# SleepFlow Sleep Tracker vs Interval Timer

The clearest difference is update cadence: SleepFlow Sleep Tracker at daily against Interval Timer's every 3 months. Interval Timer's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

SleepFlow Sleep Tracker ships an update daily, Interval Timer every 3 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SleepFlow Sleep Tracker | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sleepflow-sleep-tracker/id6757989734/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 months |
| Monetization | Free | — |
| Size | 4 MB | 70 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabio Mota](https://appshunter.io/developer/1866114975) | [CODEENSIS LTD](https://appshunter.io/developer/859208704) |

## What reviewers say

### SleepFlow Sleep Tracker

[App page](https://appshunter.io/ios/app/sleepflow-sleep-tracker/id6757989734)

Understand your sleep patterns, build consistent habits, and wake up refreshed. This app offers simple tracking, insightful trends, and personalized goals to improve your sleep quality without complexity. Your data remains private and on your device.

**Highlights:** Sleep tracking and logging, Sleep history and trend visualization, Sleep statistics and deep sleep insights, Daily streak motivation, Smart bedtime and wake-up reminders, Personalized sleep duration goals, Privacy-focused, on-device data storage

**Features:** macOS Compatibility

**In-app purchases:** none


### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-rounds/id6767566948)

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

**In-app purchases:** none


## Frequently asked questions

### Is SleepFlow Sleep Tracker free?

SleepFlow Sleep Tracker is free to download, with no in-app purchases.

### Is Interval Timer free?

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

### Do SleepFlow Sleep Tracker or Interval Timer have ads?

Neither SleepFlow Sleep Tracker nor Interval Timer shows ads.

### Which is updated more often, SleepFlow Sleep Tracker or Interval Timer?

SleepFlow Sleep Tracker ships an update daily, and Interval Timer every 3 months. Most recently, SleepFlow Sleep Tracker was updated on November 9, 2026 and Interval Timer on October 31, 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.*