NicoKitty vs Let's duck
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
NicoKitty
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Winner of the Swift Student Challenge 2025 Inspired by the beloved Tamagotchis of the 90s, NicoKitty offers a unique and engaging way to help you quit smoking. Created from personal experience and a heartfelt motivation to honor a lost loved one, this app transforms your quitting journey into a meaningful and interactive experience. Take care of your virtual pixel-art cat, a reflection of your health and well-being. Every cigarette you smoke makes your cat angry and distances itself, reminding you of the consequences of your choices. The more you smoke, the angrier the cat becomes, encouraging responsibility and awareness. Key Features: - Personalized Smoking Limits: Set daily cigarette limits based on your smoking habits (-5, 5β10, +10 cigarettes), with corresponding thresholds (2, 5, or 7 cigarettes). Exceeding these limits increases your catβs anger level. - Daily & Weekly Tracking: Monitor your cigarette intake every day and see your weekly progress at a glance. - Motivational Mini-Game: Play a fun game that increases your catβs happiness and lowers its anger, a healthy distraction to help reduce cravings. - Home Screen Widgets: Quickly add or remove cigarettes smoked directly from your home screen and watch your catβs mood change in real-time. - Apple Watch Support: Manage your cigarette count conveniently on your wrist without needing to open your phone. - Siri Integration: Simply say, βHey Siri, I smoked a cigarette,β and NicoKitty automatically logs it for youβ¦ no taps, no hassle. Quit smoking not just with willpower, but with compassion and interaction. Let NicoKitty guide you on a journey of personal growth and better health.
Let's duck
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A tiny pixel duck on your wrist who keeps you company through every walk, run, swim, ride, and rest day. Let's Duck is a watchOS fitness companion built around one idea: small movement counts, and showing up is the win. Your duck remembers every session, finds little treasures along the way, and quietly cheers you on through your week. YOUR DUCK β’ A pixel-art friend who reacts to your workouts, the time of day, the weather, and the season β’ Different greetings in the morning, at sunset, on anniversaries, on holidays β’ Pet them. They remember every pet you've ever given. β’ They yawn between 6:30 and 7:30 in the morning β’ They look up at sunset β’ They notice when you've been gone 35 WORKOUTS, 8 CATEGORIES β’ Walking, running & hiking β’ Swimming β’ Cycling, indoor & outdoor β’ Strength training β’ Cardio machines β rower, elliptical, treadmill, stair stepper β’ Mind & body β yoga, pilates, tai chi, meditation, stretching β’ Sports β tennis, basketball, soccer, golf, climbing, dance, martial arts β’ Snow & water β skiing, snowboarding, surfing, kayaking, paddle Each one has its own little scene β a path, a pool, a dojo, a court, a slope. The duck adapts to where you are. THE WARM STUFF β’ Streaks with a weekly shield, so one missed day doesn't break the rhythm β’ Rest day mode β your duck rests with you, no streak penalty β’ A treasure shelf where every found object remembers which sport it came from β’ Today's word β a small kindness, changes every day β’ Daily reminders you can skip on the days you already trained β’ Weekly review, sports breakdown, time-of-day patterns β’ Customize your duck β name, color, accessory β’ Walks count too. Even short ones. PRIVACY Your data stays on your watch. No account, no cloud, no analytics. Just you and your duck. DUCK PREMIUM (OPTIONAL) A one-time purchase unlocks every duck color and accessory, the full workout history beyond 7 days, the achievements gallery with 100+ badges, the monthly heatmap, the year-so-far report, and future seasonal cosmetics. Workout tracking, the duck companion, daily reminders, treasures, streaks, scenes, weekly review, and Today's word are free, forever. If you bought Let's Duck before it went free, you're already Premium β thank you for being there from the start. Made for slow days too
Screenshots
Verdict
The clearest difference is in-app purchases: NicoKitty at none against Let's duck's 1. Let's duck's advantage is update cadence (every 3 days vs monthly) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Let's duck sells 1 one-off in-app purchase. NicoKitty asks for nothing beyond the download.
NicoKitty ships an update monthly, Let's duck every 3 days. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.
| Parameter | NicoKitty | Let's duck |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, Apple Watch | iPhone, iPod, Apple Watch β better |
| Requires iOS | 17.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 16 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Matteo Cotena | trung truong |
In-app purchases
NicoKitty
No in-app purchases
Let's duck
- Let's Duck Unlimited$0.99





