# SwimNow vs Calorimeter

The clearest difference is rating: SwimNow at 4.9 against Calorimeter's 4.1. SwimNow also leads on review sentiment (77% vs 50%) and ratings volume (44 vs 8). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SwimNow sells 2 in-app purchases, starting at $14.99 per year and Calorimeter sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

SwimNow holds the better App Store score, 4.9 against 4.1. That said, the two scores are not equally well evidenced: SwimNow has 44 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 77% of SwimNow's written reviews are positive against 50% of Calorimeter's.

SwimNow ships an update weekly, Calorimeter every 6 days. The most recent releases landed on October 22, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SwimNow | Calorimeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (44 ratings)](https://appshunter.io/ios/app/swimnow-swim-progress-tracker/id6499453699/reviews)** | [4.1 (8 ratings)](https://appshunter.io/ios/app/calorimeter/id6502800890/reviews) |
| Number of ratings | **44** | 8 |
| Positive reviews | **77.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 170 MB | 97 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [阳 邹](https://appshunter.io/developer/1758652914) | [Bogdan Dovgopol](https://appshunter.io/developer/1439732062) |

## What reviewers say

### SwimNow

[App page](https://appshunter.io/ios/app/swimnow-swim-progress-tracker/id6499453699)

This app analyzes and tracks swimming data from your Apple Watch and other synced devices. It offers detailed insights into your performance, advanced split views, and trend charts to help you improve your swimming efficiency and achieve your goals.

**Highlights:** Import structured workouts to Apple Watch, Advanced splits views with more metrics, Data analysis and trend charts, Swimming achievement stickers, Compare two swims, Set personal goals, Yearly and monthly summaries

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $14.99 | per year |
| Lifetime | $39.99 | one-time |


### Calorimeter

[App page](https://appshunter.io/ios/app/calorimeter/id6502800890)

This app helps you monitor daily calorie expenditure and nutrition. It tracks active and resting calories, offers macro logging, and provides insightful graphs. Seamlessly integrates with Apple Health and Fitness for a comprehensive view of your health journey.

**Highlights:** Active calorie tracking, Resting calorie calculation, Total calorie overview, Daily goal setting, Configurable widgets, Macro tracking, Apple Health integration

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Monthly | $2.99 | per month |
| PRO Annually | $19.99 | per year |
| PRO Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is SwimNow free?

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

### Is Calorimeter free?

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

### Which has better reviews, SwimNow or Calorimeter?

SwimNow is rated higher. SwimNow averages 4.9 out of 5 from 44 ratings, while Calorimeter averages 4.1 from 8 ratings.

### Do SwimNow or Calorimeter have ads?

Neither SwimNow nor Calorimeter shows ads.

### Which is updated more often, SwimNow or Calorimeter?

SwimNow ships an update weekly, and Calorimeter every 6 days. Most recently, SwimNow was updated on October 22, 2026 and Calorimeter on October 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.*