# Impala Kit Verify vs StudyDuo

The clearest difference is in-app purchases: Impala Kit Verify at none against StudyDuo's 2. StudyDuo's advantage is update cadence (every 3 weeks vs every 8 months) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. StudyDuo sells 2 in-app purchases, starting at $4.99 per month. Impala Kit Verify asks for nothing beyond the download.

Impala Kit Verify ships an update every 8 months, StudyDuo every 3 weeks. The most recent releases landed on September 20, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Impala Kit Verify | StudyDuo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/impala-kit-verify/id1073923357/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 52 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Pfizer Inc](https://appshunter.io/developer/400502925) | [Oleh Shapoval](https://appshunter.io/developer/1885768695) |

## What reviewers say

### Impala Kit Verify

[App page](https://appshunter.io/ios/app/impala-kit-verify/id1073923357)

This application helps clinical users quickly and easily verify the correct patient kits before dispensing them to participants in a clinical study. It ensures accuracy and efficiency in the kit selection process.

**Highlights:** Patient kit verification, Clinical study support, Dispensing accuracy, User-friendly interface

**In-app purchases:** none


### StudyDuo

[App page](https://appshunter.io/ios/app/studyduo-focus-timer/id6760692541)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Impala Kit Verify free?

Impala Kit Verify is free to download, with no in-app purchases.

### Is StudyDuo free?

StudyDuo is free to download, with in-app purchases available.

### Do Impala Kit Verify or StudyDuo have ads?

Neither Impala Kit Verify nor StudyDuo shows ads.

### Which is updated more often, Impala Kit Verify or StudyDuo?

Impala Kit Verify ships an update every 8 months, and StudyDuo every 3 weeks. Most recently, Impala Kit Verify was updated on September 20, 2026 and StudyDuo on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*