# IntervalTimer(x) vs Period Tracker

The clearest difference is in-app purchases: IntervalTimer(x) at none against Period Tracker's 4. Period Tracker's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 18.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Period Tracker sells 4 in-app purchases, starting at $3.99 per 7 days. IntervalTimer(x) asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for IntervalTimer(x) against 5.0 for Period Tracker. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

IntervalTimer(x) ships an update every 3 weeks, Period Tracker weekly. The most recent releases landed on November 14, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | IntervalTimer(x) | Period Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/intervaltimerx/id6745199760/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/period-tracker-lunasafe/id6756551120/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 28 MB |
| Requires iOS | 18.1 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ShapeHaven Innovations LLC](https://appshunter.io/developer/1747127977) | [ZENBYTE DIJITAL TEKNOLOJILER LIMITED SIRKETI](https://appshunter.io/developer/1751368688) |

## What reviewers say

### IntervalTimer(x)

[App page](https://appshunter.io/ios/app/intervaltimerx/id6745199760)

This app provides a customizable interval timer for workouts, focus sessions, and breaks. It offers audio cues, visual progress, and tracks workout history locally. Optional body metrics can be entered for calorie estimates, all stored securely on your device.

**Highlights:** Customizable work/rest/sets intervals, Audio cues for transitions, Workout history log, Local calorie estimates, Offline functionality, Siri Shortcuts integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Period Tracker

[App page](https://appshunter.io/ios/app/period-tracker-lunasafe/id6756551120)

A privacy-focused period tracker that keeps all your sensitive health data securely on your device. Log your cycle, add notes, and gain insights without any cloud syncing or data collection.

**Highlights:** On-device storage only, No tracking or third-party sharing, Simple calendar view, Private notes, Cycle pattern insights, Discreet reminders

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Private Period Tracker – Monthly | $6.99 | per month |
| Unlock Everything, Just Once | $24.99 | one-time |
| Lifetime Privacy Access | $39.99 | one-time |


## Frequently asked questions

### Is IntervalTimer(x) free?

IntervalTimer(x) is free to download, with no in-app purchases.

### Is Period Tracker free?

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

### Which has better reviews, IntervalTimer(x) or Period Tracker?

IntervalTimer(x) and Period Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do IntervalTimer(x) or Period Tracker have ads?

Neither IntervalTimer(x) nor Period Tracker shows ads.

### Which is updated more often, IntervalTimer(x) or Period Tracker?

IntervalTimer(x) ships an update every 3 weeks, and Period Tracker weekly. Most recently, IntervalTimer(x) was updated on November 14, 2026 and Period Tracker on November 13, 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.*