# HIIT Interval Timer | Cero vs YourDigitalLift

The clearest difference is in-app purchases: YourDigitalLift at none against HIIT Interval Timer | Cero's 1. YourDigitalLift also leads on ads (none vs shown) and review sentiment (100% vs 75%). HIIT Interval Timer | Cero's advantage is update cadence (every 2 weeks vs monthly). On price and device support there is nothing between them.

Both are free to download. HIIT Interval Timer | Cero sells 1 one-off in-app purchase. YourDigitalLift asks for nothing beyond the download.

HIIT Interval Timer | Cero ships an update every 2 weeks, YourDigitalLift monthly. The most recent releases landed on September 20, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer | Cero | YourDigitalLift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (435 ratings)](https://appshunter.io/ios/app/hiit-interval-timer-cero/id1256319392/reviews)** | — |
| Number of ratings | **435** | — |
| Positive reviews | 74.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 42 MB | 113 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flawless Studio LLC](https://appshunter.io/developer/1228312508) | [Uplyft Innovations Private Limited](https://appshunter.io/developer/1485155244) |

## What reviewers say

### HIIT Interval Timer | Cero

[App page](https://appshunter.io/ios/app/hiit-interval-timer-cero/id1256319392)

This interval timer app enhances various workouts like HIIT, Tabata, and yoga with intuitive design and customizable timer modes. Create and save custom intervals, track calorie expenditure, and sync settings across devices, including Apple Watch.

**Highlights:** Customizable interval timers, Simple and advanced timer modes, Create and save multiple workout settings, Apple Watch compatibility with heart monitor, Automatic calorie tracking to Apple Health, Cross-device sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cero Pro | $3.99 | one-time |

**What reviewers like**

- 👍 Simple and straightforward
- 👍 Very practical and customizable
- 👍 Great for HIIT and Tabata
- 👍 Clear design and easy to use
- 👍 Good value, no subscription

**What reviewers complain about**

- 🔋 Drains battery
- 🎶 Music playback interrupted
- ⚠️ Ads interrupt timers
- 🔊 Weak or non-functional sound/haptics
- 🔄 Forced updates

**Reported bugs**

- App runs in background draining battery
- Rotation broke after update
- Apple workout app overrides Cero app on Apple Watch
- Interval signals too weak or not working

**Requested features**

- Ability to group timers
- Option to add warm-up and cool-down features
- Ability to type numbers for time adjustment
- Timer sounds through headphones or interrupting music
- Ability to change exercise names


### YourDigitalLift

[App page](https://appshunter.io/ios/app/yourdigitallift/id1516471438)

Monitor your workouts, meals, water intake, and daily habits. Receive weekly diet analysis to help you reach your fitness goals. Connect with a community for updates and support.

**Highlights:** Exercise tracking, Diet monitoring, Water intake logging, Habit tracking, Weekly diet analysis, Community feature, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Interval Timer | Cero free?

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

### Is YourDigitalLift free?

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

### Do HIIT Interval Timer | Cero or YourDigitalLift have ads?

HIIT Interval Timer | Cero shows ads; YourDigitalLift does not.

### Which is updated more often, HIIT Interval Timer | Cero or YourDigitalLift?

HIIT Interval Timer | Cero ships an update every 2 weeks, and YourDigitalLift monthly. Most recently, HIIT Interval Timer | Cero was updated on September 20, 2026 and YourDigitalLift on June 7, 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.*