# Autus vs Viora

The clearest difference is iOS requirement: Autus at 16.4 against Viora's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Autus sells 5 in-app purchases, starting at $3.99 per 7 days and Viora sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Autus ships an update fortnightly, Viora weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Autus | Viora |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/autus-peptide-protocol-log/id6760210994/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Freemium | — |
| Size | 100 MB | 27 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Derek Rodriguez](https://appshunter.io/developer/1883239352) | [Stefan Pihlanen](https://appshunter.io/developer/1821381811) |

## What reviewers say

### Autus

[App page](https://appshunter.io/ios/app/autus-peptide-protocol-log/id6760210994)

This app helps you meticulously plan and track peptide protocols, log individual doses, and calculate vial math. Visualize projected blood-level curves and manage your supplies all in one private, secure location.

**Highlights:** Plan peptide protocols, Log doses and track supplies, Calculate vial reconstitution math, Visualize projected blood-level curves, Organize protocols into stacks, Review history and adherence

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $9.99 | per month |
| Quarterly | $9.99 | per 3 months |
| Yearly | $39.99 | per year |
| Lifetime | $99.99 | one-time |


### Viora

[App page](https://appshunter.io/ios/app/viora-peptide-and-dose-tracker/id6760582814)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Viora Pro Monthly | $8.99 | per month |
| Viora Pro Yearly | $59.99 | per year |


## Frequently asked questions

### Is Autus free?

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

### Is Viora free?

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

### Do Autus or Viora have ads?

Neither Autus nor Viora shows ads.

### Which is updated more often, Autus or Viora?

Autus ships an update fortnightly, and Viora weekly. Most recently, Autus was updated on October 31, 2026 and Viora on October 31, 2026.

---

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