# OPTIModel vs FITJO

The clearest difference is update cadence: FITJO at monthly against OPTIModel's every 2 months. OPTIModel's advantage is iOS requirement (8.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OPTIModel ships an update every 2 months, FITJO monthly. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | OPTIModel | FITJO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 16 MB | 102 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [LUMC Leiden](https://appshunter.io/developer/534193927) | [JP Consulting UG (haftungsbeschraenkt)](https://appshunter.io/developer/1605626662) |

## What reviewers say

### OPTIModel

[App page](https://appshunter.io/ios/app/optimodel/id1235461963)

This app assists clinicians in making treatment decisions for patients with long bone metastases. It uses flowcharts to estimate survival and recommend local treatments based on metastasis characteristics.

**Highlights:** Long bone metastasis decision support, Survival estimation flowchart, Local treatment recommendation, Metastasis location and extent analysis, Clinical decision-making aid

**Features:** macOS Compatibility

**In-app purchases:** none


### FITJO

[App page](https://appshunter.io/ios/app/fitjo/id1605626660)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OPTIModel free?

OPTIModel is free to download, with no in-app purchases.

### Is FITJO free?

FITJO is free to download, with no in-app purchases.

### Do OPTIModel or FITJO have ads?

Neither OPTIModel nor FITJO shows ads.

### Which is updated more often, OPTIModel or FITJO?

OPTIModel ships an update every 2 months, and FITJO monthly. Most recently, OPTIModel was updated on June 1, 2026 and FITJO on September 24, 2026.

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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.*