# The Deficit vs Calorithm

The clearest difference is in-app purchases: The Deficit at none against Calorithm's 1. The Deficit also leads on ads (none vs shown). Calorithm's advantage is iOS requirement (13.0 vs 17.5). On price, update cadence and device support there is nothing between them.

Both are free to download. Calorithm sells 1 one-off in-app purchase. The Deficit asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | The Deficit | Calorithm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Size | 34 MB | 48 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [5 LADISLAV HRBACEK](https://appshunter.io/developer/1777421905) | [Shunsuke Maeda](https://appshunter.io/developer/1815285078) |

## What reviewers say

### The Deficit

[App page](https://appshunter.io/ios/app/the-deficit/id6737693570)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Calorithm

[App page](https://appshunter.io/ios/app/calorithm/id6746127712)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Points | $0.99 | one-time |


## Frequently asked questions

### Is The Deficit free?

The Deficit is free to download, with no in-app purchases.

### Is Calorithm free?

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

### Do The Deficit or Calorithm have ads?

Calorithm shows ads; The Deficit does not.

### Which is updated more often, The Deficit or Calorithm?

The Deficit ships an update weekly, and Calorithm weekly. Most recently, The Deficit was updated on October 16, 2026 and Calorithm on October 14, 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.*