Comparison

Tree vs Nerve

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tree

Features
Read full description

Headline: Your life needs an index. Tree adopts a minimal hierarchy to map your complex personal life into lightweight metadata. Stop trying to remember everything—use Tree to remember "how to find everything." Core Highlights: Metadata Mindset: Manage your life like clean code. Every node is a gateway to deeper information, condensing infinite complexity into an orderly directory. Dual-View Design: Canvas Mode: A God's-eye view. Zoom and pan on an infinite canvas to perceive the grand structure of your knowledge. Card Mode: Focus on the "now." Dive deep into specific branches and eliminate all external noise. Intuitive Interaction: Tap to expand, long-press for menus, and drag to reorganize. Every gesture is designed for pure intuition. Data Sovereignty: Markdown import/export with plain text storage. Your data always belongs to you. Why Tree? Cognitive Alignment: The human brain is naturally wired for hierarchy. Tree syncs with your innate cognitive patterns. The Ultimate Index: From root to leaf, our efficient retrieval logic guides you directly to your life’s milestones. Monochrome Aesthetics: Stripped of distractions, leaving only space for your thoughts. "The simpler the index, the vaster the world you command."

About

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.

Highlights
  • 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
Features
Read full description

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

Tree4 screens
Nerve4 screens

Verdict

The call

The clearest difference is price: Nerve at Free against Tree's $0.99. Nerve also leads on update cadence (every 4 days vs every 8 days). Tree's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Nerve is free to download; Tree costs $0.99 up front. Nerve sells 5 in-app purchases, starting at $0.99 per 7 days. Tree asks for nothing beyond the download.

UpkeepUpdate frequency

Tree ships an update every 8 days, Nerve every 4 days. The most recent releases landed on September 14, 2026 and August 16, 2026 respectively.

Scorecard3 real differences · 7 level
Tree versus Nerve: the parameters behind the verdict, then further details
ParameterTreeNerve
Price$0.99Free — better
Rating—4.9 (15 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—15 — better
Update frequencyEvery 8 daysEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPad — betteriPhone
Requires iOS17.6 — better18.6
Further details — not scored
Size4 MB15 MB
Age rating4+4+
Developer绪 陈Best Day Labs, LLC

In-app purchases

None

Tree

No in-app purchases

5 purchases

Nerve

Subscriptions3
  • Nerve Weekly$0.997 Days
  • Nerve Monthly$2.991 Month
  • Nerve Yearly7 Days trial$9.991 Year
One-time2
  • Cooldown Skip Pack$0.99
  • Nerve Pro Lifetime$14.99

Questions

Is Tree free?
Tree costs $0.99, with no in-app purchases.
Is Nerve free?
Nerve is free to download, with in-app purchases available.
Do Tree or Nerve have ads?
Neither Tree nor Nerve shows ads.
Which is updated more often, Tree or Nerve?
Tree ships an update every 8 days, and Nerve every 4 days. Most recently, Tree was updated on September 14, 2026 and Nerve on August 16, 2026.

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