TIMECHAIN CALENDAR vs 21 Pulse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TIMECHAIN CALENDAR
Visualize the Bitcoin network with this protocol explorer and live data dashboard. Search past blocks, estimate future ones, and enhance your experience with subscriber-only mobile tools like a special moment camera and customizable alerts.
- Bitcoin protocol visualization
- Timechain block search
- Future block estimation
- Block and price data camera overlays
- Customizable alerts
- Home and lock screen widgets
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TIMECHAIN CALENDAR is a Bitcoin protocol visualizer, timechain explorer, and live data dashboard. This compact interface provides a comprehensive view at-a-glance of the Bitcoin network's most important features. Search and explore the entire chain to find past blocks or estimate future blocks by height or date. Stay informed and connected! Subscribers unlock native mobile tools to enhance the experience. Block-stamp and price-stamp your special moments with the Timechain Calendar camera. Stay notified with a suite of alerts about the info that matters to you most. Install widgets that surface the latest data into your view without needing to open the app. Features: - Block production monitoring - Complete timechain block search - Future block estimation by height or date - Camera with live block and price data overlays - Customizable price, block, mining pool and calendar alerts - Beautiful home screen & lock screen widgets
21 Pulse
This Bitcoin-focused app provides real-time price tracking, market sentiment indicators, and a map of merchants accepting Bitcoin. It also offers educational resources, a portfolio tracker, and various tools for enthusiasts and merchants.
- Real-time Bitcoin price and charts
- Fear & Greed Index and on-chain stats
- Bitcoin merchant locator (Lightning SatMap)
- Educational resources on Bitcoin
- Portfolio tracker with DCA plans
- Home screen widget for live price
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21 Pulse – The rhythm of Bitcoin. Your Bitcoin-only companion for enthusiasts and everyday users. No altcoins, no noise – just everything you need around Bitcoin. FEATURES: • Real-time Bitcoin price (USD & EUR) with interactive charts (1H to All-Time) • Fear & Greed Index & Bitcoin on-chain stats • Lightning SatMap: Find merchants that accept Bitcoin & Lightning near you – with 60+ category icons • Lightning wallets guide & POS solutions for merchants • Bitcoin news in English, German & Spanish • Bitcoin events calendar & conference tracker • Learn Bitcoin: 6 chapters, 24 FAQs, curated videos & books • Portfolio tracker with DCA plans & performance analysis • Tools: Block & Halving, Converter, DCA Calculator, Mining ROI • Home Screen Widget: Live price & 24h change • Beginner & Advanced mode – for every Bitcoiner • Clean design with customizable accent color (light/dark/system) 21 Pulse is built for people who value sovereignty, simplicity and focus. No account required. No tracking. Your data stays on your device. Bitcoin only. Always.
Screenshots
Verdict
The clearest difference is rating: TIMECHAIN CALENDAR at 5.0 against 21 Pulse's 3.3. TIMECHAIN CALENDAR also leads on update cadence (weekly vs every 2 weeks) and ratings volume (16 vs 3). 21 Pulse's advantage is in-app purchases (none vs 2). On price, review sentiment, 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
Both are free to download. TIMECHAIN CALENDAR sells 2 in-app purchases, starting at $2.99 per month. 21 Pulse asks for nothing beyond the download.
TIMECHAIN CALENDAR holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: TIMECHAIN CALENDAR has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
TIMECHAIN CALENDAR ships an update weekly, 21 Pulse every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | TIMECHAIN CALENDAR | 21 Pulse |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (16 ratings) — better | 3.3 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 16 — better | 3 |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 34 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | Timechain Calendar LLC | Heiko Mattern |
Customer experience
TIMECHAIN CALENDAR
21 Pulse
In-app purchases
TIMECHAIN CALENDAR
- Monthly Subscription$2.991 Month
- Yearly Subscription$29.991 Year
21 Pulse
No in-app purchases
