Comparison

Hippobrush vs Self Researcher

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

Head to head
About

Hippobrush

Features
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Brush the full two minutes, every time. Hippobrush guides each part of your mouth with a gentle tap, on your iPhone or right from your Apple Watch, and turns brushing into a streak you will want to keep. Most of us stop well before two minutes, the time dentists recommend. Hippobrush keeps time for you, tells you when to move to the next quarter of your mouth, and shows you where you have been. Then floss, rinse, and you are done. FREE FOR EVERYONE - A calm 2-minute brushing timer: four 30-second quadrants with a gentle tap at each change - A live mouth map that fills in as you brush - Apple Watch app: start from your wrist and feel each quadrant change, no phone needed - A daily streak with a freeze for the day life gets in the way, plus achievements - Morning and evening reminders, and a nudge when it is time for a new toothbrush - Home Screen and Lock Screen widgets, watch complications, and a Live Activity on the Dynamic Island - Brushes saved to Apple Health - Brush-buddy challenges: invite a friend and keep each other going - Haptic-only mode for a silent brush - Your first Smile Check HIPPOBRUSH PREMIUM - Floss and rinse timers, so your whole routine lives in one place - Brush to your music: pick a song or playlist, and it pauses when your time is up - Profiles for everyone at home, with Kid Mode: a mascot that reacts as your child brushes, and stickers to collect - A 30-day dentist report as a PDF, ready for your next visit - Your full history and detailed stats (free keeps the last 7 days) - Smart Coach: personal brushing insights and answers from Apple Intelligence, on your device - Unlimited Smile Checks - Mirror mode, custom durations, and custom reminder times SMILE CHECK Take a photo of your smile and get a quick, general look at how your teeth look, with a score you can follow over time and simple brushing tips. Photos are analyzed privately by Apple Intelligence. Smile Check is not a dental exam. Requires iOS 27 and a device that supports Apple Intelligence. PRIVATE BY DESIGN No account needed. Your brushing data stays on your device, and in your own iCloud if you turn on iCloud Backup. We never see it. Anonymous analytics can be turned off in Settings. SUBSCRIPTION Hippobrush is free to use. Hippobrush Premium is available as a yearly subscription, which starts with a 1-week free trial for eligible new subscribers, or as a monthly subscription. Payment is charged to your Apple Account when you confirm the purchase. Subscriptions renew automatically at the same price unless auto-renewal is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the current period ends. You can manage or cancel your subscription in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Privacy Policy: https://boldbiscuit.com/hippobrush/privacy-policy Terms of Use: https://boldbiscuit.com/hippobrush/terms-of-use

About

Self Researcher

Features
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Self Researcher 幫你將 Apple 健康中的資料整理成易懂的趨勢、健康分析與運動回顧。 主要功能 • 查看步數、心率、HRV、睡眠和活動能量等趨勢 • 比較近期紀錄與個人歷史,了解變化的主要依據 • 查看睡眠、恢復狀態和運動強度參考 • 結合訓練紀錄查看心率區間與運動回顧 • 支援使用 Apple 登入、會員訂閱和回復購買項目 • 可選擇 App 提供的 AI 服務,或自行設定支援的 AI 服務商及 API Token;功能與額度以 App 內顯示為準 資料與隱私 讀取健康資料需要你的授權。開始 AI 分析前,App 會說明傳送的資料類別、用途及服務提供者,並取得你的同意。使用 App 提供的 AI 服務時,所選健康摘要會經過我們的伺服器處理並轉交相應 AI 服務;為完成任務和傳回結果,伺服器會加密暫存分析輸入及結果,並依隱私權政策清理。使用自備 Token 時,摘要會傳送至你設定的服務,Token 儲存在系統 Keychain 中。 你可以在 App 內刪除帳號及相關雲端資料。刪除帳號不會自動取消 App Store 訂閱,也不會刪除 Apple 健康中的原始紀錄。 訂閱說明 部分功能需要自動續訂的訂閱,價格、週期及權益以購買頁面顯示為準。你可以在 Apple 帳號中管理或取消訂閱,並在 App 內回復購買項目。 Self Researcher 提供健康與訓練參考資訊,不構成醫療診斷、治療建議或處方。身體年齡及運動強度等分析屬於估計或參考,不能取代專業評估。如有不適,請諮詢專業醫師。 使用條款:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 隱私權政策:https://llistenl.github.io/self-researcher-support/privacy.html

Screenshots

Hippobrush4 screens
Self Researcher4 screens

Verdict

The call

Hippobrush and Self Researcher are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Hippobrush sells 2 in-app purchases, starting at $8.99 per month and Self Researcher sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hippobrush ships an update every 8 days, Self Researcher weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Hippobrush versus Self Researcher: the parameters behind the verdict, then further details
ParameterHippobrushSelf Researcher
PriceFreeFree
Update frequencyEvery 8 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.017.0
Further details — not scored
Size49 MB12 MB
Age rating4+4+
DeveloperTaha Bozdemir思恩 李

In-app purchases

2 purchases

Hippobrush

Subscriptions2
  • Hippobrush Premium Monthly$8.991 Month
  • Hippobrush Premium Yearly7 Days trial$39.991 Year
1 purchases

Self Researcher

Subscriptions1
  • Monthly Premium$0.991 Month

Questions

Is Hippobrush free?
Hippobrush is free to download, with in-app purchases available.
Is Self Researcher free?
Self Researcher is free to download, with in-app purchases available.
Do Hippobrush or Self Researcher have ads?
Neither Hippobrush nor Self Researcher shows ads.
Which is updated more often, Hippobrush or Self Researcher?
Hippobrush ships an update every 8 days, and Self Researcher weekly. Most recently, Hippobrush was updated on October 25, 2026 and Self Researcher on October 31, 2026.

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