# Cal Track vs Sphere

The clearest difference is update cadence: Sphere at every 2 days against Cal Track's weekly. Cal Track's advantage is iOS requirement (16.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cal Track sells 2 in-app purchases, starting at $5.99 per month and Sphere sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Cal Track ships an update weekly, Sphere every 2 days. Both last shipped on October 15, 2026.

## The numbers

| Metric | Cal Track | Sphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sphere-fast-calorie-tracker/id6759507165/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 68 MB | 44 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ArmusTech LLC](https://appshunter.io/developer/1821489343) | [Upstory](https://appshunter.io/developer/1879111624) |

## What reviewers say

### Cal Track

[App page](https://appshunter.io/ios/app/cal-track-nutritional-tracker/id6747451946)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cal Track Premium Monthly | $5.99 | per month |
| Cal Track Premium Yearly | $29.99 | per year |


### Sphere

[App page](https://appshunter.io/ios/app/sphere-fast-calorie-tracker/id6759507165)

Effortlessly track your food intake with AI-powered photo logging and instant search. Designed for speed and consistency, it helps you achieve your weight loss, muscle building, or maintenance goals.

**Highlights:** AI-powered photo logging, Instant food search, Smart auto-add favorites, Skip days for tracking breaks, Clean daily dashboard, Streak tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Premium Annual | $59.99 | per year |


## Frequently asked questions

### Is Cal Track free?

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

### Is Sphere free?

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

### Do Cal Track or Sphere have ads?

Neither Cal Track nor Sphere shows ads.

### Which is updated more often, Cal Track or Sphere?

Cal Track ships an update weekly, and Sphere every 2 days. Most recently, Cal Track was updated on October 15, 2026 and Sphere on October 15, 2026.

---

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