Bitkru vs Grimm App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bitkru
Manage your Bitcoin securely with a self-custody wallet. Send and receive BTC on both the native SegWit and Lightning networks, track transactions, and view balances in multiple currencies. Enjoy a user-friendly interface with light and dark modes.
- Complete self-custody security
- Dual network support (SegWit & Lightning)
- Transaction overview and monitoring
- Global features (multi-currency, real-time prices)
- Modern and user-friendly interface
- Bitcoin-only focus
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A Bitcoin wallet that allows you to store, send Bitcoin, receive Bitcoin and secure Bitcoin with focus on self-custody and simplicity. On Bitkru, a Bitcoin wallet you own, you hold your private keys. A Bitcoin wallet made for Bitcoin users who want real control of their coins. You can instantly transact with anyone in the world, straight from your pocket — no account, no email, no middleman. Create for free an unlimited number of Bitcoin wallets, import any wallet you already have, or build a multisig vault. It's simple and fast. Here's what you get: 1 - Security by design Open Source MIT licensed, you can build it and run it on your own! Made with React Native. You hold the keys Private keys never leave your device. We never see your seed, your keys, or your balance. Biometric app lock Face ID or Touch ID seals the app until you authenticate. Off by default, on with one tap. Screen capture protection Screenshots and screen recording are blocked on every screen that surfaces a recovery phrase, private key, or xpub. Custom Electrum server Connect the wallet to your own Electrum node for full sovereignty over how it learns about the chain. 2 - Focused on your experience Multisig vaults Build M-of-N Bitcoin vaults — 2-of-3, 3-of-5, anything — with BIP48 P2WSH cosigners you create or import. Full HD support Legacy (BIP44), Wrapped SegWit (BIP49), and Native SegWit (BIP84) addresses derived from a single seed and rolled into one balance. Coin Control Pick the exact UTXOs you spend, freeze the ones you don't, and label them. The wallet honors your selection every time. Replace-By-Fee (RBF) Speed-up your transactions by increasing the fee (BIP125). Every send is RBF-enabled by default. Sign & Verify messages Sign Bitcoin messages with any wallet address and verify signatures from others — Electrum and Bitcoin Core compatible.
Grimm App
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Grimm App is a secure and modern Bitcoin wallet. Whether you’re sending money to a loved one, paying for services, or receiving funds from anywhere in the world, Grimm makes Bitcoin fast, simple, and accessible through the power of the Lightning Network and Onchain. What You Can Do with Grimm: Send & receive Bitcoin instantly via the Lightning Network (low fees, no delays) Scan QR codes to pay or generate a payment request Check your balance and transaction history anytime, anywhere Sync your wallet easily using your seed phrase Get notified about new payments, activity, and wallet updates Dark mode for comfort and battery savings Why Grimm App? Grimm App is designed for the realities of people around the world, where access to stable financial infrastructure is limited and remittance fees are high. We believe in a decentralized, open financial system powered by Bitcoin. With Grimm App, you’re not just using money, you’re owning it. Security First Grimm App is non-custodial you’re in full control of your funds. Your Bitcoin private keys are stored only on your device, encrypted and recoverable through a 12 or 24-word seed phrase. No one can access your money but you.
Screenshots
Verdict
The clearest difference is update cadence: Bitkru at every 3 days against Grimm App's every 2 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Bitkru ships an update every 3 days, Grimm App every 2 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | Bitkru | Grimm App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (84 ratings) — better | — |
| Positive reviews | 91.9% of reviews | — |
| Number of ratings | 84 — better | — |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 29 MB | 56 MB |
| Age rating | 9+ | 4+ |
| Developer | NWAY OO WATHAN TRADING COMPANY LIMITED | Grimm Technologies SARL |
Bugs and requests
Bitkru
Reported bugs
1 issue- None reported
Requested features
2 requests- Dark mode option
- Automatic system-wide dark mode setting
Grimm App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bitkru
No in-app purchases
Grimm App
No in-app purchases









