PepStak vs My Life Within
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PepStak
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PepStak is the all-in-one peptide tracker: plan your stacks, calculate exact doses, log every injection, and see your active levels in real time. SEE REAL-TIME PEPTIDE LEVELS Know what's actually in your system. PepStak models each peptide's active level from your logged doses and half-life, so you always know where you stand. CALCULATE EXACT DOSES The reconstitution calculator turns vial size, bacteriostatic water, and target dose into exact syringe units — no more napkin math before every injection. STACK MULTIPLE PEPTIDES Build goal-based stacks that group your peptides, schedules, and progress in one place. Track duration, weight intent, and completion as you go. LOG SMARTER INJECTIONS The interactive body map shows your recent injection sites with rotation guidance and best-site suggestions, so you never overuse a spot. STAY CONSISTENT Dose reminders keep you on schedule. Daily check-ins track energy, mood, sleep, appetite, and side effects so you can see how your protocol is really going. TRACK YOUR PROGRESS Progress photos and weight tracking put your results side by side with your protocol history. COMPREHENSIVE PEPTIDE LIBRARY Browse 100+ peptides with detailed profiles, or create custom peptides to match exactly what you're running. SYNC & BACKUP Secure cloud sync keeps your data safe and available across devices. — PepStak is a tracking and organization tool. It does not provide medical advice and does not sell or supply peptides. Always consult a licensed healthcare provider before starting any protocol. Some features require a PepStak Pro subscription. Payment is charged to your Apple ID account; subscriptions renew automatically unless canceled at least 24 hours before the end of the period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
My Life Within
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Some months the question is when it will arrive. Some years it is why it no longer does. And when the doctor asks how long this has been going on, the honest answer is usually "a while — it's hard to say." My Life Within is where you write it down. WHAT IT DOES • Log a day in under ten seconds: bleeding and flow, cramps, sleep, mood, headaches, and the words that matter after forty — hot flushes, night sweats, brain fog, joint pain. • Turn on pregnancy mode and receive weekly messages about your baby, your body and small preparations — worked out from two dates, on this phone. • Add measurements if you want them: weight, waking temperature, discharge. Skip them entirely if you don't. • See your own patterns across months, not one day at a time. • Mark where it hurts on a body map instead of hunting for the word. • Produce one printable page for your appointment: how often, how long, how strong, and how it lines up with your cycle. PREDICTIONS THAT ADMIT WHAT THEY ARE Every forecast comes as a range of days with a confidence level and the reason for it — few cycles logged, high variation, or a steady pattern. No single confident date that your body never agreed to. WHAT IT DOES NOT DO It does not diagnose anything and does not tell you what to do. It shows you what you wrote. What that means is a conversation for you and your doctor. It is not a contraceptive and must not be used as one. WHERE YOUR DATA LIVES On your phone, in an encrypted database, behind a PIN or your fingerprint if you want one. There is no account and no cloud. Your cycle, your symptoms, your notes and your measurements never leave the device — not to us, not to anyone. No advertising, no analytics, no third-party trackers. Three things travel, and only these: if you subscribe, the app asks our server whether that subscription is still active, sending only the receipt identifier the store gave your phone. And if you switch crash reports on — they are off unless you do — a crash sends the type of error and the lines of code that failed, with any text you have written stripped out first. And if you write to support from inside the app, that message travels with the reply address you type — the one thing leaving your phone that points back at you. WHAT YOU PAY Cycle tracking, the calendar, symptoms, reminders and the app lock are free and stay free. The lock is deliberately free: privacy is not an upsell. The encrypted backup is free too: it is the only way back after a lost or broken phone, and the app keeps no copy of your diary anywhere. Pro adds the doctor's report, the body map, the full export, discreet mode, the dark theme, and the reading of your temperature chart. Monthly or yearly — your store shows the price in your own currency, and the first month costs nothing. Cancel any time in the store. Terms of use: https://heppsu.com/my-life-within-terms.html
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Verdict
The clearest difference is iOS requirement: My Life Within at 15.0 against PepStak's 17.6. 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
Both are free to download. PepStak sells 2 in-app purchases, starting at $7.99 per month and My Life Within sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | PepStak | My Life Within |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 59 MB |
| Age rating | 17+ | 12+ |
| Developer | Tempered Labs LLC | Heppsu Consulting Ltd. |
In-app purchases
PepStak
- PepStak Pro Monthly$7.991 Month
- PepStak Pro Yearly7 Days trial$39.991 Year
My Life Within
- My Life Within Pro1 Month trial$2.991 Month
- My Life Within Pro1 Month trial$19.991 Year









