marble.fit vs SweatDiary
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
marble.fit
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Marble is a private workout journal for fast logging, focused training, and clear progress. No account, ads, or third-party tracking. WRITE IT YOUR WAY Type or paste a workout in gym notation, bring in multi-day notes, or import a Hevy or Strong CSV. Scan handwritten workouts with on-device text recognition. When available, Apple Intelligence helps structure workout text on your device. Review exercises, sets, weights, reps, dates, rest, and notes before saving. Weights without a unit follow your kg or lb preference. Save an unfinished review and return to it later. Log the same typed workout on another day while keeping same-day duplicate protection. KEEP YOUR TRAINING MOVING - Log weights, reps, distance, time, RPE, rest, and notes - Repeat your last set or use Save + Next - Start and finish workout sessions - Search Workout History by workout or exercise and review a session before repeating it - Build weekly splits and reusable sprint prescriptions - Follow rest timers with a Live Activity and rest-complete alerts SEE YOUR PROGRESS - Track personal records, estimated one-rep max, weekly goals, and consistency - See your Top Exercises and the dates of your best lifts - Review Monthly Reports and Daily Highlights - Explore muscle-group, rep-range, effort, supplement, and calendar views - Record bodyweight or import it from Apple Health - Compare a lift's estimated strength relative to bodyweight - Browse attributed training quotes that fit your text size CONNECT WITH iOS Add a Weekly Goal widget, find exercises in Spotlight, and use Siri or Shortcuts to log sets and manage workout sessions. Open quick logging from supported Control Center, Lock Screen, or Action button controls. OPTIONAL APPLE HEALTH INTEGRATION Import Apple Health workouts, including workouts recorded by Apple Watch and Garmin apps that write to Health. Optionally export completed strength sessions to Apple Health. Health access is permission-based; you can use Marble without it. KEEP CONTROL OF YOUR DATA Your core training data is stored locally on your iPhone or iPad. Export and restore a portable JSON backup. Progress photos and videos stay on your device and are not included in those backup files. Marble has no account system or Marble-operated server. Apple Intelligence features require a compatible device, supported language, and Apple Intelligence availability. Workout notation and structured file imports can be reviewed without Apple Intelligence.
SweatDiary
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Sweat Diary is a fast, distraction-free workout journal for your iPhone and Mac. Log your workouts, jot down notes, and find them later ā no dashboards, no gamification, no clutter. ⢠Log any workout in seconds - gym, running, cycling, rowing, kitesurfing, hiking, or your own custom type ⢠Free-text notes for every entry - capture the details that matter to you ⢠Attach photos to your sessions ⢠See all your activities on a map ⢠Full-text search to find any past workout instantly ⢠Synch between Mac and iPhone via iCloud ⢠Import via HealthKit on iPhone ⢠Weekly activity strip and stats to stay aware without obsessing
Screenshots
Verdict
The clearest difference is update cadence: SweatDiary at every 4 days against marble.fit's fortnightly. SweatDiary also leads on iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
marble.fit ships an update fortnightly, SweatDiary every 4 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.
| Parameter | marble.fit | SweatDiary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 4 days ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, Mac |
| Requires iOS | 26.0 | 18.0 ā better |
| Further details ā not scored | ||
| Size | 10 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Lorenzo Quaid Sison | Christoph Werner |
In-app purchases
marble.fit
No in-app purchases
SweatDiary
No in-app purchases









