Comparison

DoseRhythm vs PepStash

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

Head to head
About

DoseRhythm

Features
Read full description

DoseRhythm: Your Personal Bio-Protocol Companion Take control of your health protocols with DoseRhythm, the all-in-one dosing tracker built for the research compound community. Whether you're managing peptides, hormones (HRT), nootropics, or supplements, DoseRhythm keeps everything organized, on schedule, and completely FREE and completely private. TRACK YOUR PROTOCOLS Create detailed dosing protocols with compound names, dosages, administration routes, and custom cycling schedules. Log each dose with a single tap and see your daily progress at a glance. SMART DOSE CALCULATOR Never second-guess your math again. Built-in calculators handle reconstitution volumes and syringe dosing so you get accurate measurements every time. 200+ COMPOUND KNOWLEDGE BASE Browse the PeptideArc directory — over 200 research compounds across 7 categories including peptides, SARMs, SERMs, hormones & TRT, nootropics, longevity agents, and supplements. Each profile includes mechanisms, dosing guidelines, and research references. INSIGHTS & ADHERENCE Track your 30-day adherence rate, maintain dosing streaks, and review your protocol history. DoseRhythm helps you stay consistent and see the big picture. CYCLING SUPPORT Set up on/off cycling schedules for compounds that require them. DoseRhythm tracks where you are in each cycle automatically. YOUR DATA STAYS YOURS DoseRhythm is offline-first. All your health data is stored locally on your device — nothing is uploaded, shared, or tracked. No account required, no cloud sync, no compromises on privacy. Built by PeptideArc — the trusted resource for research compound education. Disclaimer: DoseRhythm is for informational and educational purposes only. It is not intended to provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting, changing, or stopping any medication or health protocol. Do not make medical decisions based solely on this app.

About

PepStash

Manage your peptide inventory, track costs, and log doses with this personal companion app. It helps calculate concentrations, suggests ideal water amounts, and syncs data across household devices via iCloud for seamless sharing and reminders.

Highlights
  • Peptide inventory management
  • Cost per milligram calculation
  • Reconstitution concentration calculator
  • Dose logging with vial tracking
  • Household data syncing via iCloud
  • Dose reminders and alerts
  • Purity test result linking
Features
Read full description

PepStash is your personal peptide management companion. Track inventory from purchase through reconstitution to dose logging — synced across your household via iCloud. INVENTORY & KITS Add individual vials or purchase kits. See quantities and milligram breakdowns at a glance. Track what you paid per kit and PepStash calculates cost per milligram. Add third-party purity test results with a link to the report. Stock rotation sorting ensures oldest kits are used first. PRICE ANALYTICS Compare cost per milligram across suppliers. Toggle between labeled and tested mg values to see what you actually received versus what you paid for. RECONSTITUTION Enter your bacteriostatic water amount and get your concentration instantly. The built-in calculator suggests ideal water amounts based on your expected dose, highlighting options that land on clean syringe units. DOSE LOGGING Log every dose with peptide name, amount, unit (mg, mcg, IU), and source vial. Active vials automatically track remaining milligrams so you always know what's left. SHARE WITH YOUR PARTNER Invite your spouse or partner via CloudKit sharing. Both of you can manage inventory, reconstitute vials, and log doses from your own devices. Each person's doses are tagged separately. DASHBOARD & REMINDERS Your daily command center shows today's doses, active vial status with color-coded depletion gauges, low inventory alerts, and quick-action buttons. Set recurring dose schedules with reminders so you never miss a dose day. PRIVACY FIRST All data stays on your device and your private iCloud account. No servers, no accounts, no tracking.

Screenshots

DoseRhythm4 screens
PepStash4 screens

Verdict

The call

The clearest difference is update cadence: PepStash at every 3 days against DoseRhythm's every 2 weeks. DoseRhythm's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DoseRhythm ships an update every 2 weeks, PepStash every 3 days. The most recent releases landed on November 9, 2026 and November 1, 2026 respectively.

Scorecard2 real differences · 8 level
DoseRhythm versus PepStash: the parameters behind the verdict, then further details
ParameterDoseRhythmPepStash
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size46 MB3 MB
Age rating17+4+
DeveloperSteve OlsonAaron Voges

In-app purchases

None

DoseRhythm

No in-app purchases

None

PepStash

No in-app purchases

Questions

Is DoseRhythm free?
DoseRhythm is free to download, with no in-app purchases.
Is PepStash free?
PepStash is free to download, with no in-app purchases.
Do DoseRhythm or PepStash have ads?
Neither DoseRhythm nor PepStash shows ads.
Which is updated more often, DoseRhythm or PepStash?
DoseRhythm ships an update every 2 weeks, and PepStash every 3 days. Most recently, DoseRhythm was updated on November 9, 2026 and PepStash on November 1, 2026.

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