NFT Explorer vs MemKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NFT Explorer
Easily monitor NFT collections across multiple blockchain networks. View all transaction types for any wallet and save addresses for quick access. Supports light and dark modes with dynamic font sizing.
- Track multiple wallets
- Supports multiple blockchain networks
- View ERC-721 and ERC-1155 transactions
- Add wallets to saved lists
- iCloud synchronization
- Light and dark mode
- Dynamic font size support
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NFT Explorer is the easiest way to keep track of any wallet’s NFT collection on Binance Smart Chain, Ethereum, Fantom, Chronos, Avalanche, Arbitrum, Base, Gnosis and Polygon network (more coming soon). It allows you to see any ERC-721 and ERC-1155 transactions of any wallet easily (Transfer, Buy, Sell or Mint). It features: - Track as many wallets as you want; - We support Binance Smart Chain, Ethereum, Fantom, Chronos, Avalanche, Arbitrum and Polygon chain for now with more to come soon; - View transactions of any address without leaving the app and also add them to the saved account lists if you want; - Added wallet addresses are automatically synchronised via iCloud; - Light mode and Dark mode support; - Accessibility support. We have optimized the apps for Dynamic Font Size. If you do have questions or for feedback you can contact us at support@crapps.io anytime. Thanks for using our app!
MemKey
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MemKey is your secure and smart way to store, protect, and memorize your crypto wallet passkey - all in one place. Tired of forgetting your 12‑word recovery phrase or risking insecure backups? MemKey keeps your wallet passkey safely encrypted and optionally, saved on iCloud, accessible only to you through biometric authentication (Face ID or Touch ID). But MemKey goes beyond security. It helps you remember your passkey - just like you’d learn a new language. With repetition techniques, you’ll effortlessly memorize your recovery phrase without stress or notes lying around. Key Features: - Securely save your 12‑word wallet passkey on your phone or on iCloud with full encryption - Protect access using Face ID or Touch ID - Practice your passkey with memory exercises - Daily reminders for passkey memorization - Designed for privacy - only you can unlock and view your data MemKey combines advanced security with learning so you never lose access to your crypto again. Safe storage. Smarter memory.
Screenshots
Verdict
The clearest difference is update cadence: MemKey at every 2 days against NFT Explorer's every 2 months. MemKey also leads on iOS requirement (15.1 vs 18.0). 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. NFT Explorer sells 7 one-off in-app purchases and MemKey sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
NFT Explorer ships an update every 2 months, MemKey every 2 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | NFT Explorer | MemKey |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 34 MB | 33 MB |
| Age rating | 17+ | 4+ |
| Developer | Crapps Crypto Apps SRL | Iman IRAJ DOOST |
In-app purchases
NFT Explorer
- View NFT on Ethereum Chain$1.99
- View NFT on Polygon Chain$1.99
- View NFT on Binance Chain$1.99
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- View NFT on Arbitrum Chain$1.99
- View NFT on Avalanche Chain$1.99
- View NFT on Base Chain$1.99
- View NFT on All Chains$5.99
MemKey
- MemKey Premium$1.99









