# Zero vs OutTime

The clearest difference is update cadence: Zero at every 3 days against OutTime's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Zero sells 2 in-app purchases, starting at $9.99 per month and OutTime sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Zero ships an update every 3 days, OutTime weekly. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Zero | OutTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (8 ratings)](https://appshunter.io/ios/app/outtime-clear-aligner-timer/id6762166444/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | — | Freemium |
| Size | 56 MB | 6 MB |
| Requires iOS | **18.1** | 18.4 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [BARTOSZ IDZIK](https://appshunter.io/developer/1838753807) | [Emil Georgiev](https://appshunter.io/developer/1599738519) |

## What reviewers say

### Zero

[App page](https://appshunter.io/ios/app/zero-g-app/id6752305126)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Annual | $79.99 | per year |


### OutTime

[App page](https://appshunter.io/ios/app/outtime-clear-aligner-timer/id6762166444)

This app helps you track your clear aligner wear time by counting down your daily out-time budget. It offers hands-free Siri control, session editing, and keeps all your data private on your device. Pro features include wrist and Lock Screen countdowns, and timelapse videos.

**Highlights:** Countdown out-time budget, Hands-free Siri control, Edit past sessions, Private, on-device data, Apple Watch integration, Lock Screen Live Activities, Retainer mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OutTime Pro | $9.99 | one-time |


## Frequently asked questions

### Is Zero free?

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

### Is OutTime free?

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

### Do Zero or OutTime have ads?

Neither Zero nor OutTime shows ads.

### Which is updated more often, Zero or OutTime?

Zero ships an update every 3 days, and OutTime weekly. Most recently, Zero was updated on October 1, 2026 and OutTime 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.*