AteIt! vs Caffeine Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AteIt!
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食べたものを写真で記録する、シンプルな食事日記アプリ。 カメラで撮ってタップするだけ。面倒な栄養計算や食品データベースの検索は不要です。カレンダーに並ぶ食事の写真を見返すだけで、自分の食生活が一目でわかります。 主な機能: - カレンダー表示(月/週切り替え)で食事を一覧 - 写真撮影またはライブラリから簡単に記録 - 絵文字とメモで気分や内容をひとこと添えられる - お酒・お菓子・運動タグでカレンダーにアイコン表示 - データ画面で記録の統計・月別グラフを確認 - 食事記録リマインダー(記録がない日だけ通知) - 体重記録とグラフ表示(オプション) - 体重記録リマインダー通知 - ダークモード対応 無料で1日4件まで記録可能。広告は表示されません。 【Premium プラン】 - 1日20件まで記録可能 - 過去の指定した日付にも記録可能 - 記録データをクラウドに保存 - 複数端末で同期可能 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー: https://koboji.github.io/ateit_pages/
Caffeine Tracker
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How much caffeine is actually in your body right now? Coffy answers that with a live half-life curve — not a list of cups you drank and forgot about. WATCH IT LEAVE YOUR SYSTEM Every drink you log is plotted on a real metabolic curve. Coffy shows the milligrams still active in your body at this moment, and tunes the half-life to your own sensitivity: 4, 5 or 7 hours. YOUR CUT-OFF TIME Set your bedtime and Coffy works out the last safe cup of the day — the point after which you would still be above the 50 mg sleep threshold when your head hits the pillow. It also projects how many mg you will have left at bedtime, before you pour the next one. TAPER INSTEAD OF QUITTING COLD TURKEY Pick a starting point and a goal, and Coffy builds a weekly taper plan — around 50 mg less each week — then tracks you against this week's target. Cut back without the headaches. Pause or adjust the pace whenever life gets in the way. NUMBERS YOU CAN ACTUALLY TRUST Caffeine values come from USDA FoodData Central, the FDA and peer-reviewed studies, and every drink shows you its source. Espresso, americano, latte, cappuccino, cortado, macchiato, mocha, matcha, tea, cola and energy drinks are built in — add your own for anything else. WATER TOO Track glasses of water alongside your caffeine, with gentle reminders through the day. HISTORY THAT MEANS SOMETHING Week, month and year views, your daily average, how it compares with the period before, and how many days you went over your limit. Day streaks and badges for days under your limit and nights with no late cup. REMINDERS THAT RESPECT YOUR SLEEP A cut-off alert, water reminders and an evening check-in — each one switchable. APPLE HEALTH & CSV Sync your caffeine intake to Apple Health, and export everything to CSV whenever you want it. Coffy is not trying to make you quit. It is here so you can time it right: full energy when you need it, clean sleep when you want it. Payment & Subscription Information: - Payment is charged to your Apple Account at confirmation of purchase. - Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. - Your account is charged for renewal within 24 hours prior to the end of the current period. - You can manage your subscriptions and turn off auto-renewal in your account settings after purchase. - No refund is provided for the unused portion of a subscription. Privacy Policy: https://desing304.github.io/caffeine-tracker-legal/privacy.html Terms of Use: https://desing304.github.io/caffeine-tracker-legal/termsofuse.html
Screenshots
Verdict
AteIt! and Caffeine Tracker 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
Both are free to download. AteIt! sells 2 in-app purchases, starting at $0.49 per month and Caffeine Tracker sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
AteIt! ships an update every 2 weeks, Caffeine Tracker weekly. The most recent releases landed on September 12, 2026 and September 11, 2026 respectively.
| Parameter | AteIt! | Caffeine Tracker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 10 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | koji yanagida | EMIR YAVCIN |
In-app purchases
AteIt!
- Premium(月額)$0.491 Month
- Premium(年額)$5.991 Year
Caffeine Tracker
- Premium Weekly$3.997 Days
- Premium Yearly3 Days trial$24.991 Year
- Lifetime Premium$39.99









