Vazio vs Meridian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vazio
This app offers a minimalist approach to intermittent fasting with a focus on privacy and a clean interface. It provides tools to track fasting periods, understand metabolic stages, and view progress directly on your device's lock screen.
- Live Activities for Dynamic Island and Lock Screen
- Flexible fasting presets (16:8, 18:6, 20:4, OMAD)
- Metabolic stage tracking (Sugar Burning, Ketosis, Autophagy)
- Privacy-focused data storage on-device/iCloud
- Home Screen widgets for quick start/stop
- Dark Zen interface
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Vazio is a private, ad-free intermittent fasting timer for people who want a calmer way to follow their routine. Start a 16:8, 18:6, 20:4, OMAD, or custom fast and see the time that matters at a glance. Stay in rhythm with daily reminders, Home Screen widgets, and a clean native iPhone experience designed for focus—not clutter. FAST WITH CLARITY • Flexible Timer: Choose 16:8, 18:6, 20:4, OMAD, or a custom fasting window. • Daily Reminders: Keep your preferred start time on track and begin a fast from the notification. • Widgets: Start or stop a fast quickly from your Home Screen. • History That Fits Real Life: Log a missed fast or edit a session when plans change. • Metabolic Timeline: Explore the stages of your fasting timeline as it progresses. VAZIO PRO Unlock Live Activities for your Lock Screen and Dynamic Island, unlimited history, advanced progress insights, Health app weight trends, and custom themes. Vazio is free to download. Optional annual Vazio Pro subscriptions unlock premium features and can be managed or canceled in your Apple ID account settings. Your privacy matters. Review Vazio's App Privacy details and Privacy Policy in the App Store for the current data-handling information. Details are available in the Terms of Service, available here: https://vazio.app/legal/terms/
Meridian
This app offers a straightforward approach to intermittent fasting, focusing on a clean interface and scientific insights into metabolic phases. It allows users to start and stop fasting with ease, track custom schedules, and understand their body's processes without intrusive features or upselling.
- One-tap start/stop timer
- Metabolic phase insights
- Built-in and custom schedules
- Data stays on device
- Optional Apple Health integration
- Clean, intentional design
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Meridian is the fasting app for people who are tired of fasting apps. No 15-screen onboarding quiz. No AI coach upselling you a meal plan. No gamification badges. No paywall on the timer. Just a clean, powerful tool that respects your intelligence and your time. START IN SECONDS One tap to start. One tap to stop. Meridian tracks your fasting window, shows what's happening in your body at each metabolic phase, and stays out of your way. Every schedule built in — 14:10, 16:8, 18:6, 20:4, OMAD, or set your own custom window. REAL SCIENCE, NOT SLOGANS Each body phase is grounded in peer-reviewed metabolic research. Know when glycogen depletes. Know when ketosis begins. Know when autophagy ramps up. Meridian tells you what's actually happening — with citations, not marketing copy. YOUR DATA STAYS ON YOUR DEVICE No account required. No cloud sync you didn't ask for. No analytics tracking your behavior. All data lives on your iPhone and stays there. Optional Apple Health integration reads and writes only with your explicit permission. DESIGNED WITH INTENTION Every screen earns its place. Meridian follows a less-but-better philosophy — no feature creep, no settings bloat, no dark patterns. Dark mode and light mode. Clean typography. A timer that's beautiful enough to leave on your nightstand. BUILT-IN SCHEDULES • 14:10 — Gentle start for beginners • 16:8 — The most popular protocol • 18:6 — Deeper metabolic benefits • 20:4 — The Warrior approach • OMAD — One Meal A Day • Custom — Set any window you want MERIDIAN PREMIUM Unlock deeper insights and advanced features for less than a coffee: • Detailed fasting history and trends • Body phase insights with metabolic data • Advanced streak tracking • Custom schedule presets • Full data export $1.99/month · $14.99/year (save 37%) · $39.99 lifetime No free trial. No tricks. At this price, you'll know within a day if Meridian is for you. Privacy policy: https://trymeridian.today/privacy-policy Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://trymeridian.today/support
Screenshots
Verdict
Vazio and Meridian are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Vazio sells 3 in-app purchases, starting at $0.99 per 7 days and Meridian sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Vazio against 5.0 for Meridian. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Vazio | Meridian |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.6 | 17.6 — better |
| Further details — not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 17+ | 12+ |
| Developer | Andres Rojas | ZACHARY MARK MULLIGAN |
Customer experience
Vazio
Meridian
In-app purchases
Vazio
- Weekly Plan$0.997 Days
- Monthly Plan$1.991 Month
- Annual Plan7 Days trial$12.991 Year
Meridian
- Meridian Premium$1.991 Month
- Meridian Premium$14.991 Year
- Meridian Premium (Lifetime)$39.99









