Comparison

ovolane® vs PHASES. Cycle Tracker & Diary

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

Head to head
About

ovolane®

This app helps with family planning by accurately tracking fertile days and ovulation using a temperature-based method. It works with a special sensor to record temperature overnight and syncs data via Bluetooth for clear presentation in a calendar and graphs.

Highlights
  • Fertile day determination
  • Ovulation tracking
  • Temperature-based method
  • Bluetooth data sync
  • Calendar and graph visualization
  • Cycle prognostication
  • Note and symptom recording
Features
Read full description

For your successful family planning, the determination of your fertile days is essential. This is accomplished most reliably by the so-called “temperature-method”. Natural - Smart - Comfortable - Safe ... Using the ovolane® app and the ovolane® sensor, this method has just become so convenient and reliable as you would wish. The slim, tampon size, intelligent ovolane® sensor records your temperature progression precisely - while you sleep. After it’s removal, the ovolane® sensor utilizes Bluetooth to automatically send the temperature data to the ovolane® app. From the temperature data, the ovolane® app determines your fertile days, the time of your ovulation and clearly presents both in a calendar, as a monthly graph and a cycle calendar (see screenshots). You can also record brief notes and other activities and symptoms for each day. In addition, based on your past cycles, the ovolane® App prognoses your future cycle, can detect the absence of an ovulation and much more …

About

PHASES. Cycle Tracker & Diary

Read full description

A completely new perspective on your cycle and your everyday life. MORE THAN SYMPTOMS. Most cycle apps only let you track symptoms. PHASES goes further. Focus on what matters most in your everyday life. Not just symptoms, but also what you did and experienced. Sports, nutrition, date nights, family moments, relationship highs and lows, work stress, social events — everything that matters to you. Clearly presented in a unique vertical calendar. FOR MEN, TOO. Why are cycle apps always made just for women? Enter your partner's period and alongside it your own life. Because HER cycle has an impact on YOUR relationship life when it comes to moods and libido. So you know what's going on — for a better mutual understanding. DISCOVER PATTERNS you haven't seen before. When you keep everything in one place, connections become visible. How does your energy change around your ovulation, or your partner's? How do sleep, nutrition, and exercise relate to how you feel? PHASES makes these patterns visible so you can understand yourself better and plan smarter. PRIVACY BY DESIGN. Cycle apps that store data on servers are a no-go. PHASES stores everything exclusively on your device. No account required. No server. No tracking. No third parties. Your entries never leave your smartphone. FEATURES. - Unique vertical calendar - Fully customizable categories and entries - Track your period and receive a forecast - Bleeding isn't the same as your period. You can log both separately - Track ovulation, for example when you've confirmed it with an ovulation test or NFP - Log everything that matters to you: symptoms, mood, energy, sleep, sports, nutrition, social life, relationships and more - 100% on device. No cloud, no tracking - Core features usable without a subscription

Screenshots

ovolane®4 screens
PHASES. Cycle Tracker & Diary4 screens

Verdict

The call

The clearest difference is update cadence: ovolane® at fortnightly against PHASES. Cycle Tracker & Diary's every 2 months. ovolane® also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.2). On price, ads and in-app purchases 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

ovolane® ships an update fortnightly, PHASES. Cycle Tracker & Diary every 2 months. Both last shipped on October 11, 2026.

Scorecard3 real differences · 5 level
ovolane® versus PHASES. Cycle Tracker & Diary: the parameters behind the verdict, then further details
Parameterovolane®PHASES. Cycle Tracker & Diary
PriceFreeFree
Positive reviews44.4% of reviews—
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.2
Further details — not scored
Size12 MB2 MB
Age rating4+4+
Developerbel'apps LLCmyNFP GmbH

In-app purchases

None

ovolane®

No in-app purchases

None

PHASES. Cycle Tracker & Diary

No in-app purchases

Questions

Is ovolane® free?
ovolane® is free to download, with no in-app purchases.
Is PHASES. Cycle Tracker & Diary free?
PHASES. Cycle Tracker & Diary is free to download, with no in-app purchases.
Do ovolane® or PHASES. Cycle Tracker & Diary have ads?
Neither ovolane® nor PHASES. Cycle Tracker & Diary shows ads.
Which is updated more often, ovolane® or PHASES. Cycle Tracker & Diary?
ovolane® ships an update fortnightly, and PHASES. Cycle Tracker & Diary every 2 months. Most recently, ovolane® was updated on October 11, 2026 and PHASES. Cycle Tracker & Diary on October 11, 2026.

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