# Interval Timer vs OOLab True Depth Foot Scanner

The clearest difference is in-app purchases: OOLab True Depth Foot Scanner at none against Interval Timer's 8. OOLab True Depth Foot Scanner also leads on ads (none vs shown). Interval Timer's advantage is update cadence (every 9 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Interval Timer sells 6 in-app purchases, starting at $0.99 per month. OOLab True Depth Foot Scanner asks for nothing beyond the download.

Interval Timer ships an update every 9 days, OOLab True Depth Foot Scanner every 4 months. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Interval Timer | OOLab True Depth Foot Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (19K ratings)](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568/reviews)** | — |
| Number of ratings | **19K** | — |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 143 MB | 47 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [Taika3D Oy](https://appshunter.io/developer/1436462173) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568)

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

**Highlights:** Customizable sets, intervals, and rest times, Runs in background and with screen locked, Music playlist integration, Save settings as templates, Apple Health integration for heart rate, Post workouts to social media

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - 1 Month | $0.99 | per month |
| Premium - 1 Month | $1.99 | per month |
| Plus - 1 Month | $1.99 | per month |
| Premium - 1 Month | $2.99 | per month |
| Plus - 1 Year | $4.99 | per year |
| Premium - 1 Year | $9.99 | per year |

**What reviewers like**

- 🚀 Free version works well
- 👍 Customizable intervals and timers
- 👍 Flexible for different workouts
- 👍 Easy to use and set up
- 👍 Provides visual and audio cues

**What reviewers complain about**

- 🐛 Timer issues (stops, loses time)
- 🔋 Drains battery when used
- 💰 Expensive subscription model
- 📢 Intrusive ads
- 🔒 Incompatible with other apps

**Reported bugs**

- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background

**Requested features**

- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options


### OOLab True Depth Foot Scanner

[App page](https://appshunter.io/ios/app/oolab-true-depth-foot-scanner/id1641881060)

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is OOLab True Depth Foot Scanner free?

OOLab True Depth Foot Scanner is free to download, with no in-app purchases.

### Do Interval Timer or OOLab True Depth Foot Scanner have ads?

Interval Timer shows ads; OOLab True Depth Foot Scanner does not.

### Which is updated more often, Interval Timer or OOLab True Depth Foot Scanner?

Interval Timer ships an update every 9 days, and OOLab True Depth Foot Scanner every 4 months. Most recently, Interval Timer was updated on October 13, 2026 and OOLab True Depth Foot Scanner on September 27, 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.*