Comparison

Birth Timer vs Interval

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

Head to head
About

Birth Timer

Features
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Birth Timer is a deliberately simple contraction timer for pregnant people. One button, one clear stopwatch. Tap when a contraction begins. Tap when it ends. Birth Timer does the math, you focus on breathing. WHAT BIRTH TIMER MEASURES • Live duration of the current contraction • Start-to-start interval, the clinical standard • Average duration and last interval in the History tab • A personal hint when contractions reach the interval your midwife or hospital told you to call at 4:8 BREATHING While a contraction runs, a soft ring breathes around the button on a 4:8 cycle, four seconds inhale, eight seconds exhale. A discreet "Inhale / Exhale" word switches with it. Stay in rhythm without looking down. APPLE WATCH Birth Timer has a matching watch app. Tap right on your wrist without reaching for your phone. The watch shows the same button and the same breathing ring. Even when the watch is briefly out of range, taps are queued and sync as soon as it reconnects. WHEN TO CALL A dedicated info panel lists the signs that need immediate attention, even when contractions haven't reached your call threshold yet: water breaking, heavier bleeding, less baby movement, severe headaches, sudden pain, or simply the feeling that something is wrong. One tap takes you to your contacts. CONTACTS FOR THE MOMENT Birth Timer keeps your most-important numbers a single tap away. Midwife, hospital, partner, emergency. Fill in what you already know. When the moment comes, calling is right there. HOSPITAL BAG A prepared checklist is already in the app. From insurance cards to comfortable slippers to your favorite music speaker. Localized for German, English, Spanish, French, and Portuguese. Every item is editable. LOCAL AND PRIVATE Birth Timer keeps everything on your device. No accounts, no cloud, no tracking, no ads. Your data stays with you. One tap clears it all. WHAT BIRTH TIMER IS NOT Birth Timer is not a medical device and does not provide diagnoses. We measure duration and interval, nothing more. When in doubt, always contact your midwife or hospital. MADE FOR YOU Birth Timer was created because pregnant people deserve a calm, honest companion through labor. No diagnoses, no ads, just a reliable timer at your side.

About

Interval

Features
Read full description

Interval is a fast, focused timer for HIIT, Tabata, EMOM, circuits, boxing rounds and any work/rest training you do. Set your work, rest and rounds — or start from a ready-made preset — and press start. A big, glanceable timer with color-coded phases and audio, voice and haptic cues keeps you on pace without staring at the screen. ON YOUR WRIST • A full Apple Watch app — start and run any of your workouts from your wrist • Live sync — start on iPhone and it opens on your Watch instantly, and the other way around • Pause, skip or end on either device and the other follows along • Haptic cues on every phase change, so you can train without looking BUILT FOR TRAINING • Work, rest and rounds you control, with round rests between sets • Tabata, HIIT and EMOM presets to start from • A clean preview of the whole workout before you begin • Gym circuits, boxing rounds, sprint intervals, stretching, physio sets — anything that runs on a clock STAY LOCKED IN • A large timer with color-coded WORK / REST phases • Two-tier progress: where you are in the round and in the whole workout • Audio beeps and an optional voice cue on every phase change and the last 3 seconds • Haptic feedback so you can train heads-down • Keeps running with the screen locked and in the background LOCK SCREEN & DYNAMIC ISLAND • A Live Activity shows the current phase and countdown on the Lock Screen and in the Dynamic Island YOURS, AND PRIVATE • No account, no sign-up • No tracking, no ads, no data collection — everything stays on your device SIMPLE PRICING Use Interval free for up to 15 workouts with every feature unlocked. A single one-time purchase — Interval Pro — removes the limit forever and unlocks accent themes. No subscription, ever. Questions or feedback? Email interval@klimakov.me

Screenshots

Birth Timer4 screens
Interval4 screens

Verdict

The call

The clearest difference is in-app purchases: Birth Timer at none against Interval's 1. On price, update cadence, ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Interval sells 1 one-off in-app purchase. Birth Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Birth Timer ships an update every 3 weeks, Interval every 10 days. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Birth Timer versus Interval: the parameters behind the verdict, then further details
ParameterBirth TimerInterval
PriceFreeFree
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS17.417.0 — better
Further details — not scored
Size5 MB38 MB
Age rating4+4+
DeveloperMidnite Compile GmbHOLEG KLIMAKOV

In-app purchases

None

Birth Timer

No in-app purchases

1 purchases

Interval

One-time1
  • Interval Pro$6.99

Questions

Is Birth Timer free?
Birth Timer is free to download, with no in-app purchases.
Is Interval free?
Interval is free to download, with in-app purchases available.
Do Birth Timer or Interval have ads?
Neither Birth Timer nor Interval shows ads.
Which is updated more often, Birth Timer or Interval?
Birth Timer ships an update every 3 weeks, and Interval every 10 days. Most recently, Birth Timer was updated on October 10, 2026 and Interval on October 16, 2026.

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