AI Usage vs Q
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AI Usage
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Track your AI service usage and stay within your limits. THE PROBLEM AI services have usage quotas. You lose track. Limits hit at the worst time. WHY CHECKING MANUALLY ISN'T ENOUGH Each service has its own settings page β but nobody opens five different apps to check usage one by one until it's too late. THE SOLUTION AIUsage tracks your AI service quotas β Claude, Cursor, Antigravity, and more. See exactly how much you've used, how much is left, and when it resets. Simple. Visual. No more surprise limits. Support: steve_ham@icloud.com
Q
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Never lose your crypto again. 20% of all Bitcoinβ$250 billionβis permanently lost due to failed backups. Hardware wallet are complex only move your from digital vulnerability to physical vulnerability. Subscriptions may cost thousands over time. Social recovery depends on others. Q-Ledger offers quantum-safe backup that lasts forever, for a one-time fee. --- HOW IT WORKS 1. Import Your Private Keys - MetaMask, Trust Wallet, Coinbase Wallet - Type in your (hardware wallet( seed phrases - Auto-detects any format 2. Quantum-Safe Encryption - X-Wing / ML-KEM-768 (same as iOS 26 uses) - Encrypted on your device - Q-Ledger never sees your keys 3. Store Forever on Arweave - One-time payment, permanent storage - Thousands of independent global nodes - Survives even if Q-Ledger shuts down 4. Recover Anytime - Decrypt on iOS with Face ID - Pro: Platform-independent recovery --- WHY Q-LEDGER * One-time fee vs. perpetual subscriptions * Only quantum-safe crypto backup solution * Disaster-proof: no physical backup to lose * Zero custodians: verifiable security * Platform independence (Pro version) * Open encryption format * Inheritance ready * No account required --- PLANS Free version includes 1 wallet backup with quantum-safe encryption and permanent storage. Wallet bundles available for backing up multiple keys. Pro upgrade unlocks platform-independent recovery, multi-device iOS access, and GitHub recovery scripts for any platform. --- SUPPORTED FORMATS BIP39 seed phrases (12-24 words), raw hex, WIF, extended keys (BIP32/BIP44), JSON keystores (MetaMask), JWK (Arweave), QR codes, documents up to 8KB. Auto-detect handles any format. --- SECURITY Your encrypted backup is publicly visible on Arweave but unreadable without your keys. This eliminates private channels where data could be intercepted. Q-Ledger never receives your encryption keysβthey're stored only in iOS Keychain. Traditional encryption (AES, RSA) will be broken by quantum computers. Q-Ledger uses X-Wing ML-KEM-768βthe same post-quantum algorithm in iOS 26βprotecting against future threats. If quantum computers break Q-Ledger's encryption, they've already broken blockchain signatures. Your backup is no more vulnerable than the blockchain itself. --- WHAT IF Q-LEDGER SHUTS DOWN? Your wallets remain accessible. All data is on Arweave's decentralized network, not Q-Ledger servers. Standard users keep using the app. Pro users can decrypt on any platform using public GitHub recovery scripts. --- MULTI-DEVICE ACCESS Encryption keys sync automatically via iCloud Keychain. Sign in to a new iPhone with the same Apple IDβall wallets become accessible immediately. Pro users can also manually export for non-Apple devices. --- Your keys, your crypto, your backup. Forever. Download free. Back up your first wallet in 30 seconds. License: https://www.q-ledger.app/terms-and-conditions
Screenshots
Verdict
The clearest difference is in-app purchases: AI Usage at none against Q's 3. AI Usage also leads on update cadence (every 11 days vs monthly) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Q sells 3 one-off in-app purchases. AI Usage asks for nothing beyond the download.
AI Usage ships an update every 11 days, Q monthly. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.
| Parameter | AI Usage | Q |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days β better | Monthly |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 18.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 17 MB | 37 MB |
| Age rating | 4+ | 17+ |
| Developer | Seung-Un Ham | Aernoud Dekker |
In-app purchases
AI Usage
No in-app purchases
Q
- 5 Wallet Bundle (Pro Discount)$2.99
- 5 Wallet Bundle$3.99
- Q-Ledger Pro$7.99









