# Thinksulin vs OSLA

The clearest difference is update cadence: OSLA at daily against Thinksulin's every 9 months. OSLA also leads on iOS requirement (15.0 vs 17.2). 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.

Thinksulin ships an update every 9 months, OSLA daily. The most recent releases landed on October 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Thinksulin | OSLA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Daily** |
| Size | 7 MB | 19 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Agency for Clinical Innovation](https://appshunter.io/developer/777216626) | [Chun-Huei Liu](https://appshunter.io/developer/1657411874) |

## What reviewers say

### Thinksulin

[App page](https://appshunter.io/ios/app/thinksulin/id1359457527)

**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 Thinksulin free?

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

### Is OSLA free?

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

### Do Thinksulin or OSLA have ads?

Neither Thinksulin nor OSLA shows ads.

### Which is updated more often, Thinksulin or OSLA?

Thinksulin ships an update every 9 months, and OSLA daily. Most recently, Thinksulin was updated on October 10, 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.*