FormLapse vs KATACHI Workout & Body Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FormLapse
Effortlessly track your body transformation with daily photos that automatically align to create a smooth time-lapse. Build a consistent habit with reminders and view your progress alongside weight trends. All your data stays private on your device.
- Auto-aligned time-lapse creation
- Daily photo habit builder
- Weight logging and trend overlay
- On-device data privacy
- Face blurring for sharing
- Multiple purchase plans
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Take a quick body photo every day and watch your progress turn into a smooth timelapse video. FormLapse auto-aligns position, tilt and scale, so you don't need to line up a ghost overlay or use a tripod. Casual shots are fine. Your photos never leave your iPhone: no network connection, no account. Weight loss, cutting, bulking, getting in shape: changes you can't see in the mirror day to day become obvious when weeks and months of progress pics play back to back. FormLapse makes that as easy as possible. ■ Auto-aligned timelapse ・Automatically corrects the position, tilt and scale of each daily photo ・No need to match an outline when shooting. Just take the photo as usual ・Creates a smooth body transformation timelapse ・Optionally show your weight on the video ■ Before & after ・Slider or side-by-side comparison ・9:16 share card for social media ・Pinch to zoom and fine-tune the position ■ Weight log ・Log your weight right after taking the photo (or later) ・Weight graph to see your trend ・Calendar shows the days you took photos ■ Privacy ・Everything is processed on your device, with no network connection ・No account required ・Face blur for worry-free sharing ■ Stay consistent ・Photo reminders ・Home Screen widget ■ Plans (one-time purchase, no subscription) [Free] ・Timelapse of the last month ・Standard quality [Standard] ・Timelapse of the last 6 months ・Full HD quality ・Save and share before/after images ・Playback speed control ・Brightness evening ・Apple Health integration ・Auto-save [Premium] ・Unlimited timelapse span ・Weight graph overlay ・Fine playback speed control ※ Videos on every plan include a small FormLapse mark. ※ One-time purchase, not a subscription.
KATACHI Workout & Body Tracker
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Numbers and photos, together. KATACHI brings your lifts, body weight and progress photos into one calm, private place, so you can look back on how you’ve changed. LOG IN SECONDS Pick an exercise, enter weight and reps. Or type a line like “Bench Press 135lb 5 reps 3 sets” and it’s read for you. A gentle target from last time is suggested. Running is logged too, by distance or by speed, time and incline. TRACK YOUR BODY Weight and body fat trends, goal weight, and optional import from Apple Health. PROGRESS PHOTOS Take front, side and back photos with a self-timer camera, with your last photo faintly overlaid so every shot lines up. Compare before and after, and export a timelapse. Faces can be pixelated automatically when you share. MONTHLY LOG A one-card recap of your month — training days, volume, weight change — made to share or keep. TOOLS Plate calculator, rest timer with Live Activity, estimated 1RM, weekly volume by body part. UNITS THAT FIT kg or lb, cm or ft/in, km or miles, ml or fl oz — your choice. PRIVATE BY DESIGN Your records and photos stay on your device. No ads, no tracking. Optional Face ID lock and iCloud backup with Pro. FREE, AND PRO WHEN YOU WANT MORE Free to use with the last 10 days visible. KATACHI Pro keeps your full history, with Apple Health import, iCloud backup and shareable Monthly Log cards. Choose a monthly or yearly subscription, or a one-time purchase: pay once, no renewal. KATACHI is a logging tool and does not provide medical advice. ABOUT KATACHI PRO • Monthly and yearly plans are auto-renewing subscriptions. • Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically for the same period unless auto-renew is turned off at least 24 hours before the end of the current period. • Manage or cancel any time in Settings > Apple Account > Subscriptions. • The one-time purchase is paid once and does not renew. Terms of Use (EULA): https://pohoda.jp/en/legal/terms.html Privacy Policy: https://pohoda.jp/en/legal/privacy.html
Screenshots
Verdict
FormLapse and KATACHI Workout & Body 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. FormLapse sells 3 one-off in-app purchases and KATACHI Workout & Body Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | FormLapse | KATACHI Workout & Body Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Shuhei Yamamoto | Keisuke Sugimoto |
In-app purchases
FormLapse
- スタンダード$2.99
- プレミアムへアップグレード$4.99
- プレミアム$7.99
KATACHI Workout & Body Tracker
- KATACHI Pro(月額)$1.991 Month
- KATACHI Pro(年額)$14.991 Year
- Lifetime$24.99
Questions
Is FormLapse free?
Is KATACHI Workout & Body Tracker free?
Do FormLapse or KATACHI Workout & Body Tracker have ads?
Which is updated more often, FormLapse or KATACHI Workout & Body Tracker?
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