Comparison

Ghost Runner G2 vs Pregnancy Caffeine Tracker

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

Head to head
About

Ghost Runner G2

Read full description

Ghost Runner tracks your GPS route in real-time and projects a ghost pacer from your last lap onto the glasses display. See exactly where you were and push to beat it โ€” lap after lap. -- Requires the Ghost Runner Even Realites companion app & Smart Glasses running on the same phone -- Features: - Live GPS route map on glasses display - Automatic ghost pacer from your previous lap - Real-time stats: pace, distance, lap time, delta - Automatic lap detection with split times - Works fully offline โ€” no WiFi or external server needed - Healthkit integration

About

Pregnancy Caffeine Tracker

Features
Read full description

Caffeine Tap helps you keep a daily caffeine log during pregnancy and breastfeeding. See today's total and how much is left before the daily guide you have chosen. Start by choosing pregnant, breastfeeding, or neither. For pregnancy and breastfeeding, the app sets a guide for your region and shows the organization behind it. Guides vary by country and organization: EFSA uses 200 mg a day, while Health Canada uses 300 mg. You can change your guide. Choose neither to use your own daily guide. Log a drink with one tap using presets, and adjust the caffeine amount for each of up to 12 presets. Record half a cup, one and a half cups, or two cups, set the time you drank it, and edit or undo an entry. Amounts are standard estimates and vary by product and brewing method. Review your 7-day and 30-day averages, days above your guide, and your most logged drinks. Browse daily entries in the calendar. Check today's intake with Home Screen and Lock Screen widgets. The small Home Screen widget logs the drink at the top of your preset list. Use Siri and Shortcuts to log caffeine and check your day. Lock Screen widgets are for viewing only. With watchOS 26 or later, log 1 cup from Control Center, the Smart Stack, or the Action button on Apple Watch. No Watch app needed. Turn on Apple Health in Settings to save the caffeine you log (mg) to Health. Sleep is read only to show two averages side by side: nights after days with late caffeine and other nights. The app does not judge how caffeine affects your sleep. Health data is handled on your device and is never sent anywhere. No account. No ads. Your data stays on your device. The app does not calculate caffeine remaining in your body, predict sleep, or tell you how long to wait before breastfeeding. This app is for recording caffeine and displaying reference amounts, not for diagnosis or treatment. If you have concerns, consult a doctor or midwife.

Screenshots

Ghost Runner G23 screens
Pregnancy Caffeine Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Pregnancy Caffeine Tracker at every 10 days against Ghost Runner G2's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Ghost Runner G2 ships an update every 5 months, Pregnancy Caffeine Tracker every 10 days. Both last shipped on November 5, 2026.

Scorecard1 real difference ยท 5 level
Ghost Runner G2 versus Pregnancy Caffeine Tracker: the parameters behind the verdict, then further details
ParameterGhost Runner G2Pregnancy Caffeine Tracker
PriceFreeFree
Update frequencyEvery 5 monthsEvery 10 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS17.017.0
Further details โ€” not scored
Size5 MB3 MB
Age rating4+4+
DeveloperAtlas Codes LTDZEC Inc.

In-app purchases

None

Ghost Runner G2

No in-app purchases

None

Pregnancy Caffeine Tracker

No in-app purchases

Questions

Is Ghost Runner G2 free?
Ghost Runner G2 is free to download, with no in-app purchases.
Is Pregnancy Caffeine Tracker free?
Pregnancy Caffeine Tracker is free to download, with no in-app purchases.
Do Ghost Runner G2 or Pregnancy Caffeine Tracker have ads?
Neither Ghost Runner G2 nor Pregnancy Caffeine Tracker shows ads.
Which is updated more often, Ghost Runner G2 or Pregnancy Caffeine Tracker?
Ghost Runner G2 ships an update every 5 months, and Pregnancy Caffeine Tracker every 10 days. Most recently, Ghost Runner G2 was updated on November 5, 2026 and Pregnancy Caffeine Tracker on November 5, 2026.

Other comparisons