Comparison

Tarn. vs NuanYue

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

Head to head
About

Tarn.

Features
Read full description

A private health journal that puts your privacy first. YOUR DATA, YOUR DEVICE Everything you log stays on your phone. No accounts. No cloud. No servers. Your health data is encrypted with a PIN only you know. SIMPLE TRACKING • Log daily entries with minimal effort • Track patterns over time • View predictions based on your history • Add notes and custom symptoms BUILT FOR PRIVACY • All data encrypted on your device • No internet connection required • No analytics or tracking • Open source - verify our claims yourself SECURE BY DESIGN • PIN protection with automatic data protection • Optional safety PIN for emergencies • Choose your app icon for discretion Whether you're tracking for health awareness, planning purposes, or personal records, Tarn gives you a simple, private way to understand your patterns without compromising your data. No subscriptions. No ads. No data collection. Just a journal that respects your privacy.

About

NuanYue

Features
Read full description

NuanYue is a simple period tracker with a soft pink, Apple-style look. Everyone in the family keeps their own record. [Record in one tap] · Tap once when your period starts and once when it ends; add missed days later, or tap dates directly on the calendar · The Today ring shows the whole cycle at a glance: period, next expected period, fertile window and ovulation day · Log flow, cramps, symptoms, mood and notes [Automatic estimates] · After two recorded periods, your next period and fertile window are estimated from your own recent cycles · Stats: average cycle, average period length, regularity, cycle-length bars and history [For the whole family] · Each person has their own profile; change the name and avatar any time (emoji or a photo) · 8 color themes, light or dark; each person picks their own · Optional 4-digit passcode so family members cannot see your records [TCM intake form] · Tick items on a Traditional Chinese Medicine intake form, item by item as on the original: cold/heat, sweating, pain, appetite and taste, bowel and bladder, sleep, activity and mood, menstruation and discharge, tongue, pattern of onset · Items ticked under "menstruation and discharge" in a daily record can be carried into the form in one tap · Export as a long image or an A4 PDF (full form, or selected items only); selected items are ticked and marked in red as on the original, ready to send to your doctor [Reminders] · A reminder 1–3 days before your period is due, at the time you choose [Privacy] · No sign-up, no internet access, no data collection; all records stay on your phone Note: the app's interface is currently in Simplified Chinese. Estimates are for reference only and must not be used for contraception or as medical advice; the intake form is only a reference for your doctor and is not a diagnosis.

Screenshots

Tarn.4 screens
NuanYue4 screens

Verdict

The call

The clearest difference is iOS requirement: Tarn. at 15.1 against NuanYue's 17.0. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard1 real difference · 5 level
Tarn. versus NuanYue: the parameters behind the verdict, then further details
ParameterTarn.NuanYue
PriceFreeFree
Update frequency—Daily
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size42 MB2 MB
Age rating4+12+
Developersuite 110 llclei bao

In-app purchases

None

Tarn.

No in-app purchases

None

NuanYue

No in-app purchases

Questions

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

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