Comparison

Next15 vs Kaptain

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

Head to head
About

Next15

Features
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Tired of failing at cold turkey? Next15 helps you quit smoking gradually — your interval grows by 15 minutes after each cigarette. Track every cigarette, watch your intervals grow, and reduce nicotine step by step. Slipped up? The app won't reset your progress — it supports you with a soft rollback. The 15-minute method allows your body and mind to adapt to reduced nicotine without harsh restrictions. The app tracks honest statistics, reminds you of your goals through personalized motivation cards, and helps you maintain the right interval with convenient timers (Live Activity) that work even on your locked screen. Key features: • Smart Timer: You know exactly when you can take a smoke break and when to wait. The app automatically increases the interval by 15 minutes when you're ready. • "Freedom" Mode: Decided to quit for good? Start the total freedom counter and take pride in every minute without tobacco. • Motivation Cards: Add your own reasons to quit (health, savings, family) and they'll support you right on the main screen. • Honest Statistics: Track the number of cigarettes smoked per day and your overall progress. • Live Activity Widgets: The timer is always in front of your eyes right on your iPhone's lock screen, so you never miss a break time. Remember: Next15 is a tool. The key is within you. If you've truly decided to quit, we'll help make this journey comfortable and clear.

About

Kaptain

Features
Read full description

Kaptain organizes your training around your real life: your workouts automatically find their place in your calendar, without ever clashing with an appointment. Tell us your goals, your level and your availability, and Kaptain builds your training week: each workout is placed intelligently in your free time slots, at the right moment to progress and recover. WHAT KAPTAIN DOES • Schedules your workouts automatically, around your real calendar • Builds a program tailored to your goals and level • Tracks your progress workout after workout • Reminds you of your workouts at the right time and recaps your week • Connects to Apple Health to factor in your activity • Apple Watch app: view your workout of the day, complete or shift it, and track your streak right on your wrist KAPTAIN PRO Kaptain Pro unlocks the advanced features: • AI Coach — chat with Kaptain like a real coach (“move my workout to tomorrow”, “I’m tired this week”): it understands your context, advises you and adjusts your program, and you always have the final say. • Home screen and Apple Watch widgets (hydration, nutrition) • Custom app icons • More features on the way Subscription • 7-day free trial, then a yearly or monthly subscription The free trial is offered once, on the annual plan, to eligible accounts. The subscription renews automatically unless canceled at least 24 hours before the end of the period; manage it in your App Store account settings. AI Coach — credits The Pro subscription includes a set number of AI Coach messages per day. Beyond that, additional credits (in-app purchase, 1 credit = 1 message) let you keep the conversation going. Kaptain uses your location only to show the weather for your outdoor workouts. Your health data is used to organize your training and stays on your device. If you use the AI Coach, part of your context (calendar, activity) is sent to our AI provider, with your consent and only to generate its reply — never for advertising. Terms of Use (EULA): use of Kaptain is governed by Apple's standard End User License Agreement, available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Next154 screens
Kaptain4 screens

Verdict

The call

The clearest difference is in-app purchases: Next15 at none against Kaptain's 4. Kaptain's advantage is ads (none vs shown). On price, update cadence, 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

Both are free to download. Kaptain sells 4 in-app purchases, starting at $4.99 per month. Next15 asks for nothing beyond the download.

UpkeepUpdate frequency

Next15 ships an update every 9 days, Kaptain every 5 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 4 level
Next15 versus Kaptain: the parameters behind the verdict, then further details
ParameterNext15Kaptain
PriceFreeFree
Update frequencyEvery 9 daysEvery 5 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size35 MB101 MB
Age rating17+4+
DeveloperValentin SmolinFrederic Dinand

In-app purchases

None

Next15

No in-app purchases

4 purchases

Kaptain

Subscriptions2
  • Kaptain Pro Mensuel$4.991 Month
  • Kaptain Pro Annuel$34.991 Year
One-time2
  • 100 crédits Coach$2.99
  • 500 crédits Coach$8.99

Questions

Is Next15 free?
Next15 is free to download, with no in-app purchases.
Is Kaptain free?
Kaptain is free to download, with in-app purchases available.
Do Next15 or Kaptain have ads?
Next15 shows ads; Kaptain does not.
Which is updated more often, Next15 or Kaptain?
Next15 ships an update every 9 days, and Kaptain every 5 days. Most recently, Next15 was updated on October 9, 2026 and Kaptain on October 7, 2026.

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