Comparison

小鹦轻轻 vs Arc

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

Head to head
About

小鹦轻轻

Features
Read full description

「你不需要变得更轻,只需要更了解自己。」 -只需3步,科学测出你的最低健康体重。 一款用来计算最低健康体重的小工具。 不是为了减重,而是为了理解身体的底线。 「这是身体的底线,不是你的价值。」 「你值得被温柔对待,也包括你自己。」

About

Arc

Track daily routines and build habits with customizable challenges. Integrates with Apple Health for automatic task completion. Offers a free starter challenge and optional Pro features for advanced tracking.

Highlights
  • Customizable challenge lengths (21-90 days)
  • Apple Health auto-tracking integration
  • Strict mode for missed days
  • Finisher card with completion details
  • Home and lock screen widgets
  • No account required for privacy
Features
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Most challenge apps ask you to pay before you've finished week one. Arc doesn't. The 30 Day Reset isn't a trial version. It's the whole thing, all thirty days, free, and it stays free. Pick a challenge, tick your tasks, watch a row of empty boxes fill in one a day. That's the app. No feed, no friends list, no leaderboard, and nothing in here calls you champ. FIVE WAYS TO START 30 Day Reset. Three habits you choose yourself. Free. 66 Day Habit Builder. Three to five habits, and sixty-six days because that's the number the research keeps landing on. 75 Day Classic. Two workouts, a diet, water, reading, a daily photo. 75 Day Gentle. Same seventy-five days with one workout and a bit of air. Custom. Your rules, 21 to 90 days. APPLE HEALTH DOES THE BORING PART Switch on auto-tracking for a task and Arc reads your steps, exercise minutes, outdoor workouts, water and mindful minutes, then ticks it off without being asked. It only ever reads. Nothing gets written back to Health, and none of it leaves your phone. Don't want to grant that? Those tasks stay manual and the rest of the app doesn't care. SEASONS Shared start dates run through the year: Fall Lock-In, Winter Arc, New Year Arc, Spring Reset, Summer Arc. Begin on one and its stamp goes on your finisher card. Starting tomorrow instead is also a perfectly good plan. STRICT MODE, OFF BY DEFAULT Turn it on and a missed day sends you back to Day 1. You get one grace day for the whole run, and once it's gone it's gone. The card at the end looks the same either way. THE FINISHER CARD Reach the end and Arc prints you a card: day count, completion rate, longest streak, and the sentence you wrote on day one about why you started. Square, story, or wide. Save it to Photos or send it straight out. Widgets put the day count and what's left on your home screen and lock screen. The medium one lets you tick things off without opening the app. WHAT ARC WON'T DO No account, so there is no email and no password to lose. Your data sits on your phone and in your own iCloud, and I can't see any of it. No ads. Progress photos stay in Arc on your phone. Nobody checks them, nobody looks at them. FREE, PERMANENTLY The 30 Day Reset in full. One custom challenge. The small widget. Your finished history. Apple Health auto-tracking. ARC PRO Every template, unlimited custom challenges, several running at once, all the widget sizes including the interactive one, and the finisher card in all three shapes. Pay by the month or the year, or buy it once and it's yours. Arc syncs through your own iCloud, so a new phone picks up where the old one stopped. Turn iCloud off and everything still works on the device. Privacy: https://arc.wuyuxai.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

小鹦轻轻4 screens
Arc4 screens

Verdict

The call

The clearest difference is in-app purchases: 小鹦轻轻 at none against Arc's 3. 小鹦轻轻 also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads 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. Arc sells 3 in-app purchases, starting at $2.99 per month. 小鹦轻轻 asks for nothing beyond the download.

UpkeepUpdate frequency

小鹦轻轻 ships an update every 2 weeks, Arc every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 6 level
小鹦轻轻 versus Arc: the parameters behind the verdict, then further details
Parameter小鹦轻轻Arc
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 2 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.6 — better17.0
Further details — not scored
Size2 MB18 MB
Age rating17+4+
Developer蓉 康岚烜 吴

In-app purchases

None

小鹦轻轻

No in-app purchases

3 purchases

Arc

Subscriptions2
  • Arc Pro Monthly$2.991 Month
  • Arc Pro Yearly$19.991 Year
One-time1
  • Arc Pro$29.99

Questions

Is 小鹦轻轻 free?
小鹦轻轻 is free to download, with no in-app purchases.
Is Arc free?
Arc is free to download, with in-app purchases available.
Do 小鹦轻轻 or Arc have ads?
Neither 小鹦轻轻 nor Arc shows ads.
Which is updated more often, 小鹦轻轻 or Arc?
小鹦轻轻 ships an update every 2 weeks, and Arc every 9 days. Most recently, 小鹦轻轻 was updated on October 30, 2026 and Arc on October 31, 2026.

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