# Multiplier vs myTSF

The clearest difference is monetization model: myTSF at free against Multiplier's paid. myTSF also leads on rating (5.0 vs 4.6). Multiplier's advantage is update cadence (every 6 months vs every 23 months) and ratings volume (24 vs 3). 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.

myTSF holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Multiplier has 24 ratings behind it against 3, so its average is the more settled of the two.

Multiplier ships an update every 6 months, myTSF every 23 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Multiplier | myTSF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (24 ratings)](https://appshunter.io/ios/app/multiplier/id460335161/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mytsf/id1562854666/reviews)** |
| Number of ratings | **24** | 3 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 23 months |
| Monetization | Paid | **Free** |
| Size | 62 MB | 52 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [Smith & Nephew](https://appshunter.io/developer/549124657) |

## What reviewers say

### Multiplier

[App page](https://appshunter.io/ios/app/multiplier/id460335161)

This app automates complex calculations for predicting mature height, bone length, and limb length discrepancies in children. It simplifies manual methods, reducing calculation time and errors for various orthopedic and growth-related assessments.

**Highlights:** Predict mature height, Calculate bone length, Assess limb length discrepancy, Analyze growth remaining, Plot height on CDC charts, Scanogram calculations, Foot length analysis

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

**In-app purchases:** none


### myTSF

[App page](https://appshunter.io/ios/app/mytsf/id1562854666)

This medical app enables patients to access their prescription for a SMART TSF frame. Users can log adjustments made to the frame and record notes on their treatment progress.

**Highlights:** Download prescription, Record frame adjustments, Log progress notes, Track treatment

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Multiplier free?

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

### Is myTSF free?

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

### Which has better reviews, Multiplier or myTSF?

myTSF is rated higher. Multiplier averages 4.6 out of 5 from 24 ratings, while myTSF averages 5.0 from 3 ratings.

### Do Multiplier or myTSF have ads?

Neither Multiplier nor myTSF shows ads.

### Which is updated more often, Multiplier or myTSF?

Multiplier ships an update every 6 months, and myTSF every 23 months. Most recently, Multiplier was updated on October 15, 2026 and myTSF on October 5, 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.*