Chainlock vs 21 Pulse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chainlock
This app enhances cryptocurrency security by guiding users through essential features of their chainlock card. It ensures private keys remain secure on the card, never requesting or transmitting them. Users can monitor cryptocurrency values for added cards without physical access.
- Cryptocurrency security guidance
- Private key protection
- Monitor crypto values
- Card management
- Hardware wallet integration
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The app guides you through the most important security features of your chainlock card for the highest security of your cryptocurrencies. The chainlock app never asks you to type in your private key at any time and doesn’t use, save or transmit your private key at any point. Your private key is only stored on the chainlock card itself and is never observable to any person – not even to our staff members during production! This way, we ensure a maximum of security for your personal private key. After successfully adding your new chainlock card to the app, you can check all added cards as well as the current value of the cryptocurrencies for every card without removing your physical chainlock card out of its safe storage place.
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: Chainlock at 5.0 against 21 Pulse's 4.0. Chainlock also leads on iOS requirement (12.0 vs 26.0). On price, review sentiment, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Chainlock holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Chainlock ships an update every 3 weeks, 21 Pulse every 2 weeks. The most recent releases landed on October 3, 2026 and September 17, 2026 respectively.
| Parameter | Chainlock | 21 Pulse |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 34 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | youniqx Identity AG | Heiko Mattern |
Customer experience
Chainlock
21 Pulse
In-app purchases
Chainlock
No in-app purchases
21 Pulse
No in-app purchases
