SweetWonder vs Caffeine Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SweetWonder
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SweetWonder is a calm, quick tracker for the first years — and for the mother, not just the baby. TRACK THE DAY IN A TAP Sleep, feeds, nappies, awake time and temperature, on one timeline. Start a nursing timer and it keeps counting with your phone locked. Log by voice when your hands are full. KNOW WHAT COMES NEXT Every awake entry tells you when the next sleep is due. Every feed tells you when the next one is. Both work from your own wake window and feeding interval when you've set them, and from age-appropriate guidance when you haven't — so you stop doing the arithmetic in your head at six in the morning. A SLEEP PLAN THAT'S YOURS Enter the wake windows and nap lengths your consultant gave you, or a simple "wake me after 45 minutes" cap. Reminders follow the plan, and change the moment you change it. Set how much night sleep your baby needs and see at a glance whether last night came up short — and when that moves the first nap to. EXPECTING Add your due date — or just how far along you are — and the antenatal visits lay themselves out. Read week by week what's developing and what to expect. Time contractions with a clear 5-1-1 signal. Keep your own weight and blood pressure against the ranges that matter. Pack the hospital bag and note what you want for the birth. AFTER THE BIRTH, FOR YOU TOO Log pumping sessions and track your milk stash — fridge, freezer, expiry dates, and which bag to use next. Check in on your own mood. Keep your appointments beside the baby's. GROWING UP Weight, height and head circumference plotted against WHO reference curves. Milestones with photos. Medicine doses with reminders. A vaccination checklist you can edit. Nappy supply, so somebody notices before you run out. SHARE IT WITH YOUR PARTNER Invite the other parent and you both see the same day as it happens. Everything backs up to your account, so a new phone picks up where the old one left off. MADE FOR TIRED PEOPLE Big targets, few taps, no clutter. English and Bulgarian throughout. Milestone photos stay on your device — they are never uploaded. SweetWonder keeps records and does arithmetic. It is not a medical device and gives no diagnosis. Guidance in the app is general information drawn from public sources such as the NHS, ACOG, the WHO and the CDC — your midwife, doctor or health visitor knows you and your baby, and they come first. Always contact them when something worries you, whatever the app shows. SweetWonder Premium is an auto-renewing subscription. • Monthly — 6.99 / month • Yearly — 39.99 / year Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your device Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mysweetwonder.com/privacy/
Caffeine Tracker
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Caffeine Tracker tells you how much caffeine is in your body right now and when to stop for a good night's sleep. Log a flat white, a builder's tea or a can of Monster in one tap. Caffeine Tracker models how your body clears caffeine and shows a live curve for the day, a "last drink by" time for your bedtime, and a reminder before it is too late. Connect Apple Health and see how your caffeine lines up with your sleep. On days you drink coffee late, do you sleep less? Caffeine Tracker compares your own nights and tells you in plain English. WHAT YOU GET • Drink library with local chains by size: Costa, Pret, Starbucks, Caffè Nero and Greggs in the UK, plus Kahve Dünyası, Espressolab, Tchibo, Coffee Fellows, Columbus Café, Coffeecompany and more in Turkey, Germany, France, the Netherlands and Portugal; generic coffees, teas, energy drinks and cola everywhere • Custom drinks and favourites for one-tap logging • Live "caffeine in your body" gauge and daily curve • Bedtime cut-off: set your target bedtime and a caffeine limit; the app works out your last-drink time • Last-drink reminder and optional morning summary • Apple Health: writes the caffeine you log, reads your sleep, heart rate and HRV • Works with any wearable that syncs to Apple Health, including Apple Watch, Oura, Garmin, Polar and Withings • Sleep & Caffeine: your first insight, free • Home Screen widget, Apple Watch app EVERYTHING FREE FOR 14 DAYS Install, and every Premium feature is unlocked for two weeks — no card needed. After that the core app stays free. PREMIUM • Caffeine Coach: a weekly AI note and answers to questions like "when should my last coffee be today?", grounded in your own numbers • Works with WHOOP: see each morning's recovery next to yesterday's caffeine, in plain words. • All sleep insights, unlimited history and 30-day trends • Morning summary notification • Medium and Lock Screen widgets, Apple Watch logging and complications • Weekly report you can share as PDF, and CSV export of all your data • Personal half-life estimate learned from your own sleep data Premium is a subscription: £4.99 a month or £39.99 a year. Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple ID › Subscriptions. PRIVACY Your drinks and Apple Health data stay on your device. No ads, no tracking. Caffeine Tracker shows relationships in your own data. It is not medical advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://api.pucl.co.uk/privacy WHOOP is a trademark of WHOOP, Inc. Caffeine Tracker is not affiliated with or endorsed by WHOOP.
Screenshots
Verdict
The clearest difference is iOS requirement: Caffeine Tracker at 17.0 against SweetWonder's 26.2. On price, update cadence, ads and in-app purchases 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. SweetWonder sells 2 in-app purchases, starting at $6.99 per month and Caffeine Tracker sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.
| Parameter | SweetWonder | Caffeine Tracker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 6 MB |
| Age rating | 17+ | 4+ |
| Developer | Marian Donchev | Pucl Coffee Roastery and Software LTD |
In-app purchases
SweetWonder
- Premium Monthly$6.991 Month
- Premium Yearly$39.991 Year
Caffeine Tracker
- Premium Monthly$5.991 Month
- Premium Yearly$49.991 Year









