NBack vs ZON
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NBack
This scientifically validated cognitive training app is designed to enhance focus, memory, and problem-solving skills. It utilizes the dual n-back method, proven to increase fluid intelligence, offering a challenging yet rewarding experience for those seeking mental improvement.
- Scientifically validated cognitive training
- Dual n-back method for fluid intelligence
- Boosts memory and focus
- Enhances problem-solving skills
- Progress tracking with data-backed gains
- Customizable user experience
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The N-Back Challenge isn’t just a game. It’s a scientifically validated cognitive upgrade — engineered to boost your IQ in just 7 hours total. Built on Research. Designed for Results. Forget brain-training fluff. This is dual n-back — the only method proven to actually increase fluid intelligence, with results published in New York Times, The Wall Street Journal and other top journals. But here’s the truth: It’s brutal. It’s exhausting. It works. If you can complete 20 sessions, you may unlock: • Sharper memory • Faster learning • Enhanced problem-solving • Stronger focus under pressure Track your progress. See real gains — backed by data. All within a beautifully designed, customizable experience. This is not for everyone. But if you’re hungry to evolve, The Challenge awaits. This app is only available in English. Privacy Policy: https://boostiq.app/privacypolicy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ZON
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Your training deserves one app. ZON unifies your workout tracking, nutrition, AI coaching, and athlete data in one elite platform, built for serious athletes. Used by powerlifters, hybrid athletes, Hyrox competitors, and bodybuilders. WHAT ZON DOES FOR YOU Track Every Workout Log sets, reps, and weight. Auto-calculate your 1RM. Track progressive overload across every lift. Master Your Nutrition Log macros with precision. Connect your diet to your training goals. Stop juggling separate apps. AI Coach, Always On Get real-time insights, personalized workout suggestions, and weekly performance reports — powered by AI. Daily Readiness Score Know when to push and when to recover. ZON tracks your readiness so you never overtrain. Connect With Your Coach Share your stats, receive programs, and communicate directly with your coach inside the app. Compete & Level Up Challenge athletes in real-time duels. Earn XP. Climb the ZonRank leaderboard. WHO ZON IS FOR Powerlifters tracking 1RM progression Hybrid athletes managing run + lift volume Hyrox competitors optimizing race prep Bodybuilders tracking macros + volume Athletes working with a coach SIMPLE. POWERFUL. ELITE. Log your workout in real-time Review AI insights after each session Execute the perfect plan, every week Download ZON and train like an elite athlete.
Screenshots
Verdict
The clearest difference is update cadence: ZON at every 3 days against NBack's every 2 months. NBack's advantage is iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support 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. NBack sells 2 in-app purchases, starting at $1.99 per month and ZON sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
NBack ships an update every 2 months, ZON every 3 days. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | NBack | ZON |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 44 MB | 73 MB |
| Age rating | 4+ | 12+ |
| Developer | eric cesar | Tom AGRO |
In-app purchases
NBack
- Monthly membership$1.991 Month
- Yearly membership$14.991 Year
ZON
- Monthly Zon Pro$8.991 Month
- Quarterly Zon Pro$22.993 Months
- Yearly Pro Subscription7 Days trial$69.991 Year









