nGeneCrypto vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
nGeneCrypto
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nGeneCrypto is a native iPhone and Apple Watch workspace for crypto market research, education, and software exploration. Monitor digital assets alongside macro, liquidity, rates, foreign-exchange, metals, and equity indicators. Organize custom groups, star Favorites, inspect historical charts, and follow selected items through iPhone widgets and Apple Watch complications. MARKETS AND DASHBOARDS ⢠Market board for Bitcoin, Ethereum, Solana, XRP, and user-added assets ⢠Focused dashboards for Bitcoin, Ethereum, Solana, XRP, and liquidity conditions ⢠Inline charts with 24H, 1W, 1M, 3M, 6M, 1Y, and All ranges ⢠Interactive dashboard price and ratio charts: tap a point or touch, hold, and drag to inspect values and timestamps ⢠Adaptive chart scales, clearer value labels, and loading indicators ⢠Crypto ratios and relative-performance comparisons, with matching timestamps used for ETH, SOL, and XRP ratio calculations ⢠Macro context including DXY, VIX, repo rates, U.S. Treasury yields and spreads, FX, metals, and equities ⢠Custom groups with reordering, hiding, reset, search, Favorites, and swipe-to-remove controls ⢠Manual refresh and configurable chart-loading behavior IPHONE FAVORITE WIDGETS ⢠Medium and large Home Screen widgets ⢠Inline, circular, and rectangular Lock Screen widgets ⢠Compact layouts with automatic rotation when Favorites exceed widget capacity ⢠Configurable 5, 10, 15, 30, or 60-minute rotation intervals ⢠Configurable Background Price Refresh with 15, 30, or 60-minute earliest-request settings ⢠Favorite price refresh on app launch and return to the foreground, followed by widget and Apple Watch synchronization ⢠Last-known-good values retained when fresh data is unavailable ⢠Rotation displays cached Favorites; it does not itself fetch new prices APPLE WATCH ⢠Companion app for viewing and selecting iPhone Favorites ⢠Rotating Favorites complication displaying up to three items ⢠Fixed Favorites (No Rotation) complication with left, middle, and right positions ⢠Extended cached rotation timelines and improved background synchronization ⢠Threshold alarms with haptic patterns, optional notifications, custom thresholds, and intervals iOS, watchOS, and WidgetKit control actual background refresh, widget, and complication update timing. Selected intervals are requests, not guarantees. BTC KEYS ⢠Local BIP39 mnemonic generation ⢠Bitcoin key derivation and address verification ⢠Personal-custody education ⢠Generated secrets are not transmitted ⢠Not a wallet and not intended for real-fund use OPTIONAL ETHEREUM LABS Enable individual add-ons in Settings > Ethereum Labs: ⢠ETH ERP ā Ethereum standards and deterministic workflow simulations ⢠Sepolia ā testnet onboarding, public-state reads, and Native ETH or ERC-20 dry runs ⢠Mainnet Lab ā read-only Ethereum Mainnet ERC-20 state inspection and EVM dry runs Ethereum Labs use public addresses and RPC endpoints only. They do not request private keys or seed phrases, connect to a wallet, sign or broadcast transactions, move ETH or tokens, pay gas, create transaction hashes, or change blockchain state. nGeneCrypto is designed for research, education, software exploration, and market context. It does not provide financial, investment, tax, legal, brokerage, exchange, trading, custody, or money-transmission services. Market, dealer, widget, and public-chain data may be delayed, unavailable, inconsistent, cached, or provider-dependent. Dealer pages may require manual browser verification. Important information should be independently verified.
Ring Sizer
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Find your ring size in seconds ā at home, with the iPhone already in your hand. Measure an existing ring, size your finger, or use a printable strip. Ring Sizer instantly compares your result across US, UK, European, Japanese, and Chinese standards so you can shop online with more confidence. MEASURE THREE WAYS ⢠Place a ring on screen and match its inner edge ⢠Measure your finger with the guided ruler ⢠Print a calibrated sizing strip (Pro) and enter the mm reading INTERNATIONAL SIZE CHART See US, UK, European, Japanese, and Chinese sizes at once ā with diameter and circumference in millimeters. SHOP WITH MORE CONFIDENCE ⢠Calibrate the screen for more reliable measurements ⢠Get guidance when your result falls between sizes ⢠Use discreet mode when planning a surprise gift ⢠Share a clear size result with someone else RING SIZER PRO ⢠Printable calibrated sizing strip ⢠Save unlimited ring sizes ⢠Jeweler-ready PDF export Results are estimates ā confirm with a jeweler or ring mandrel before ordering. Core ring sizing is free. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: nGeneCrypto at none against Ring Sizer's 2. nGeneCrypto also leads on update cadence (every 3 weeks vs every 2 months). Ring Sizer's advantage is iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $2.99 per 7 days. nGeneCrypto asks for nothing beyond the download.
nGeneCrypto ships an update every 3 weeks, Ring Sizer every 2 months. Both last shipped on October 24, 2026.
| Parameter | nGeneCrypto | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks ā better | Every 2 months |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 ā better |
| Further details ā not scored | ||
| Size | 12 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyunsuk Roh | RUEBEN ANSOLIWEN AKANKOBATENG |
In-app purchases
nGeneCrypto
No in-app purchases
Ring Sizer
- All access weekly$2.997 Days
- All access Lifetime$19.99









