Comparison

Lullalog vs Transurf

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

Head to head
About

Lullalog

This app helps parents track their baby's sleep, feeding, diapers, growth, and more. It offers features like one-handed operation, nighttime mode, and live activity updates. Privacy is a priority with local-first storage and optional iCloud sync.

Highlights
  • Sleep tracking with Live Activity
  • Feeding and diaper logging
  • Growth tracking with WHO percentiles
  • Nursery Mode for nighttime use
  • Optional iCloud sync for co-parents
  • Apple Watch app and Siri Shortcuts
Features
Read full description

Lullalog is the private baby tracker designed for 3am. No app account. No ads. No subscription. Local by default, with optional iCloud sync for co-parents. TRACK EVERYTHING • Sleep — one-tap timer with Live Activity on Lock Screen and Dynamic Island • Feeding — breast (left/right timer), bottle, and solids • First Bites — age-gated food examples, evidence-linked nutrient context, preparation guidance, and a structured food journey log • Diapers — quick-log in two taps • Pumping — timer with volume tracking • Growth — weight, height, head circumference with WHO percentile curves • Play & Learn — short activities matched to developmental age, from newborn through 5 years • Milestones — illustrated, age-based CDC checklists from 2 months through 5 years, with reached dates • Growing Up — a visual timeline of age-relevant development, with a storybook avatar and direct links to each stage's play ideas and milestones • Medicine — dosage logging with reminders • Tummy time, bath, and custom activities • Potty training — success and accident tracking DESIGNED FOR TIRED PARENTS • One-handed operation with 60pt touch targets • Nursery Mode — ultra-dim red/black UI for nighttime • Live Activities — see your running timer on the Lock Screen without unlocking • Dynamic Island support • Apple Watch app for wrist-based logging • Siri Shortcuts — "Hey Siri, start sleep tracking" INSIGHTS THAT MATTER • "What Matters Now" card — wake window status, last feed, last diaper at a glance • Personalized nap ranges that adapt to recent sleep history when enough reliable data is available • Daily/weekly/monthly reports with charts • WHO growth percentile curves • Shift Handoff — share a summary with your partner in one tap • Illness Mode — dedicated 24h view with doctor-ready PDF export PRIVACY FIRST • Local-first storage on your device • Optional iCloud sync and co-parent sharing via your Apple iCloud account • Optional Apple Health sync (write-only) • No Lullalog servers • No analytics, no telemetry, no tracking SDKs • No app account required MULTI-CHILD SUPPORT • Track multiple children with easy switching • Import from Huckleberry (CSV) • Share profiles via iCloud or AirDrop WIDGETS & SHORTCUTS • Home Screen and Lock Screen widgets • Control Center controls • Siri Shortcuts for hands-free logging • Action Button support Free. No ads. No paywalls. Just a better baby tracker.

About

Transurf

Features
Read full description

Transurf is a quiet, identity-based habit and journaling app. It is built for people who don't want another streak counter or productivity scoreboard — they want a daily ritual that gently reflects who they are becoming. The idea is simple. Every action you take is a small vote for the type of person you are. Tiny daily acts — making a sentence, taking one breath, walking instead of scrolling — accumulate into the identity you carry. Transurf turns those acts into a calm visualization: two soft curves on screen, your current life and the life you are moving toward, with a single luminous dot drifting between them. THE DAILY RITUAL (under 90 seconds) A short visualization. A handful of taps to mark which small habits you kept. A gentle slider that asks how tightly you are gripping today — because the lifeline shifts through letting go, not pushing. An optional one-sentence reflection. That is it. No streaks. No scores. No fire emojis or warning notifications. Missing a day is fine. The point is gentle drift, not aggressive optimization. WHAT YOU SET UP ONCE On first launch, Transurf asks four quiet questions: - The lifeline you are on now. Not in judgment, just observation. - The person you are becoming. Identity, not outcome. - One scene from that life. A morning. A moment. A picture you can return to. - One to three anchor habits — tiny daily acts the person on your target lifeline would do. Use the formula After [current habit], I will [new tiny habit]. - One to three pendulums — patterns that keep you tied to your current line. THE LIFELINE VISUALIZATION The home screen is a calm full-canvas drawing. Two parallel curving gradient lines: your current life muted and fading, your target life luminous and ahead. A small dot represents you. Each daily check-in nudges the dot. Days where you grip too hard cause the dot to wobble — a small, honest reminder that excess attachment to the goal is itself the obstacle. PRIVATE BY DESIGN Everything you write — your lifelines, your slide, your anchors and pendulums, your check-ins, your reflections — stays on your device using Apple's SwiftData. Transurf has no analytics, no third-party services, no AI calls, no account, no server. If you delete the app, the data goes with it. WHO IT IS FOR - People rebuilding a daily writing or reflection habit - People who have tried streak-based habit apps and bounced off - People drawn to identity-based change (After [current habit], I will...) over goal-based pressure - Anyone who wants a still, quiet, beautifully drawn corner of their phone WHO IT IS NOT FOR - Anyone looking for treatment, therapy, or medical guidance — Transurf is a journaling and reflection tool, not a clinical product - People who love progress bars, scores, and achievement screens — those are intentionally absent A NOTE ON THE NAME Transurf is a play on Reality Transurfing, an idea that you are always on a lifeline that matches your thought energy and that small shifts in attention move you between them. We do not ask you to believe that. We just thought it was a beautiful frame for the very real, very practical work of identity-shaping habits. A morning ritual. A breathing space. A drawing of where you are heading. That is the app.

Screenshots

Lullalog4 screens
Transurf4 screens

Verdict

The call

Lullalog and Transurf are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Lullalog versus Transurf: the parameters behind the verdict, then further details
ParameterLullalogTransurf
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size49 MB2 MB
Age rating4+4+
DeveloperRohank AgarwalJaganathan Konar

In-app purchases

None

Lullalog

No in-app purchases

None

Transurf

No in-app purchases

Questions

Is Lullalog free?
Lullalog is free to download, with no in-app purchases.
Is Transurf free?
Transurf is free to download, with no in-app purchases.
Do Lullalog or Transurf have ads?
Neither Lullalog nor Transurf shows ads.

Other comparisons