Peak vs Arcline
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Peak
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Stop guessing your testosterone. Peak helps you track your testosterone, symptoms, and daily habits - so you can understand whatβs actually affecting your energy, mood, and performance. No more isolated lab results. No more confusion. Just clear, data-driven insight into your body. How it works Each day, Peak combines your data into a clear picture: β’ Testosterone labs β your baseline and trends β’ Symptoms β energy, mood, sleep, recovery β’ Daily patterns β habits that may influence your state Then turns it into something useful: β Whatβs happening β What changed β What might be affecting you What you get Testosterone tracking Log and track your T levels over time. Understand how your numbers change - not just what they are. Daily symptom tracking Quickly log: β’ Energy β’ Mood β’ Sleep β’ Recovery See how you feel - and how it evolves. Trends & patterns Spot connections between: β’ sleep and energy β’ recovery and mood β’ habits and hormone changes Understand your body over time. Clear insights Go beyond raw numbers. Peak helps you: β’ compare results to your baseline β’ detect meaningful changes β’ understand possible drivers No generic advice - just relevant context. Visual tracking See your progress at a glance: β’ daily trends β’ symptom changes β’ performance over time Built for people who want clarity Designed for: β’ men tracking testosterone β’ users on or considering TRT β’ anyone who wants to understand their body better β’ performance-focused individuals Why Peak works Most apps show you data. Peak helps you understand it. Your daily loop 1. Log your symptoms (takes seconds) 2. Track your testosterone 3. See your trends 4. Understand whatβs changing Repeat β gain clarity Understand your body Whether youβre optimizing performance, tracking TRT, or just trying to feel better - Peak helps you connect the dots and make sense of your data. Subscription Peak is a paid app. Usage requires a subscription. β’ Payment is charged to your Apple ID upon purchase confirmation. β’ Manage or cancel anytime in your Apple ID settings. β’ Any unused trial period is forfeited when purchasing a subscription. Terms Under the following terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Arcline
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Arcline is the TRT tracking app built for men who take their hormone therapy seriously. If you're on testosterone replacement therapy, the difference between a good protocol and a great one comes down to data. Not more data β better data. Arcline captures the details that actually matter: when your bloodwork was drawn relative to your last injection, which assay method your lab used, how your symptoms track against your protocol over months. It's the tool you wished you had after your first lab panel came back. WHAT ARCLINE DOES β’ Logs every dose β testosterone, HCG, anastrozole, enclomiphene β with injection site, time, and volume. β’ Captures full bloodwork panels with trough-vs-peak timing on every draw. Enter 20+ markers: Total T, Free T, SHBG, Estradiol, Hematocrit, PSA, full lipid panel, CMP, and more. β’ Flags when your hematocrit, hemoglobin, or PSA crosses clinical thresholds β using the same deterministic rules your endocrinologist uses. β’ Tracks daily symptoms β energy, libido, sleep, mood, morning erections, cognitive clarity, joint comfort β so you can see how your protocol is actually affecting how you feel. β’ Exports a one-page physician-ready PDF summarizing your last three panels, protocol timeline, and symptom trends. Walk into your appointment prepared. WHY ARCLINE Most TRT trackers treat bloodwork as a single number. Arcline treats it as a measurement in context β the hours since your last injection, the assay method your lab used (sensitive vs. standard estradiol, direct vs. calculated free T), and the protocol version it reflects. That's the context your clinician actually needs to interpret a result. Arcline is also honest about what it isn't. It doesn't give medical advice. It doesn't recommend doses. It doesn't use AI to interpret your labs. Every safety banner, every reference range, every pattern callout uses clinical-grade language β because medical content should read like medical content, not like a fitness app. WHO IT'S FOR β’ Men on prescribed TRT for at least three months β’ Patients at clinical TRT practices, urology groups, or endocrinologists β’ Anyone who's tired of spreadsheets, Notes-app logs, and forgetting what their last estradiol was PRIVACY BY DESIGN Your health data stays on your device and in your private iCloud account. Arcline has no accounts, no logins, and no third-party data sharing. Anonymous usage analytics are opt-in. SUBSCRIPTION OPTIONS Arcline is free to try. Premium unlocks unlimited bloodwork panels, trend visualizations, symptom correlation, and PDF export: β’ Annual β $129/year (best value, includes 7-day free trial) β’ Monthly β $19.99/month β’ Lifetime β $149 one-time Terms of use: https://www.arcline.health/terms/ Privacy policy: https://www.arcline.health/privacy/ Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Manage or cancel in Settings > Apple ID > Subscriptions. No refunds for partial periods
Screenshots
Verdict
The clearest difference is ads: Arcline at none against Peak's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Peak sells 2 in-app purchases, starting at $12.99 per month and Arcline sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Peak | Arcline |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | β |
| Ads | Yes | No β better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 26.1 β better | 26.4 |
| Further details β not scored | ||
| Size | 33 MB | 16 MB |
| Age rating | 17+ | 17+ |
| Developer | Adventure Labs d.o.o. | Matthew Zartman |
In-app purchases
Peak
- Unlimited access$12.991 Month
- Unlimited access7 Days trial$44.991 Year
Arcline
- Trough Premium Monthly$19.991 Month
- Trough Premium Annual7 Days trial$129.001 Year
- Premium Lifetime$149.00





