ShiftNight vs FastWindow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShiftNight
This app creates personalized sleep plans for individuals with irregular schedules. It provides recommendations for sleep, caffeine intake, and naps based on your unique daily routine, helping you optimize rest and recovery.
- Personalized sleep plans
- Schedule-aware recommendations
- Caffeine timing guidance
- Nap planning
- Sleep tracking
- Recovery day transitions
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Fall asleep faster, sleep longer and track your sleep sounds. ShiftNight designs the best sleep possible for your busy schedule. Optionally pairs with Apple Watch, Oura Ring, and any Apple Health enabled wearable. Keep notes about your nights, dreams, and medications in your sleep journal. Personalize by adding your schedule: shifts, life events, school. See when to sleep, when to stop caffeine, and when a quick rest fits. No generic bedtime reminders. No advice built for someone who sleeps at 10pm. What ShiftNight does: - Sleep tracking: See sleep quality and stages improve over time! Log and record your sleep with one tap. - Schedule-aware: Personalize your schedule! Recommendations shift when your schedule shifts - Visual timeline: See your shift, sleep zones, caffeine cutoff, and rest windows on one screen - Caffeine timing: Know exactly when to stop so it does not wreck your post-shift sleep Who it is for: Inconsistent sleep schedules. Night shift workers on 12-hour rotations (7pm to 7am, 6pm to 6am, and similar patterns). Nurses in ICU, ER, Med-Surg, and telemetry. Security, warehouse, factory, and EMS workers. Travel nurses and new grads adjusting to nights for the first time. Multiple full time or part time jobs Entrepreneurs Subscription pricing & terms: A Paid Subscription is required to access the content of the app. Subscriptions automatically renew at the chosen plan price unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://shiftnight.com/privacy Terms of Use: https://shiftnight.com/terms
FastWindow
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FastWindow does one thing. It shows you how long you've been fasting and when you can eat. Every major fasting app has become a wellness platform — coaching subscriptions, quizzes, recipe feeds, and paywall friction. FastWindow strips all of that away. ONE-TAP FASTING TIMER Open the app. Tap start. Done. No quiz about your goals. No onboarding survey. No account creation. Just a clean fasting timer that works. You see two things: • How long you've been fasting (elapsed time) • When you can eat (remaining time) That's it. That's the app. FASTING PRESETS BUILT IN Choose your fasting window in one tap: • 16:8 (16 hours fasting, 8 hours eating) • 18:6 (18 hours fasting, 6 hours eating) • 20:4 (20 hours fasting, 4 hours eating) • OMAD (One Meal A Day) • Custom durations (Pro feature) No coaching. No meal plans. No calorie tracking. Just fasting. FEATURES THAT MATTER • One-tap fasting timer • Live elapsed and remaining time • Fasting presets (16:8, 18:6, 20:4, OMAD) • 7-day fast history at a glance • Calendar heatmap to see patterns • Backdate your start time if you forget to start the timer • Local notifications when your fast ends • No account required. Ever. • No subscription. Ever. FASTWINDOW PRO — One Time Purchase Upgrade once to unlock: • Unlimited fast history (beyond 7 days) • Custom fasting durations (set any hours:minutes) • Weight log with trend visualization • Apple Health export (weight, fasting data) • Advanced stats (average fast length, streak tracking) Pay once. £4.99. Yours forever. No renewal, no monthly fee, no subscription. WHY FASTWINDOW EXISTS The fasting app category has a problem. Every major app pushes you toward: • Subscription upsells (coaching, premium insights, meal plans) • Onboarding quizzes (goals, weight, activity level, dietary preferences) • Wellness bloat (recipes, articles, community challenges, step tracking) FastWindow rejects all of that. If you need a fasting coach, use Zero. If you want recipes and meal plans, use Fastic. If you want community challenges, use BodyFast. But if you just want to know how long you've been fasting — and that's it — FastWindow is for you. PERFECT FOR • People practicing intermittent fasting (16:8, 18:6, OMAD, etc.) • Users frustrated by fasting app subscriptions • Anyone who wants a timer, not a wellness platform • People who value simplicity over features • Users tired of onboarding quizzes and paywalls WHO FASTWINDOW IS NOT FOR FastWindow does not provide: • Coaching or fasting advice • Meal plans or recipes • Calorie tracking or macros • Community features or challenges • Water intake or step tracking • Body measurements beyond weight If you need those features, consider Zero, Fastic, or BodyFast. FastWindow is intentionally minimal. PRIVACY & SIMPLICITY • No account creation required • No email, no password, no profile • All data stored locally on your device • No cloud sync (intentional — keeps it simple) • No third-party analytics or tracking • Offline-first design NO SUBSCRIPTION MEANS NO SUBSCRIPTION Other fasting apps say "free" but push monthly subscriptions for basic features like custom fasting durations or history beyond 7 days. FastWindow is different: one optional upgrade, one price, lifetime access. No coaching upsells, no premium tiers, no renewal fatigue. Free version: 7-day history, preset durations (16:8, 18:6, 20:4, OMAD), basic timer Pro version: £2.99 once, everything unlocked, forever MEDICAL DISCLAIMER FastWindow is not medical advice. Consult a healthcare professional before beginning any fasting program, especially if you have a medical condition or take medications. SUPPORT & CONTACT Questions? Feedback? Contact us at karl@projectsnaplabs.com FastWindow is independently developed with your focus and simplicity as the top priorities. Download FastWindow today and track your fasts without the bloat, subscriptions, or friction.
Screenshots
Verdict
The clearest difference is iOS requirement: FastWindow at 15.1 against ShiftNight's 17.4. 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. ShiftNight sells 11 in-app purchases, starting at $8.99 per 7 days and FastWindow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | ShiftNight | FastWindow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (54 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 54 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 196 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | HAVEN VU | PROJECTSNAPLABS LTD |
In-app purchases
ShiftNight
- Weekly$8.997 Days
- Weekly$9.997 Days
- Monthly$14.991 Month
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- Annual$29.991 Year
- Annual$39.991 Year
- Annual$49.991 Year
- Annual$59.991 Year
- Annual3 Days trial$59.991 Year
- Annual7 Days trial$59.991 Year
- Annual$69.991 Year
- Lifetime$69.99
FastWindow
- FastWindow Pro$4.99









