Ark Nutrition vs System Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ark Nutrition
Effortlessly track your nutrition with advanced AI. Log meals instantly using your camera, voice, or by scanning receipts and barcodes. Get personalized meal plans and track hydration and intermittent fasting.
- AI Photo Logging (Ark Lens)
- Hands-Free Voice Logging
- Order & Receipt Scanner
- Barcode & Label Scanner
- Intermittent Fasting Tracker
- Wearable Sync for Readiness Score
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Ark Nutrition: AI Calorie & Macro Tracker Ark Nutrition is a smart nutrition tracker that eliminates tedious food logging. Powered by advanced AI, log your nutrition instantly using your camera, voice, barcodes, and delivery screenshots. KEY FEATURES: • AI Photo Logging (Ark Lens): Snap a plate or menu. Ark Lens calculates portions and extracts full macro and micronutrient breakdowns. • Hands-Free Voice Logging: Speak naturally (e.g., "Three scrambled eggs and an iced coffee"). Logged in seconds. • Order & Receipt Scanner: Screenshot your DoorDash or Uber Eats receipt for brand-accurate macro logging. • Barcode & Label Scanner: Fast barcode lookup and nutrition label OCR for verified accuracy. • Intermittent Fasting: Track fasts with a 24-hour visual clock, presets (16:8, OMAD), and fasting history. • Pour-to-Log Hydration: Interactive water tracking with daily goals and weekly trends. • Coach Ark & Meal Plans: Personalized coaching with macro-balanced weekly meal plans and easy swaps. • Wearable Sync: Sync steps, sleep, and HRV via Apple Health & Health Connect for a daily Readiness Score (0-100). *Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/*
System Lock
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System Lock transforms focus, discipline, and productivity into a real-life progression system. Instead of endlessly scrolling, complete quests, build streaks, unlock achievements, and earn your screen time through intentional habits and focused sessions. Designed with a gamified RPG-inspired experience, System Lock helps you reclaim control over distractions while turning consistency into progression. System Lock Premium (Subscription Required) A System Lock Premium subscription is required to access the app’s core productivity and focus features, including: • Block distracting apps during focus, study, work, sleep, or deep focus sessions • Create smart schedules for automatic app restrictions • Complete quests and challenges to earn screen time • Track screen time, focus sessions, and usage trends • Unlock achievements, streaks, and progression rewards • Build discipline through gamified productivity systems • Stay intentional with your time and reduce endless scrolling Subscription pricing and available plans are displayed clearly within the app before purchase. Privacy Policy: https://systemlock.app/privacy Terms of Use (EULA): https://systemlock.app/terms
Screenshots
Verdict
The clearest difference is iOS requirement: Ark Nutrition at 15.1 against System Lock's 17.0. On price, update cadence, ads and in-app purchases 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. Ark Nutrition sells 2 in-app purchases, starting at $4.99 per month and System Lock sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Ark Nutrition ships an update weekly, System Lock every 6 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | Ark Nutrition | System Lock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 52 MB | 89 MB |
| Age rating | 4+ | 9+ |
| Developer | Belynx Labs | Mark Angelo Atienza |
In-app purchases
Ark Nutrition
- Arkonix Elite Monthly1 Month trial$4.991 Month
- Arkonix Elite Annual$49.991 Year
System Lock
- System Lock Pro$4.997 Days
- System Lock Pro$9.991 Month
- System Lock Pro$19.991 Year
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- System Lock Pro$49.991 Year
Questions
Is Ark Nutrition free?
Is System Lock free?
Do Ark Nutrition or System Lock have ads?
Which is updated more often, Ark Nutrition or System Lock?
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