# NuStrength Tracker vs MyCircadianApp

The clearest difference is review sentiment: MyCircadianApp at 99% against NuStrength Tracker's 0%. MyCircadianApp also leads on rating (4.9 vs 2.7) and monetization model (free with in-app purchases vs subscription). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. NuStrength Tracker sells 1 in-app purchase, starting at $5.99 per month and MyCircadianApp sells 7 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

MyCircadianApp holds the better App Store score, 4.9 against 2.7. That said, the two scores are not equally well evidenced: MyCircadianApp has 265 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 0% of NuStrength Tracker's written reviews are positive against 99% of MyCircadianApp's.

NuStrength Tracker ships an update fortnightly, MyCircadianApp every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | NuStrength Tracker | MyCircadianApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (6 ratings)](https://appshunter.io/ios/app/nustrength-tracker/id6443536686/reviews) | **[4.9 (265 ratings)](https://appshunter.io/ios/app/mycircadianapp/id6538168795/reviews)** |
| Number of ratings | 6 | **265** |
| Positive reviews | 0.0% of reviews | **98.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 62 MB | 56 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Nustrength Training PTY LTD](https://appshunter.io/developer/1545105676) | [Sarah Kleiner Wellness](https://appshunter.io/developer/1756991836) |

## What reviewers say

### NuStrength Tracker

[App page](https://appshunter.io/ios/app/nustrength-tracker/id6443536686)

This app helps users track macronutrients, daily steps, and metabolic markers to achieve body composition goals. It features a food diary with a barcode scanner, custom recipes, meal plans, and progress photo uploads for accountability.

**Highlights:** Macro and step tracking, Food diary with barcode scanner, Custom recipes and meal plans, Metabolic markers tracker, Progress photo uploads, Weekly progress summaries

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription (1 Month) | $5.99 | per month |


### MyCircadianApp

[App page](https://appshunter.io/ios/app/mycircadianapp/id6538168795)

Optimize your health by tracking sunlight exposure, UV index, and vitamin D synthesis. Log sun sessions, monitor light levels, and receive personalized guidance based on your skin type, weather, and location. Enhance well-being and boost mood by syncing with natural light cycles.

**Highlights:** Sunlight exposure tracking, UV index monitoring, Vitamin D synthesis tracking, Circadian rhythm monitoring, Personalized guidance, Sunrise/sunset compass, Lux meter

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Monthly | $3.99 | per month |
| Yearly | $36.00 | per year |
| Yearly | $36.00 | per year |
| Lifetime | $99.00 | one-time |
| Lifetime | $179.00 | one-time |
| Lifetime | $199.00 | one-time |

**What reviewers like**

- 🌟 Comprehensive features
- 👍 User-friendly interface
- 🌞 Helpful for circadian health
- 📊 Detailed data and tracking
- 🎨 Aesthetically pleasing design

**What reviewers complain about**

- 🔍 Could use more educational content
- 📱 Occasional glitches or bugs reported

**Reported bugs**

- Login screen freezes
- Incompatibility with older devices

**Requested features**

- Ability to manually log sun sessions and vitamin D sources
- Option to view upcoming day's sunrise/sunset times


## Frequently asked questions

### Is NuStrength Tracker free?

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

### Is MyCircadianApp free?

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

### Which has better reviews, NuStrength Tracker or MyCircadianApp?

MyCircadianApp is rated higher. NuStrength Tracker averages 2.7 out of 5 from 6 ratings, while MyCircadianApp averages 4.9 from 265 ratings.

### Do NuStrength Tracker or MyCircadianApp have ads?

Neither NuStrength Tracker nor MyCircadianApp shows ads.

### Which is updated more often, NuStrength Tracker or MyCircadianApp?

NuStrength Tracker ships an update fortnightly, and MyCircadianApp every 4 weeks. Most recently, NuStrength Tracker was updated on October 24, 2026 and MyCircadianApp on October 24, 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.*