7day. vs Weightly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
7day.
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Your weight changes every single day — after a salty meal, a hard workout, a bad night's sleep. None of those daily swings tell you what's actually happening. Your weekly average does. 7day is a bodyweight tracker built around one idea: the 7-day rolling average is your true weight. Log once a day, and let the weekly average show you what's real. HOW IT WORKS Open the app. Type your weight. Done. The whole thing takes about 3 seconds. Behind that simple log, 7day calculates your weekly average automatically. That's the number you check. That's the number that tells you whether your cut is working, your bulk is on track, or your maintenance is dialed in. PLAN YOUR TRAINING BLOCKS Set a goal: lose 0.5% per week for 12 weeks. Or gain. Or maintain. 7day maps out your target week by week and shows you exactly how your actual weekly average compares to the plan. No guessing, no vibes — just clean data against a clear goal. SEE YOUR REAL PROGRESS The progress chart plots weekly averages over time with your goal line overlaid. You'll see your actual trend — not the random noise of daily fluctuations. Week-by-week breakdowns show your average, entry count, range, and how you're tracking against your block. IMPORT YOUR HISTORY Already tracking weight in a spreadsheet? Import your data via CSV and see your full history inside 7day from day one. BUILT FOR PEOPLE WHO KNOW WHAT THEY'RE DOING 7day is not a calorie counter. It doesn't have motivational quotes, streak badges, or social features. It's a precision tool for people who program their training in blocks, track their macros, and want clean weekly data without the clutter. - Log weight in ~3 seconds - Automatic 7-day rolling averages - Block-based goal planning (cut / bulk / maintain) - Weekly average progress charts with goal overlay - Week-by-week breakdown with color-coded deltas - CSV import and export - Minimal, calm, distraction-free design
Weightly
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Weightly is a private weight tracker for iPhone. Log your weight in seconds, follow a clear trend chart, and check weekly, monthly, and yearly averages—with no account, no ads, and no tracking. SIMPLE WEIGHT TRACKING Record your weight using a fast, focused logging screen. Choose the date and time, add an optional note, and continue with your day. SEE YOUR PROGRESS CLEARLY View your weight history through a clean trend chart with: • 7-day, 30-day, and all-time views • Natural day-to-day weight changes • A clear goal-weight marker • Weekly, monthly, and yearly averages • Comparison with the previous period ONLY THE FEATURES YOU NEED Weightly includes useful tools without turning weight tracking into a complicated fitness program: • Goal-weight progress • Optional local weigh-in reminders • Optional BMI insight • Weight-entry history • Notes for individual entries • Support for Apple Health WORKS WITH APPLE HEALTH Import your existing weight history from Apple Health and optionally save new Weightly entries to Apple Health. Apple Health access is optional, permission-based, and fully under your control. PRIVATE BY DESIGN Your Weightly data is stored locally on your iPhone. • No account • No advertisements • No tracking • No unnecessary personal information • Delete all Weightly data whenever you choose Weightly is designed to feel like a calm private journal—not a diet coach, social network, or complicated health dashboard. BMI is a general estimate based on your saved height and latest weight. It does not measure body composition and is not medical advice.
Screenshots
Verdict
The clearest difference is iOS requirement: Weightly at 17.0 against 7day.'s 26.2. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 7day. | Weightly |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Troxler | Luka Gomzi |
In-app purchases
7day.
No in-app purchases
Weightly
No in-app purchases









