Comparison

瘦着呢 vs Synstax

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

Head to head
About

瘦着呢

Features
Read full description

减脂这件事,一个人太难,但有人陪就不一样了。 瘦着呢,是专为认真减脂的你打造的 AI 健康管理 App。这里有最懂你的 AI 助手,也有和你一起坚持的减脂队友。 【组队减脂,一起瘦】 邀请好友、闺蜜、男友组成减脂小队。互看体重记录、互相"催"打卡、关键时刻还能发一条"催办"戳一戳对方。减脂路上不再孤单,有人陪才能走得更远。 【AI 瘦瘦助手,24 小时在线】 随时问、随时聊。营养搭配、断食节奏、今天吃多了怎么办……AI 根据你的真实数据给出专属建议,像私人营养师一样贴心。 【拍照识别,记录无压力】 拍一张食物照片,AI 秒速识别热量和营养成分,自动记录进餐数据。再也不用查表、算克重,吃饭记录轻松搞定。 【科学轻断食计划】 16:8、18:6、5:2……选择适合你的断食模式,App 自动追踪进度,灵动岛实时显示断食状态,关键阶段推送鼓励提醒,帮你坚持每一天。 【体重趋势,进步看得见】 每日记录体重,最近 7 天 / 30 天变化曲线清晰呈现,让你直观感受自己的努力和进步,持续保持动力。 【喝水提醒,养成好习惯】 桌面小组件随手记录喝水量,帮你轻松达成每日饮水目标,好状态从补水开始。 【健康仪表盘,一眼看全】 进入 App 第一眼,今日卡路里、断食状态、体重变化、水分摄入全部一屏呈现,清清楚楚知道自己今天的状态。 --- 减脂是一场持久战,但不是一场孤独的战。 下载瘦着呢,带上你最想一起变美的那个人,我们一起瘦。

About

Synstax

This app helps you manage supplement intake by checking for harmful combinations, analyzing food interactions, and tracking dosages. It features an AI-powered label scanner to extract product information and provides smart scheduling for your routine. Get personalized insights and guidance for your wellness journey.

Highlights
  • Supplement combination checker
  • Food and supplement interaction analysis
  • Intake and dosage tracking
  • AI label scanner
  • AI analysis and chat
  • Smart scheduling
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Synstax helps you organize supplement combinations, food effects, dosage, and timing in one place. SUPPLEMENT COMBINATION CHECKER Taking calcium with iron? Zinc with copper? Synstax reviews 5,142 curated combination records and explains timing considerations for each pair. • Insights appear as you add supplements • Clear importance levels and supporting context • Practical guidance on when to separate ingredients FOOD & SUPPLEMENT EFFECTS Recent coffee, tea, dairy, fiber, grapefruit, alcohol, soy, or spicy food can change the timing of a supplement routine. • 196 food–supplement rules • Time-aware notes based on what you logged • Clear waiting guidance when a spacing interval is relevant INTAKE & DOSAGE TRACKING • Track recommended daily intake progress • Compare totals across products that share an ingredient • See upper-limit references and dosage notices AI LABEL SCANNER No barcode or product catalog required. • Photograph a Supplement Facts label • OCR + AI extracts ingredients and amounts • Matches 1,185 ingredient profiles and 12,000+ name variants • Recognizes brand and product names from the front label AI ANALYSIS & CHAT • Review product details, dosage context, and absorption notes • Ask questions about supplements, combinations, and timing • Receive context based on your products, schedule, and diet logs • Free tier: 30 AI queries per month. Pro: unlimited. SMART SCHEDULING • Organize supplements for morning, noon, evening, or bedtime • Build timing around combination and food-effect notes • Track daily intake and streaks BUILT FOR EVERYONE • 34 interface languages • Your records are stored on your device. AI features require internet access and send the relevant data for processing. • No account required Synstax Pro unlocks unlimited AI analysis and premium features. Synstax provides general wellness information and does not diagnose, treat, or replace professional advice. Consult a qualified professional before starting or changing a supplement routine. Terms of Use: https://synstax.uppervoid.app/terms Privacy Policy: https://synstax.uppervoid.app/privacy

Screenshots

瘦着呢4 screens
Synstax4 screens

Verdict

The call

The clearest difference is update cadence: 瘦着呢 at every 8 days against Synstax's every 3 weeks. 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. 瘦着呢 sells 3 in-app purchases, starting at $1.99 per month and Synstax sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

瘦着呢 ships an update every 8 days, Synstax every 3 weeks. Both last shipped on October 31, 2026.

Scorecard1 real difference · 9 level
瘦着呢 versus Synstax: the parameters behind the verdict, then further details
Parameter瘦着呢Synstax
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 8 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS16.6 — better17.0
Further details — not scored
Size7 MB151 MB
Age rating12+12+
Developer雨 李宁 丁

In-app purchases

3 purchases

瘦着呢

Subscriptions2
  • 瘦着呢全能版 · 月度$1.991 Month
  • 瘦着呢全能版 · 年度$12.991 Year
One-time1
  • 瘦着呢全能版 · 月度$7.99
3 purchases

Synstax

Subscriptions2
  • Synstax Pro$4.991 Month
  • Synstax Pro7 Days trial$29.991 Year
One-time1
  • Synstax Pro Lifetime$69.99

Questions

Is 瘦着呢 free?
瘦着呢 is free to download, with in-app purchases available.
Is Synstax free?
Synstax is free to download, with in-app purchases available.
Do 瘦着呢 or Synstax have ads?
Neither 瘦着呢 nor Synstax shows ads.
Which is updated more often, 瘦着呢 or Synstax?
瘦着呢 ships an update every 8 days, and Synstax every 3 weeks. Most recently, 瘦着呢 was updated on October 31, 2026 and Synstax on October 31, 2026.

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