Comparison

Artemis vs Hermes+

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

Head to head
About

Artemis

This app uses body temperature to accurately detect ovulation and predict your fertility window and menstrual cycle. It handles irregular cycles and offers detailed visualizations, smart notifications, and secure partner sharing. Your data is stored locally for maximum privacy.

Highlights
  • Temperature-based ovulation detection
  • Cycle predictions that learn your pattern
  • On-device data storage
  • Handles irregular cycles
  • Anomaly awareness
  • Detailed phase visualizations
  • Smart notifications
Features
Read full description

Your cycle deserves better than a calendar guess. Artemis uses your body temperature to detect ovulation through real biphasic shift analysis, the same method used in clinical fertility awareness, powered by intelligent algorithms that improve with every cycle. What you get with Artemis: - Temperature-based ovulation detection, not just date counting - Cycle predictions that learn your unique pattern and tell you when to expect future fertility windows and menstruation periods - Data stored on device, your data stays yours - Handles irregular cycles, missing data, and anovulatory months gracefully - Anomaly awareness: flag sick days, alcohol, travel, or poor sleep - Takes new and historical temperature from any source connected to Apple Health or manual inputs, or operates with no temperature readings at all - Detailed phase visualizations: see the data underlying your cycle analysis - Interactive temperature chart with phase bands and ovulation days - Smart notifications: period predicted, fertile window, ovulation confirmed Partner sharing (free for partners). Share your cycle awareness with a partner through four granular privacy tiers, from phase-only to full temperature detail. You control exactly what they see, and you can change or revoke access instantly. Your partner gets their own view with phase-specific support tips. Your data stays yours. Period. No developer servers. No accounts to create. No tracking pixels. Your health data lives on your device and in your personal iCloud. We never see it, touch it, or sell it. Who Artemis is for: People practicing fertility awareness. People trying to conceive and people trying not to. People who want to understand their body with precision, not approximation. People who refuse to hand their most intimate health data to a corporation. Subscription. Artemis is free to download and includes a 14-day free trial. After the trial, full access as a primary user requires an auto-renewable subscription. Using Artemis as someone's partner is always free. All features listed above are part of the primary-user subscription unless marked otherwise. Payment is charged to your Apple ID account at confirmation of purchase. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage your subscription and turn off auto-renew in your App Store account settings after purchase. Any unused portion of the free trial is forfeited when you purchase a subscription. There is no ad-supported tier and no data monetization. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://artistic-bowl-063.notion.site/Artemis-Privacy-Policy-35da411b631e80d59347f34f24d50c55

About

Hermes+

This fitness app provides personalized workout plans, AI-powered nutrition tracking with photo recognition, and an AI fitness assistant. It also features gamification elements like achievements and leaderboards to keep users motivated.

Highlights
  • Personalized workout plans
  • AI nutrition tracking with photo recognition
  • AI fitness assistant
  • AI-generated meal plans
  • Gamification and community features
  • Structured workout progression
Features
Read full description

Train with a plan, not a guess. Hermes+ builds a training week around your schedule, your equipment and what you need to work around — then adjusts it as you log your sets. - A plan shaped by your days, your kit and your injuries - Photograph your meal and the calories and macros fill themselves in - Macros calculated from your body, not a generic template - An AI coach for anything you're unsure about - 66 ranks, streaks and streak shields to keep you going Hermes+ Pro is an auto-renewable subscription, available weekly, monthly or yearly. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your Apple Account settings. Terms of Use (EULA): https://hermesplus.app/terms.html Privacy Policy: https://hermesplus.app/privacy-policy.html

Screenshots

Artemis4 screens
Hermes+4 screens

Verdict

The call

The clearest difference is monetization model: Hermes+ at free against Artemis's subscription. Hermes+ also leads on iOS requirement (15.0 vs 17.6). Artemis's advantage is update cadence (every 2 days vs every 5 days). 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. Artemis sells 2 in-app purchases, starting at $2.99 per month and Hermes+ sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Artemis ships an update every 2 days, Hermes+ every 5 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Artemis versus Hermes+: the parameters behind the verdict, then further details
ParameterArtemisHermes+
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size8 MB24 MB
Age rating12+4+
DeveloperTaylor HaaffBALINT KENYERES

In-app purchases

2 purchases

Artemis

Subscriptions2
  • Artemis Premium (Monthly)14 Days trial$2.991 Month
  • Artemis Premium (Annual)14 Days trial$29.991 Year
4 purchases

Hermes+

Subscriptions4
  • Hermes+ Pro Weekly$6.997 Days
  • Hermes+ Pro Monthly7 Days trial$14.991 Month
  • Hermes+ Yearly1 Year trial$34.991 Year
Show 1 more
  • Hermes+ Pro Yearly1 Month trial$59.991 Year

Questions

Is Artemis free?
Artemis is free to download, with in-app purchases available.
Is Hermes+ free?
Hermes+ is free to download, with in-app purchases available.
Do Artemis or Hermes+ have ads?
Neither Artemis nor Hermes+ shows ads.
Which is updated more often, Artemis or Hermes+?
Artemis ships an update every 2 days, and Hermes+ every 5 days. Most recently, Artemis was updated on October 31, 2026 and Hermes+ on November 6, 2026.

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