# DietGen vs StudySync

The clearest difference is update cadence: StudySync at fortnightly against DietGen's every 5 weeks. DietGen's advantage is iOS requirement (15.6 vs 18.5). 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.

DietGen ships an update every 5 weeks, StudySync fortnightly. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | DietGen | StudySync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/studysync-snyder-lab/id6756796122/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 82 MB | 43 MB |
| Requires iOS | **15.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Yibin Wang](https://appshunter.io/developer/1851268866) | [Stanford University](https://appshunter.io/developer/292922032) |

## What reviewers say

### DietGen

[App page](https://appshunter.io/ios/app/dietgen/id6754987805)

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

**In-app purchases:** none


### StudySync

[App page](https://appshunter.io/ios/app/studysync-snyder-lab/id6756796122)

This mobile application serves as the companion for a specific research study. Participants must be pre-enrolled to use its features. It is developed by the Snyder Lab at Stanford University.

**Highlights:** Research study participation, Onboarding required, Stanford University developed, Mobile companion app

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

**In-app purchases:** none


## Frequently asked questions

### Is DietGen free?

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

### Is StudySync free?

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

### Do DietGen or StudySync have ads?

Neither DietGen nor StudySync shows ads.

### Which is updated more often, DietGen or StudySync?

DietGen ships an update every 5 weeks, and StudySync fortnightly. Most recently, DietGen was updated on September 19, 2026 and StudySync on September 29, 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.*