Comparison

CVS Tracker vs Nibble

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CVS Tracker

This app helps parents and caregivers meticulously log Cyclical Vomiting Syndrome episodes. It offers quick logging, detailed symptom tracking, medication records, and pattern analysis. Premium features include PDF/CSV reports and family sharing with cloud backup.

Highlights
  • One-tap episode logging
  • Lock Screen and Dynamic Island integration
  • Timeline view per episode
  • Medication recording and reminders
  • Pattern analysis of episodes
  • Doctor report generation (PDF/CSV with Premium)
  • Family sharing and cloud backup (Premium)
Features
Read full description

CVS Tracker helps parents and carers record Cyclical Vomiting Syndrome episodes with calm, organised logging, even in the middle of the night. ONE TAP TO LOG Tap Sick now and the time is recorded, starting an episode if one isn't running. Add more when you can: how severe, symptoms, sleep and notes. If you tap by mistake, Undo is right there. SICK NOW FROM ANYWHERE While an episode is running, the Lock Screen and Dynamic Island show when they were last sick and how many times so far, with a Sick now button that records the time without opening the app. You can also long-press the app icon, ask Siri, use Shortcuts or the Action button, or add a Control Center button. Names stay off the Lock Screen unless you switch them on. ONE TIMELINE PER EPISODE Everything logged in an episode appears in one timeline, with when they were last sick at the top. Tracking more than one person? The app asks who's sick and keeps an episode for each. MEDICINES, AS YOU ENTER THEM Medicines are recorded exactly as you type them, and ones you've recorded before can be entered again in a tap. Set an optional reminder at the interval you choose; it tells you what was given and when. PATTERNS Plain answers about what you've recorded: how often episodes happen, how long they last and when they start. DOCTOR REPORT A clear summary of one episode or a period, to share with your medical team. Share it as a PDF, or as a CSV for spreadsheets, with Premium. EASY ON TIRED EYES Light and dark appearances, with colours that dim and warm automatically at night. FAMILY SHARING (Premium) Each carer uses their own account. Whoever logs, both phones stay in step, and each entry shows who logged it. One Premium purchase covers your whole family and includes cloud backup. PRIVATE BY DESIGN Your records are stored on your iPhone and work offline; no account is needed unless you share or back up. App Lock can ask for Face ID or your passcode. No ads, no data selling, no unnecessary tracking. CVS Tracker records what you enter. It doesn't give medical advice, diagnose, or suggest medicines or doses. Always follow your medical team's guidance. The Lock Screen needs iOS 17 or later; the Control Center button needs iOS 18 or later.

About

Nibble

Features
Read full description

Nibble helps dogs and cats lose weight safely — and tells you exactly how much to feed today. Score your pet's body condition, enter the calories printed on the food bag, and Nibble turns it into grams per meal. Tap each meal as you serve it, keep treats inside a small daily allowance, and weigh in once a week. Nibble watches the pace so your pet never loses too fast. TODAY'S MEALS, AT A GLANCE Ā· Grams per day and per meal, worked out from your food's calories Ā· Tap a meal once it's served — in the app or right from the Home Screen widget Ā· Optional scoop or cup conversion: weigh your scoop once, then see "ā‰ˆ ½ cup" KNOW WHERE YOUR PET STANDS Ā· Body Condition Score (BCS 1–9) with illustrations that change as you score Ā· Risk notes based on breed, neutering, age and activity A PACE THAT STAYS SAFE Ā· Weekly loss guardrails: at most 1.5% for dogs and 0.7% for cats Ā· Cats must never lose weight fast — Nibble flags it right away Ā· A coach note after every weigh-in: steady, too fast, plateau or below target TREATS WITHOUT GUESSWORK Ā· A separate treat allowance of up to 10% of daily calories Ā· Low-calorie treat ideas with one-tap logging, undo and portion edits WEIGH-INS MADE EASY Ā· Can't weigh your pet alone? Step on the scale holding them — Nibble subtracts your weight Ā· Add a weigh-in you missed, fix or delete an entry Ā· Trend line, milestones and monthly photo comparisons EXPORT & SHARE Ā· A one-page weight report (PDF) to bring to checkups, plus a CSV of every weigh-in and treat YOURS, AND ONLY YOURS Ā· No account and no ads. Your records stay on your device. Nibble gives everyday reference numbers, not medical advice. Please confirm the target weight and pace with your vet before you start.

Screenshots

CVS Tracker4 screens
Nibble4 screens

Verdict

The call

The clearest difference is in-app purchases: Nibble at none against CVS Tracker's 1. On price, update cadence, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. CVS Tracker sells 1 one-off in-app purchase. Nibble asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

Scorecard1 real difference Ā· 7 level
CVS Tracker versus Nibble: the parameters behind the verdict, then further details
ParameterCVS TrackerNibble
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size41 MB5 MB
Age rating4+4+
DeveloperThomas WinterYeonni Lee

In-app purchases

1 purchases

CVS Tracker

One-time1
  • CVS Tracker Premium$4.99
None

Nibble

No in-app purchases

Questions

Is CVS Tracker free?
CVS Tracker is free to download, with in-app purchases available.
Is Nibble free?
Nibble is free to download, with no in-app purchases.
Do CVS Tracker or Nibble have ads?
Neither CVS Tracker nor Nibble shows ads.
Which is updated more often, CVS Tracker or Nibble?
CVS Tracker ships an update weekly, and Nibble weekly. Most recently, CVS Tracker was updated on October 31, 2026 and Nibble on November 3, 2026.

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