i vs Progressly
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
i
Visualize your body's composition and shape in 3D using data from a body scanner and composition analyzer. Examine fat, muscle, and bone structure layer by layer, and track your physical changes over time with side-by-side 3D comparisons.
- 3D body visualization
- Body composition analysis
- Fat, muscle, and bone reference
- Numerical body size data
- Historical body change comparison
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Progressly
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Progressly is the simplest way to actually SEE your body change over time. Take a progress photo and your last shot appears as a ghost overlay ā so every picture lines up in the same pose, every time. No more guessing the angle. FEATURES ā¢ Ghost overlay camera ā line up front, side and back shots ā¢ Before/After slider ā drag to reveal your change ā¢ Time-lapse ā turn months of photos into one video ā¢ Phases ā organize Cut, Bulk and Maintain ā¢ Weight and day tracking on every photo PRIVATE BY DESIGN ā¢ Your photos never leave your device ā nothing is uploaded ā¢ Lock the app with Face ID ā¢ Nothing is ever deleted behind your back ā¢ No ads, no account, no sign-up ONE-TIME PURCHASE ā NO SUBSCRIPTION Unlock time-lapse export, multiple angles, phase organizing and the home-screen widget with a single purchase, and keep them forever. Start today. Same frame, every week.
Screenshots
Verdict
The clearest difference is in-app purchases: i at none against Progressly's 1. i also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Progressly's advantage is update cadence (every 4 weeks vs every 2 months). On price and ads 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. Progressly sells 1 one-off in-app purchase. i asks for nothing beyond the download.
i ships an update every 2 months, Progressly every 4 weeks. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.
| Parameter | i | Progressly |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | ā |
| Update frequency | Every 2 months | Every 4 weeks ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Monetization | Free | ā |
| Devices | iPhone, iPad, iPod ā better | iPhone |
| Requires iOS | 15.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 265 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | iBODY.,LTD (Tokyo) | Yoshifumi Sato |
In-app purchases
i
No in-app purchases
Progressly
- Unlock everything$4.90
