# Shift vs OneCal Calorie Tracker

The clearest difference is ads: Shift at none against OneCal Calorie Tracker's shown. OneCal Calorie Tracker's advantage is update cadence (every 9 days vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Shift ships an update every 7 months, OneCal Calorie Tracker every 9 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Shift | OneCal Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 9 days** |
| Size | 3 MB | 5 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kip Builds LLC](https://appshunter.io/developer/1806878200) | [Marcus Spitzmiller](https://appshunter.io/developer/1844961002) |

## What reviewers say

### Shift

[App page](https://appshunter.io/ios/app/shift-calorie-tracker/id6744280443)

**Features:** macOS Compatibility

**In-app purchases:** none


### OneCal Calorie Tracker

[App page](https://appshunter.io/ios/app/onecal-calorie-tracker/id6753773780)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shift free?

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

### Is OneCal Calorie Tracker free?

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

### Do Shift or OneCal Calorie Tracker have ads?

OneCal Calorie Tracker shows ads; Shift does not.

### Which is updated more often, Shift or OneCal Calorie Tracker?

Shift ships an update every 7 months, and OneCal Calorie Tracker every 9 days. Most recently, Shift was updated on October 1, 2026 and OneCal Calorie Tracker 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.*