Comparison

IntervalTimer(x) vs Period Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

IntervalTimer(x)

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
Read full description

IntervalTimer - Train On Your Terms IntervalTimer is a clean, customizable interval timer built for workouts, focus sessions, and recovery breaks. Set your work duration, rest duration, and number of sets , then let the app keep you on pace with audio cues and a visual progress indicator. Your data stays on your device. IntervalTimer collects no personal data and has no account system. Everything - your workout history, body metrics, timer configurations, and intentions - is stored locally using Apple's SwiftData framework. Nothing leaves your phone. There are no servers, no cloud sync, no analytics pipelines, and no third-party SDKs tracking your behavior. The optional body metrics (weight, height, sex) you enter for calorie estimates are saved only in your device's local storage via UserDefaults. They are never transmitted, never shared, and never used for any purpose beyond the in-app calorie calculation you see on screen. Features: - Fully customizable work/rest/sets intervals - Audio cues for transitions and completion - Workout history log with session details - Calorie estimates based on your local profile - Intentions tracking to reflect on your mindset - Pre-configured templates to get started fast - Siri Shortcuts and Spotlight integration - Works entirely offline - always Disclaimer: Calorie estimates are educational only and not a substitute for medical advice.Consult a healthcare provider before making health decisions.

About

Period Tracker

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
Read full description

LunaSafe – Private Period Tracking That Stays on Your Phone Your period data is deeply personal. It should never leave your device. LunaSafe is a privacy-first period tracker built for women who value control, simplicity, and security. No account required. No cloud sync. No data collection. Everything stays on your phone — always. Why Women Choose LunaSafe Most period apps store your data online. LunaSafe doesn’t. • On-device storage only • No tracking or third-party sharing • No ads • No registration, email, or social login You log your cycle. We don’t log you. Simple & Clear Tracking • Log period start and end dates • Clean, minimal calendar view • Add private notes • Understand your cycle patterns No clutter. No overwhelm. Just clarity. LunaSafe Premium Unlock deeper insights — without sacrificing privacy. • Unlimited cycle history • Advanced trends & summaries • Smart, discreet reminders • Cycle-based self-care tips All insights are processed offline. All data remains on your device. Built for Modern Women LunaSafe is calm, supportive, and easy to use. No complexity. No intrusion. Just you and your cycle — on your terms. Download LunaSafe and track your period with confidence. Private. Secure. In your control. Legal Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lunasafe.pro/privacy

Screenshots

IntervalTimer(x)4 screens
Period Tracker4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 5 level
IntervalTimer(x) versus Period Tracker: the parameters behind the verdict, then further details
ParameterIntervalTimer(x)Period Tracker
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS18.113.0 — better
Further details — not scored
Size9 MB28 MB
Age rating4+4+
DeveloperShapeHaven Innovations LLCZENBYTE DIJITAL TEKNOLOJILER LIMITED SIRKETI

In-app purchases

None

IntervalTimer(x)

No in-app purchases

4 purchases

Period Tracker

Subscriptions2
  • Premium Weekly$3.997 Days
  • Private Period Tracker – Monthly$6.991 Month
One-time2
  • Unlock Everything, Just Once$24.99
  • Lifetime Privacy Access$39.99

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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