Clack vs Nerve
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clack
Communicate privately with your AI agent through text and voice calls, all stored on your own server. Choose from various voice providers and manage multiple conversations with full history.
- Real-time voice and text chat
- Self-hosted data storage
- Multiple private conversations
- Choice of voice providers
- End-to-end encryption
- No account required
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Clack is a Voice Messenger made for Claude Code. Connect and control your sessions on Mac, from your iPhone — with the screen off, just by talking. You already have Claude Code sessions running on your Mac. Clack lets you listen in on them from anywhere else, and drive them forward by talking. Not a chatbot, and not a second Claude. The same sessions you left open, in your pocket — you hear what they're doing and you answer, and the work carries on where it was. HOW IT FEELS Put your AirPods in and leave the house. Clack reads out what your session is doing, in the words it would have written on screen. You say what you want next. It goes and does it, and tells you how it went. • Hear the reasoning as it happens — not a log of every step • Say something the moment you want to change direction • Screen off, phone in your pocket, hands doing something else • Every session on your computer, switched between by voice YOUR COMPUTER, YOUR SESSIONS Clack talks to a small relay you install on your own machine, alongside Claude Code. There is no server of ours in between holding your work. • The relay runs on your computer — you install it, you control it • Your phone and computer meet over your own Tailscale network • Messages are end-to-end encrypted, with a key only your two devices have • No account, no sign-up, no inbox of your conversations anywhere We can't read your sessions, because they never reach us. Speech is the one exception and it is explained plainly in the app before you agree to anything: what you say is transcribed, and replies are voiced, by a speech service — the audio, and nothing else. WHAT YOU NEED • A computer running Claude Code, with the free Clack Relay app on it • Tailscale on both devices — free for personal use • About five minutes to pair them, once REQUIRES A SUBSCRIPTION Clack is €4.99 a month with a one-week free trial. The subscription covers the speech that makes it hands-free. Cancel any time in Settings. Terms of Use (EULA): https://www.clack-app.com/terms.html Privacy Policy: https://www.clack-app.com/privacy.html
Nerve
Transform unproductive app usage into a brain-training challenge. Answer logic puzzles and brainteasers to earn back access to blocked apps, with higher difficulty offering greater rewards and risk.
- App blocking via Apple Screen Time
- 6 difficulty tiers with escalating rewards
- Pick Your Risk and Gauntlet modes
- Double-or-Nothing gambling mechanic
- 1000 handcrafted brainteaser questions
- ELO-inspired Brain Score tracking
- Daily quests and achievements
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Nerve turns screen time into a game of brains and risk. Block the apps you waste time on, then answer brainteaser questions to earn your screen time back. Harder questions unlock more time — if you have the nerve to try them. HOW IT WORKS Pick the apps you want to block. When you try to open one, Nerve challenges you with a brainteaser. Answer correctly and the app unlocks. Answer wrong and you're locked out on a cooldown. It's that simple. PICK YOUR RISK Choose from 6 difficulty tiers — Gimme, Easy, Medium, Hard, Expert, and Genius. Gimme questions earn you a few minutes. Genius questions earn you hours. But if you get it wrong, harder questions have shorter cooldowns while easier ones make you wait longer. Risk and reward, every time. DOUBLE OR NOTHING Got it right? Gamble your winnings on a harder question for double the screen time. Keep going until you cash out or lose it all. THE GAUNTLET Think you can go all the way? Start at Gimme and climb through all 6 tiers. Every correct answer adds time. One wrong answer and you stop — but you keep what you've earned. Complete all 6 for the ultimate payout. 1000 BRAINTEASER QUESTIONS Logic puzzles, lateral thinking, pattern recognition, wordplay, math tricks, spatial reasoning, number sense, sequencing, deduction, and visual puzzles. These aren't trivia — they're brainteasers designed to make you think. BRAIN SCORE Track your intellectual growth with an ELO-inspired rating system. Start at 1000 and climb through 7 ranks: Novice, Student, Scholar, Expert, Master, Grandmaster, and Genius. See your strengths and weaknesses across 10 question categories. DAILY QUESTS & ACHIEVEMENTS Three new quests every day to keep you on track. Earn streak multipliers for consecutive days. Unlock 20+ achievements as you progress. The more you play, the more screen time you earn per question. FEATURES - Block any app using Apple Screen Time - 6 difficulty tiers with escalating rewards - Pick Your Risk and Gauntlet challenge modes - Double-or-Nothing gambling mechanic - 1000 handcrafted brainteaser questions - 10 question categories - ELO-inspired Brain Score tracking - Daily quests with bonus rewards - 20+ unlockable achievements - Streak tracking with time multipliers - Per-category performance analytics - Weekly progress reports - Cooldown skip packs - Works entirely on-device — no account required SUBSCRIPTION Nerve requires a subscription. Plans: - Monthly: $7.99/month - Yearly: $34.99/year (save 63%, includes 3-day free trial) Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store account settings. Privacy Policy: https://www.bestdaylabs.com/nerve/privacy.html Terms of Service: https://www.bestdaylabs.com/nerve/terms.html Support: https://www.bestdaylabs.com/nerve/support.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Nerve at 4.9 against Clack's 4.0. Nerve also leads on ratings volume (15 vs 1). Clack's advantage is monetization model (paid vs subscription). On price, review sentiment, update cadence and ads 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. Clack sells 2 in-app purchases, starting at $4.99 per month and Nerve sells 5 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Nerve holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Nerve has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Clack ships an update every 2 days, Nerve every 4 days. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | Clack | Nerve |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.9 (15 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 15 — better |
| Update frequency | Every 2 days — better | Every 4 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 18 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Fabian Schneider | Best Day Labs, LLC |
Customer experience
Clack
Nerve
In-app purchases
Clack
- Monthly7 Days trial$4.991 Month
- Clack Pro$2.99
Nerve
- Nerve Weekly$0.997 Days
- Nerve Monthly$2.991 Month
- Nerve Yearly7 Days trial$9.991 Year
- Cooldown Skip Pack$0.99
- Nerve Pro Lifetime$14.99








