Comparison

Pepwise vs half

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

Head to head
About

Pepwise

This app helps researchers organize peptide protocols, perform calculations, manage inventory, and track observations. It offers features for planning research schedules, calculating amounts, and monitoring vial usage. Data is stored privately and can sync via iCloud, with optional integration with Apple Health.

Highlights
  • Organize peptide protocols with schedules
  • Built-in reconstitution and amount calculators
  • Track vial inventory and log usage
  • Review research history and weight trends
  • Optional Apple Health integration
  • Private data storage and iCloud sync
Features
Read full description

Pepwise is a private research companion for organizing peptide protocols, calculations, inventory, and observations in one place. PLAN YOUR RESEARCH Create structured protocols with schedules, amounts, and start dates. Review upcoming entries in a calendar and keep active research easy to follow. CALCULATE WITH CONFIDENCE Use built-in reconstitution and amount calculators to work from the values you provide. Save commonly used peptides and return to prior configurations without rebuilding them each time. TRACK VIAL INVENTORY Record reconstituted vials, log usage, and monitor estimated remaining volume. Pepwise keeps dose logs and vial adjustments connected so your records stay consistent. REVIEW YOUR HISTORY See logged entries by peptide, protocol, or date. Follow weight trends and optionally read or write weight entries through Apple Health with your permission. PRIVATE BY DESIGN Your Pepwise data stays in your private app storage and can sync through your personal iCloud account. Health access is optional and controlled through Apple Health permissions. Pepwise is an organizational and calculation tool for research recordkeeping. It does not provide medical advice, diagnosis, treatment recommendations, or instructions for human use. Verify all calculations and consult qualified professionals where appropriate.

About

half

This app helps you plan your caffeine intake to align with your energy needs and bedtime. Log drinks, preview their effects, and schedule them around your day with optional calendar integration. Track your history and receive timely reminders.

Highlights
  • Log caffeine intake
  • Preview next drink effects
  • Plan caffeine around schedule
  • Track drink history
  • Receive timely reminders
  • Optional Apple Health integration
Features
Read full description

Energy when you need it. Plan your caffeine. Keep your bedtime in mind. half-lyfe helps you log caffeine, preview your next drink and arrange an intended coffee around your day. Its ring shows estimated caffeine in your system and your chosen bedtime target. PREVIEW YOUR NEXT DRINK Pick a drink, portion and time. What-if compares your current estimate with the added drink and shows the projected amount at bedtime. A preview does not write to your drink history. PLAN AROUND YOUR DAY Choose your iPhone calendars or add times manually. Your Day brings your schedule, proposed drink and estimated finish-by time into one timeline. Google calendars appear when synced into Apple Calendar. Calendar access is optional. Local planning runs on your device. Optional AI planning ranks generic time windows after a separate opt-in; on-device checks govern every suggestion. LOG EASILY Tap the ring for your usual, or use Log drink to search the catalog. Supported widgets, Control Center, Shortcuts, Back Tap, Action Button and Apple Watch offer other ways to log. KEEP A USEFUL HISTORY Review your drink logs, tracking streak and self-reported drink effects. Optional Apple Health sleep observations add context for comparing caffeine and sleep. These comparisons do not establish that caffeine caused a sleep change. GET TIMELY REMINDERS Choose planned coffee, finish-by and other reminders. Notifications are optional and editable in Profile. Approving a plan never logs a drink automatically. half-lyfe Pro is an auto-renewing subscription for the currently available tracking, previews, local planning and history features. Eligible yearly subscriptions offer a two-week free trial; a monthly plan is also available. Your local billed price, period, trial eligibility and renewal terms appear before purchase. Payment is charged to your Apple Account. Manage or cancel in Settings > Apple Account > Subscriptions. Restore Purchases restores access, not device-local drink history. Optional coffee-stop planning helps you choose a café and preview walking time. Connect a compatible external agent to share future intended plans and receive drafts for review in half-lyfe. Agent accounts and custom-connector availability depend on the provider. Suggestions never log a consumed drink automatically. Groups and iCloud tracking sync remain unavailable. Terms of Use: https://kadenpriebe.github.io/halflife-site/terms.html Privacy Policy: https://kadenpriebe.github.io/halflife-site/privacy.html Caffeine amounts, finish-by times and bedtime projections are estimates, not measurements or guarantees of sleep or performance. General wellness only, not medical advice. Ages 13-17 have lower intake limits and no energy-drink recommendations; these limits are not an endorsement of teen caffeine use.

Screenshots

Pepwise4 screens
half4 screens

Verdict

The call

The clearest difference is in-app purchases: Pepwise at none against half's 3. Pepwise also leads on ratings volume (4 vs 1). half's advantage is update cadence (every 4 days vs every 9 days). On price, rating, 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

Both are free to download. half sells 3 in-app purchases, starting at $9.99 per month. Pepwise 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 Pepwise against 5.0 for half. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Pepwise ships an update every 9 days, half every 4 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Pepwise versus half: the parameters behind the verdict, then further details
ParameterPepwisehalf
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS18.018.0
Further details — not scored
Size14 MB91 MB
Age rating17+12+
DeveloperWellness Research Supply, LLCKaden Priebe

Customer experience

Pepwise

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

half

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pepwise

No in-app purchases

3 purchases

half

Subscriptions3
  • half-lyfe Pro (Monthly)$9.991 Month
  • half-lyfe Pro (Yearly offer)14 Days trial$19.991 Year
  • half-lyfe Pro (Yearly)14 Days trial$29.991 Year

Questions

Is Pepwise free?
Pepwise is free to download, with no in-app purchases.
Is half free?
half is free to download, with in-app purchases available.
Which has better reviews, Pepwise or half?
Pepwise and half are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Pepwise or half have ads?
Neither Pepwise nor half shows ads.
Which is updated more often, Pepwise or half?
Pepwise ships an update every 9 days, and half every 4 days. Most recently, Pepwise was updated on October 28, 2026 and half on October 29, 2026.

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