# Otter Sleep vs Trace

Otter Sleep and Trace are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Otter Sleep sells 10 in-app purchases, starting at $2.99 per 7 days and Trace sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Otter Sleep ships an update every 2 weeks, Trace weekly. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Otter Sleep | Trace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (70 ratings)](https://appshunter.io/ios/app/otter-sleep-sleep-tracker/id6755416816/reviews)** | — |
| Number of ratings | **70** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 146 MB | 39 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Chongqing Cuyi Technology Co., Ltd](https://appshunter.io/developer/1657063984) | [Fuqiang UG (haftungsbeschrankt)](https://appshunter.io/developer/6777274281) |

## What reviewers say

### Otter Sleep

[App page](https://appshunter.io/ios/app/otter-sleep-sleep-tracker/id6755416816)

This app helps you sleep better by analyzing your sleep patterns and recording sounds like snoring and sleep talk. It features a cute companion named Nomi to make bedtime less lonely and offers sleep-inducing music and white noise to help you relax. Improve your sleep habits with personalized insights and a vitality development system.

**Highlights:** Sleep companion with virtual otter, Sleep-inducing music and white noise, Scientific sleep stage analysis, Sleep talk and snore recording, Vitality development system, Apple Health sync

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly subscription | $2.99 | per 7 days |
| weekly subscription | $5.99 | per 7 days |
| weekly subscription | $7.99 | per 7 days |
| monthly subscription | $7.99 | per month |
| monthly subscription | $9.99 | per month |
| yearly subscription | $14.99 | per year |
| yearly subscription | $17.99 | per year |
| yearly subscription | $29.99 | per year |
| yearly subscription | $29.99 | per year |
| yearly subscription | $29.99 | per year |


### Trace

[App page](https://appshunter.io/ios/app/trace-routine-and-progress/id6807049720)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trace Plus Monthly | $4.99 | per month |
| Trace Plus Yearly | $29.99 | per year |


## Frequently asked questions

### Is Otter Sleep free?

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

### Is Trace free?

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

### Do Otter Sleep or Trace have ads?

Neither Otter Sleep nor Trace shows ads.

### Which is updated more often, Otter Sleep or Trace?

Otter Sleep ships an update every 2 weeks, and Trace weekly. Most recently, Otter Sleep was updated on October 18, 2026 and Trace 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.*