# 3PhaseFit vs OSTEO

The clearest difference is device support: OSTEO at 3 against 3PhaseFit's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 3PhaseFit sells 1 in-app purchase, starting at $5.00 per month and OSTEO sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 3PhaseFit | OSTEO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (48 ratings)](https://appshunter.io/ios/app/osteo-gains/id6736353653/reviews)** |
| Number of ratings | — | **48** |
| Positive reviews | — | 36.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 8 days |
| Monetization | — | Paid |
| Size | 42 MB | 59 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Maria O'Hara](https://appshunter.io/developer/1749086914) | [OSTEO-GAINS LTD](https://appshunter.io/developer/1771588859) |

## What reviewers say

### 3PhaseFit

[App page](https://appshunter.io/ios/app/3phasefit/id6503355166)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coaching | $5.00 | per month |


### OSTEO

[App page](https://appshunter.io/ios/app/osteo-gains/id6736353653)

This program offers a 52-week exercise plan designed to strengthen bones, particularly for pre-menopausal women. It includes pre-conditioning, stretching, and progressive osteogenic exercises performed at home.

**Highlights:** 52-week bone health program, Pre-conditioning exercises, Stretching routines, Progressive osteogenic exercises, Home-based workouts, Impact tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12-Month Plan | $14.99 | one-time |
| 12-Month Plan | $24.99 | one-time |
| Year Two Plan | $28.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🔬 Research-backed and genuine
- 💪 Great for bone health
- ✨ New updates are great
- 🏃‍♀️ Motivating for exercise

**What reviewers complain about**

- 🐛 Very buggy and glitchy
- ❌ App doesn't work properly
- 💳 Expensive renewal cost
- 🚫 No free trial or sample
- ⚠️ Price not as advertised

**Reported bugs**

- App crashes or won't open
- Login issues (email/account not recognized)
- Purchased app doesn't allow login
- Cannot create a login
- App freezes or doesn't progress

**Requested features**

- Add 'get ready' verbal cues
- Calendar-style progress dashboard
- Verbal instructions for exercises
- Option to skip intro videos
- Countdown feature without volume


## Frequently asked questions

### Is 3PhaseFit free?

3PhaseFit is free to download, with in-app purchases available.

### Is OSTEO free?

OSTEO is free to download, with in-app purchases available.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*