# Longevity Biomarkers vs Steddy

The clearest difference is rating: Steddy at 4.8 against Longevity Biomarkers's 3.9. Steddy also leads on review sentiment (80% vs 50%) and update cadence (every 10 days vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Longevity Biomarkers sells 3 in-app purchases, starting at $6.99 per month and Steddy sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Steddy holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Steddy has 87 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 50% of Longevity Biomarkers's written reviews are positive against 80% of Steddy's.

Longevity Biomarkers ships an update every 3 months, Steddy every 10 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Longevity Biomarkers | Steddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (12 ratings)](https://appshunter.io/ios/app/longevity-biomarkers/id1553911832/reviews) | **[4.8 (87 ratings)](https://appshunter.io/ios/app/steddy-stay-consistent/id1579825538/reviews)** |
| Number of ratings | 12 | **87** |
| Positive reviews | 50.0% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 17 MB | 54 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Longevity Biomarkers LLC](https://appshunter.io/developer/1553911834) | [Light Nudge](https://appshunter.io/developer/1731016560) |

## What reviewers say

### Longevity Biomarkers

[App page](https://appshunter.io/ios/app/longevity-biomarkers/id1553911832)

Understand and manage your health and aging by tracking personalized longevity biomarkers. Discover your biological age and receive insights to optimize your well-being. Integrates with Apple Health for comprehensive tracking.

**Highlights:** Biological age estimation, Personalized longevity biomarkers, Apple Health integration, Test reminders, Health tips and scientific studies, Tracking results over time

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Plan | $6.99 | per month |
| Premium Quarterly Plan | $15.99 | per 3 months |
| Premium Annual Plan | $49.99 | per year |


### Steddy

[App page](https://appshunter.io/ios/app/steddy-stay-consistent/id1579825538)

Plan your week, track your progress, and build healthy habits. This app helps you stay consistent with your goals through activity tracking, notes, and insightful data visualizations.

**Highlights:** Weekly planning, Streak tracking, Activity history, Workout notes, Data visualizations

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Steddy Monthly | $2.99 | per month |
| Steddy Annual | $20.00 | per year |


## Frequently asked questions

### Is Longevity Biomarkers free?

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

### Is Steddy free?

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

### Which has better reviews, Longevity Biomarkers or Steddy?

Steddy is rated higher. Longevity Biomarkers averages 3.9 out of 5 from 12 ratings, while Steddy averages 4.8 from 87 ratings.

### Do Longevity Biomarkers or Steddy have ads?

Neither Longevity Biomarkers nor Steddy shows ads.

### Which is updated more often, Longevity Biomarkers or Steddy?

Longevity Biomarkers ships an update every 3 months, and Steddy every 10 days. Most recently, Longevity Biomarkers was updated on November 3, 2026 and Steddy on November 3, 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.*