# TEM Guide vs OSLA

The clearest difference is update cadence: OSLA at daily against TEM Guide's every 7 months. TEM Guide's advantage is iOS requirement (12.0 vs 15.0). 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.

TEM Guide ships an update every 7 months, OSLA daily. The most recent releases landed on October 1, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | TEM Guide | OSLA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free | — |
| Size | 17 MB | 19 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Josh Case](https://appshunter.io/developer/1142529891) | [Chun-Huei Liu](https://appshunter.io/developer/1657411874) |

## What reviewers say

### TEM Guide

[App page](https://appshunter.io/ios/app/tem-guide/id1396817192)

This app provides a step-by-step guide for optimizing blood product selection and administration in TEM-directed transfusions. It aims to simplify and standardize the transfusion process for improved patient outcomes.

**Highlights:** Optimized blood product selection, Step-wise administration guide, Standardized transfusion process, Improved patient outcomes, Accessible transfusion guidelines

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

**In-app purchases:** none


### OSLA

[App page](https://appshunter.io/ios/app/osla/id6777434206)

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

**In-app purchases:** none


## Frequently asked questions

### Is TEM Guide free?

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

### Is OSLA free?

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

### Do TEM Guide or OSLA have ads?

Neither TEM Guide nor OSLA shows ads.

### Which is updated more often, TEM Guide or OSLA?

TEM Guide ships an update every 7 months, and OSLA daily. Most recently, TEM Guide was updated on October 1, 2026 and OSLA on September 18, 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.*