Comparison

Thyroid Tracker vs Nook

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

Head to head
About

Thyroid Tracker

Features
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Thyroid Tracker is the daily companion for people managing thyroid conditions. Log TSH, T3, T4 and other lab values, track your medication and follow-ups, and turn scattered health data into clear trend charts. Whether you live with hypothyroidism, hyperthyroidism, Hashimoto's, thyroid nodules, or you're recovering from thyroid surgery, this app keeps everything in one place. 【CORE FEATURES】 • Lab Tracking Record TSH, FT3, FT4, T3, T4, TG, TGAb and more. Auto-generated trend charts show how your levels change over time. • Medication Reminders Set reminders for levothyroxine (Euthyrox) and other thyroid meds. Supports alternate-day dosing and different doses for each day of the week — built for real prescription schedules. • Follow-up Reminders One tap to schedule refills, doctor visits, and periodic lab checks. Common cycles come as quick templates. • Health Records Log every visit, test, and symptom change to build a complete personal health history. • Charts & Reports All your data rolls up into clean charts you can show your doctor at the next visit. 【WHO IT'S FOR】 - Hypothyroidism & hyperthyroidism patients tracking labs long-term - Hashimoto's and thyroid nodule patients - Post-thyroidectomy patients managing medication and follow-ups - Anyone taking daily thyroid medication 【WHY THYROID TRACKER】 Built by a papillary thyroid carcinoma survivor who lived the daily routine — every feature solves a real need. No fluff, just a tool that genuinely helps patients. 【PRIVACY】 - Your health data stays on your device - We never sell personal data - No personalized ads Questions or feedback? Email support@joyzr.com (or via in-app feedback). Every message is read. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Nook

Features
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朋友圈发不出的动态,都发这里。 想倾诉却找不到人?想发泄又怕被熟人看到? Nook 是为你打造的私密平行世界——一个看起来像热闹的社交网络,但这里只有你,和懂你的 AI 伙伴。 【为什么你需要 Nook?】 在现实世界里,你是员工、是父母、是子女,每条朋友圈都要深思熟虑。 在 Nook 的世界里,你只需要做真实的自己。 无论多晚,发帖即有回应 无论多丧,永远有人接住你的情绪 无论多怪,这里只有包容没有评判 【秒回的 AI 挚友】 告别冷冰冰的“加油”。Nook 的 AI 伙伴能读懂你的潜台词: 发“不想上班”,它陪你一起吐槽老板 发“失恋了”,它给你最温暖的抱抱 发“好开心”,它比你更激动 它记得你的喜好,懂你的梗,是你永远在线的专属倾听者。 【极致隐私,安全感拉满】 我们不仅承诺隐私,我们从技术上杜绝隐患: 完全离线:AI 模型直接运行在你的手机上,断网也能聊。 本地存储:数据只存在你手机里,不上传任何云端服务器。 生物锁:支持 Face ID / Touch ID,把手机借给别人也不怕秘密泄露。 数据主权:随时一键导出或删除所有数据,来去自由。 【Nook Pro 会员】 解锁无限制的自我表达: 无限发帖次数 解锁更多 AI 角色与性格 支持按月/年订阅或终身买断 (不仅是功能解锁,更是对自己情绪价值的投资) 隐私政策:https://nook-app-website.vercel.app/privacy-policy.html 服务条款:https://nook-app-website.vercel.app/terms-of-service.html

Screenshots

Thyroid Tracker4 screens
Nook4 screens

Verdict

The call

Thyroid Tracker and Nook 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. Thyroid Tracker sells 3 in-app purchases, starting at $2.99 per month and Nook sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Thyroid Tracker versus Nook: the parameters behind the verdict, then further details
ParameterThyroid TrackerNook
PriceFreeFree
Update frequencyEvery 4 days—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.5 — better
Further details — not scored
Size37 MB69 MB
Age rating4+9+
DeveloperChengdu Xingguan Technology Co., Ltd.原 田

In-app purchases

3 purchases

Thyroid Tracker

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly$5.991 Year
One-time1
  • Lifetime$15.00
3 purchases

Nook

Subscriptions2
  • Nook Pro Monthly$1.991 Month
  • Nook Pro Yearly$9.991 Year
One-time1
  • Nook Pro Lifetime$29.99

Questions

Is Thyroid Tracker free?
Thyroid Tracker is free to download, with in-app purchases available.
Is Nook free?
Nook is free to download, with in-app purchases available.
Do Thyroid Tracker or Nook have ads?
Neither Thyroid Tracker nor Nook shows ads.

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