App comparison

Unbuzz Alternative: Unbuzz vs Caffeine vs Water, Compared Fairly

Looking for an Unbuzz alternative? The Unbuzz app vs Caffeine vs Water on bedtime estimates, water, Apple Watch, privacy and price (September 2026).

By the Caffeine vs Water team · 28 September 2026 · 6 min read

Unbuzz is one of the newest caffeine trackers on iPhone, from Swiss developer Health3 AG, launched in February 2026 and updated often since. If you're looking for an Unbuzz alternative (the full field is in our best caffeine tracker apps comparison), you'll find Caffeine vs Water is close in spirit. Both are built around bedtime, not just totals. The differences are in water, privacy and how much of the app you can use from your wrist and your voice.

We make Caffeine vs Water, so we're biased; here's how we checked. Every Unbuzz fact below comes from its US App Store listing (description, version notes, privacy label, in-app purchases) and the official unbuzz.app site and privacy policy, read in September 2026. Where neither mentions a feature, we write "not listed", which doesn't mean it's missing.

The Unbuzz alternative at a glance: Unbuzz vs Caffeine vs Water

Where Caffeine vs Water is different

A decaf swap, right when the drink won't fit

Unbuzz's "Before You Drink" lets you pick a drink and see how it lines up with your bedtime before you log it, and every log shows the consequence with an undo. That's a genuinely good idea, and Caffeine vs Water works the same way in spirit. What we add is the next step. It's 3:40 pm and you're in the Starbucks line; you had a coffee at 8 am and go to bed at 11 pm. The app shows "You can still have ~85 mg". A 150 mg grande latte would leave about 76 mg at bedtime, so it asks: "Log anyway", "Log a decaf instead", or cancel. The same prompt appears on Apple Watch and through Siri, and you can simply ask "Can I still have coffee in Caffeine vs Water?"

Water counts, including your coffee

Unbuzz is caffeine-only in its listing. Caffeine vs Water shows a live caffeine curve and a water goal side by side. The goal starts at 33 ml per kg of body weight and adds the activity and hot-weather settings you choose. Every drink's volume counts toward it, coffee included, and after a strong drink it can remind you to pair a glass of water. That's a habit, not a way to cancel out caffeine. More in what counts as water intake.

No account, no analytics, no network

Unbuzz's privacy policy says caffeine data stays on your device by default, analytics are off unless you opt in, and an account (with your email) is only needed for cloud sync. That's thoughtful. Its App Store privacy label still lists email address and user ID as data linked to you. Caffeine vs Water has no account option at all, no ads, no analytics or third-party SDKs and makes no network calls; your log lives on your iPhone and in Apple Health, and the Watch syncs directly with the phone.

Logging that comes to you

Both apps remind you. Caffeine vs Water adds a reminder at your usual coffee time (skipped if you've had caffeine in the last 2 hours), suggestions learned from your history, and an alert when you arrive at your usual café, each with a "Log it" button in the notification. On top of that: a Live Activity with active mg and mg at bedtime, Control Center controls for "Log Water" and "Log Caffeine", and a full Apple Watch app with complications.

Where Unbuzz is stronger

• Help cutting back. Reduction goals with pace, pause and progress, caffeine challenges, streaks and milestones with a bear companion. Caffeine vs Water has no taper program; if that's your goal, read how to cut back on caffeine.
• A bigger catalog. 1,000+ real products (Starbucks, Dunkin', Red Bull, Monster and more) against our 640+.
• Finer half-life tuning. A short questionnaire sets your personal half-life, then a dial adjusts it in 0.1-hour steps. We offer six presets or a custom 2–15 h value.
• Languages. Twelve, including French, German, Spanish, Japanese and Korean. We're English only.
• Optional cloud sync and sharing. Sync through an account if you want it, and share your estimate as an image. We have no cloud sync or export.
• It's available now and has a free tier.

Who should choose Unbuzz

Pick Unbuzz if you want to reduce your caffeine with goals and streaks, enjoy a playful, gamified app, drink a lot of branded energy drinks or chain coffee, or want the app in a language other than English. It's also a good fit if you already know you're a fast or slow metaboliser and want to dial your half-life precisely (background: caffeine metabolism and genetics).

Who should choose Caffeine vs Water

Pick Caffeine vs Water if you want one app for caffeine and water, if you'd rather swap to decaf than just be told "no", if you log mostly from your Watch, Siri or notifications, or if "no account and no network" matters to you. Honest limits: it isn't launched yet, it's iPhone and Apple Watch only, it has no data export or iCloud sync, and insights cover 7 days. For how we picked the 50 mg bedtime line, see when to stop drinking coffee before bed.

Unbuzz app pricing vs Caffeine vs Water

As of September 2026, the Unbuzz app is free to download. Its US App Store listing shows three Pro purchases: Unbuzz Pro at $1.49, Pro (Annual) at $7.99 and Pro (Lifetime) at $14.99. Widgets are a Pro feature according to its website. Caffeine vs Water's pricing hasn't been announced. To test a drink before launch, try our free bedtime caffeine calculator.

Sources

1. App Store. Unbuzz: Caffeine Tracker (description, version history, privacy label, in-app purchases). Accessed September 2026.
2. Unbuzz. Official website and privacy policy. Accessed September 2026.
3. Gardiner C, et al. The effect of caffeine on subsequent sleep: a systematic review and meta-analysis. Sleep Med Rev, 2023.
4. Nehlig A. Interindividual differences in caffeine metabolism and factors driving caffeine consumption. Pharmacol Rev, 2018.

General wellness information, not medical advice. If you're pregnant, have a heart condition, or take medication that affects caffeine, check your limits with a doctor.