# Calorie Diff vs Fuse

The clearest difference is price: Calorie Diff at Free against Fuse's $1.99. Calorie Diff also leads on iOS requirement (13.0 vs 17.0). Fuse's advantage is update cadence (weekly vs fortnightly). On ads, in-app purchases and device support there is nothing between them.

Calorie Diff is free to download; Fuse costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calorie Diff ships an update fortnightly, Fuse weekly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Calorie Diff | Fuse |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calorie-diff/id6444097631/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Paid |
| Size | 28 MB | 18 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reme Le Hane](https://appshunter.io/developer/1652274005) | [Stoprocent](https://appshunter.io/developer/449928740) |

## What reviewers say

### Calorie Diff

[App page](https://appshunter.io/ios/app/calorie-diff/id6444097631)

Easily track your daily calorie balance by viewing active, rest, and dietary intake. See your surplus or deficit at a glance, with optional macro tracking and historical data for the past month.

**Highlights:** Calorie surplus/deficit visualization, Active, Rest, and Dietary calorie tracking, Optional macro tracking (Carbs, Fats, Protein), 7, 14, and 30-day calorie history, Apple Health integration

**In-app purchases:** none


### Fuse

[App page](https://appshunter.io/ios/app/fuse-merge-and-trim-workouts/id6760150004)

Easily manage your workout data by merging split sessions, trimming unwanted parts, and fixing GPS gaps. You can also change activity types and export your data for other platforms.

**Highlights:** Merge multiple workouts, Trim workout duration, Fix GPS gaps by drawing, Change activity type, Preview workout details, Export workouts (FIT/GPX), Upload to Strava/Intervals.icu

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

**In-app purchases:** none


## Frequently asked questions

### Is Calorie Diff free?

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

### Is Fuse free?

Fuse costs $1.99, with no in-app purchases.

### Do Calorie Diff or Fuse have ads?

Neither Calorie Diff nor Fuse shows ads.

### Which is updated more often, Calorie Diff or Fuse?

Calorie Diff ships an update fortnightly, and Fuse weekly. Most recently, Calorie Diff was updated on October 27, 2026 and Fuse on October 31, 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.*