# Proesis Bio Donor vs Sereniq

The clearest difference is iOS requirement: Sereniq at 15.1 against Proesis Bio Donor's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Proesis Bio Donor ships an update every 2 months, Sereniq every 6 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Proesis Bio Donor | Sereniq |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (16 ratings)](https://appshunter.io/ios/app/proesis-bio-donor/id6446638032/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 117 MB | 46 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Proesis Biologics Inc](https://appshunter.io/developer/1678541028) | [Aferion Technologies, Inc.](https://appshunter.io/developer/6780640121) |

## What reviewers say

### Proesis Bio Donor

[App page](https://appshunter.io/ios/app/proesis-bio-donor/id6446638032)

This app facilitates plasma donation by allowing users to easily sign up, schedule appointments, and manage their rewards. It connects donors with recipients to show the impact of their contributions, aiming for a rewarding and convenient donation experience.

**Highlights:** Donor registration, Appointment scheduling, Rewards management, Connect with recipients, View donation impact, Streamlined collection process

**In-app purchases:** none


### Sereniq

[App page](https://appshunter.io/ios/app/sereniq/id6780640119)

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

**In-app purchases:** none


## Frequently asked questions

### Is Proesis Bio Donor free?

Proesis Bio Donor is free to download, with no in-app purchases.

### Is Sereniq free?

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

### Do Proesis Bio Donor or Sereniq have ads?

Neither Proesis Bio Donor nor Sereniq shows ads.

### Which is updated more often, Proesis Bio Donor or Sereniq?

Proesis Bio Donor ships an update every 2 months, and Sereniq every 6 weeks. Most recently, Proesis Bio Donor was updated on October 27, 2026 and Sereniq on October 28, 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.*