Comparison

ULA Period Tracker vs Pacer

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

Head to head
About

ULA Period Tracker

Features
Read full description

Your cycle should not be a product. Keep it yours with ULA. ULA is the period tracker built on one non-negotiable principle: everything stays on your device. No servers. No cloud. Your data belongs only to you, no one, not even us, can see your information. You've seen what happens when others do. Most period tracking apps have become something else entirely, wellness platforms, advertising engines, data brokers dressed in pink. They offer horoscopes, social feeds, and premium subscriptions, while your most sensitive health information quietly becomes their most valuable asset. Some have faced the legal consequences. Their users faced worse. ULA is the opposite of all that. One thing, done right. ULA tracks your cycle. That's it.  No social features. No ads. No upsells. No account required. Just an intelligent, private tool that learns your unique pattern, including considerations for irregularities like PCOS or PMS, and gives you predictions for your period, fertile windows, and ovulation. All on your iPhone. All offline. Track what actually matters: From bleeding intensity to ovulation pain, mood swings to fatigue, ULA gives you the depth to truly understand your body, without broadcasting it to anyone. Log symptoms, sexual activity, and cycle phases with precision. Edit past entries anytime. Your history is yours, no excuses. Nothing hidden. Nothing leaving your phone: ULA's prediction and business logic is open source. Audit it on GitHub. Verify the architecture yourself. We publish our math because we have nothing to hide and because you deserve to know exactly how your data is handled. Not a promise. Proof. ULA Period Tracker: Privacy. Period.

About

Pacer

This app helps you achieve your daily step goals by tracking your progress in real-time. It intelligently spreads your goal across your active hours, providing immediate feedback on whether you're ahead or behind pace. Receive gentle nudges to stay on track throughout the day.

Highlights
  • Live ahead/behind step count
  • Customizable active hours
  • Watch-face complications
  • Gentle pace nudges
  • Privacy-focused (no data collection)
  • Built for Apple Watch
Features
Read full description

Most step counters tell you you're behind at 10pm. Pacer tells you at 10am. Pacer spreads your daily step goal across your active hours and shows whether you're ahead or behind pace right now, on every glance. A 10,000-step goal isn't a midnight cliff. By 3pm you can know if you're on track. WHAT YOU GET • A live ahead/behind number on your wrist — "+420" or "-180", not a percentage. • Three watch-face complications: rectangular (steps + delta + pace bar), Pacer Steps (circular), and Pacer Delta (circular). • Custom active hours. Active from 10am? Winding down by 6pm? Set it once. • Gentle behind-pace nudges if you slip off pace PRIVACY Pacer collects nothing. HealthKit step counts stay on your watch — no servers, no accounts, no analytics, no third-party SDKs. DESIGNED FOR APPLE WATCH Built with SwiftUI and Swift 6 for smooth, battery-friendly performance. HOW IT WORKS Set a daily goal and an active window (default 9am–8pm). Every minute Pacer computes your on-pace target, a moving line from 0 at your start time to your goal at your end time. The delta between your actual steps and that target is your dashboard, your complication, your nudge. PERFECT FOR • Walkers who want nudges, not alarms • Shift workers with non-standard hours • Anyone trying to get their steps in for the day, every day

Screenshots

ULA Period Tracker4 screens

Verdict

The call

The clearest difference is price: ULA Period Tracker at Free against Pacer's $3.99. Pacer's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 26.0). On update cadence, ads and device support 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

ULA Period Tracker is free to download; Pacer costs $3.99 up front. ULA Period Tracker sells 4 one-off in-app purchases. Pacer asks for nothing beyond the download.

UpkeepUpdate frequency

ULA Period Tracker ships an update every 3 months, Pacer every 2 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
ULA Period Tracker versus Pacer: the parameters behind the verdict, then further details
ParameterULA Period TrackerPacer
PriceFree — better$3.99
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Paid
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch — better
Requires iOS26.013.0 — better
Further details — not scored
Size10 MB2 MB
Age rating12+4+
DeveloperJeronimo Emiliano Ainchil CalahorraAditya Gupta

In-app purchases

4 purchases

ULA Period Tracker

One-time4
  • Small Tip$0.99
  • Medium Tip$2.99
  • Large Tip$3.99
Show 1 more
  • Huge Tip$8.99
None

Pacer

No in-app purchases

Questions

Is ULA Period Tracker free?
ULA Period Tracker is free to download, with in-app purchases available.
Is Pacer free?
Pacer costs $3.99, with no in-app purchases.
Do ULA Period Tracker or Pacer have ads?
Neither ULA Period Tracker nor Pacer shows ads.
Which is updated more often, ULA Period Tracker or Pacer?
ULA Period Tracker ships an update every 3 months, and Pacer every 2 months. Most recently, ULA Period Tracker was updated on November 9, 2026 and Pacer on October 31, 2026.

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