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NumberGoUp
Get on Google Play
No login. No tracking. Bitcoin Tracker

Watch your Bitcoin stack,
without being watched.

NumberGoUp brings real-time Bitcoin valuation and live home screen widgets to Android. Monitor your confirmed on-chain wallet balance with zero tracking, zero accounts, and total peace of mind—your private keys never touch the internet.

Get it on Google Play
1×1 Mini Widget
BTC / USD ▲ +4.2%
$94,850
Spot Price
Tap to refresh ● Live
2×1 Compact Ledger
Wallet Valuation ▲ +4.2%
$142,275
1.50000000 BTC @ $94,850
Updated just now USD
2×2 Standard Ledger
Confirmed Balance ▲ +4.2%
$142,275.00
150,000,000 SATs
bc1q...x89f Coinbase Mempool
Engineered for Bitcoiners

Built for Privacy. Designed for Glanceability.

Everything you need to follow your Bitcoin valuation at a glance, without exposing your security.

🛡️

Pure Watch-Only

NumberGoUp never asks for, touches, or stores private keys or seed phrases. Provide any public Bitcoin address to view confirmed balances directly from public blockchain mempool nodes.

⚡

Native Home Screen Widgets

Four dedicated, native Android widgets (1×1 Mini, 2×1 Compact, 2×2 Standard, 4×2 Full Ledger). Tap anywhere on the widget to trigger an instant in-place price refresh.

💱

Multi-Currency Spot Pricing

Live spot rates and 24-hour price deltas via Coinbase public feeds. Track valuations in USD, GBP, EUR, AUD, CAD, CHF, or custom ISO fiat currencies.

Cold Storage Best Practices

Why Hardware Wallets Matter for Bitcoin Security

NumberGoUp is deliberately designed as a watch-only application. That means it only needs your public Bitcoin address to calculate your valuation. It never handles your private keys.

The foundational rule of Bitcoin sovereignty is simple: Not your keys, not your coins. Storing private keys or seed phrases on internet-connected devices (smartphones, browsers, or cloud notes) exposes you to remote exploits, clipboard hijacks, and malware.

  • Air-Gapped Isolation: Hardware wallets generate and store your 12 or 24-word recovery phrase completely offline inside a secure element chip.
  • Ideal Pair for NumberGoUp: Keep your Bitcoin locked securely in cold storage while using NumberGoUp on your phone for daily, glanceable portfolio tracking.
Recommended Cold Storage LEDGER

Protect Your Bitcoin with Ledger Hardware Wallets

Ledger provides industry-certified hardware security with an isolated Secure Element (CC EAL6+) designed to safeguard your Bitcoin from physical and digital threats.

  • Offline private key generation & signing
  • Certified Secure Element (CC EAL6+)
  • Seamless cold storage for watch-only tracking
Explore Ledger Devices
Affiliate Disclosure: NumberGoUp participates in the Ledger affiliate program. When you purchase through our link, we may earn an affiliate commission at no extra cost to you. We exclusively recommend cold storage hardware that upholds Bitcoin self-custody principles.
Transparency & Self-Custody Commitment NumberGoUp is an open-source, client-side utility that operates strictly in watch-only mode. We never request, access, or store your private keys or seed phrases. Any hardware wallet devices referenced are physical hardware products fulfilled and shipped by third-party manufacturers.