X Progress also leads on update cadence (every 2 months vs every 40 months) and device support (4 vs 2). B³ Calculator's advantage is in-app purchases (none vs 10). On ads and iOS requirement 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
X Progress is free to download; B³ Calculator costs $0.99 up front. X Progress sells 10 in-app purchases, starting at $0.49 per month. B³ Calculator asks for nothing beyond the download.
X Progress ships an update every 2 months, B³ Calculator every 40 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | X Progress | B³ Calculator |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (87 ratings) — better | — |
| Positive reviews | 57.5% of reviews | — |
| Number of ratings | 87 — better | — |
| Update frequency | Every 2 months — better | Every 40 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 175 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | 鹏 张 | 玉美 张 |
In-app purchases
X Progress
- X Progress Unlimited Monthly3 Days trial$0.491 Month
- Turtle Theme$0.99
- WuFan Theme$0.99
- Snail Theme$0.99
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- The Color of Time Theme$0.99
- NUONUO Theme$0.99
- Full Moon Theme$0.99
- Expedition Theme$0.99
- Toby Likes Bone Theme$0.99
- X Progress Unlimited Lifetime$19.99
B³ Calculator
No in-app purchases
Questions
Is X Progress free?
Is B³ Calculator free?
Do X Progress or B³ Calculator have ads?
Which is updated more often, X Progress or B³ Calculator?
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