Period Tracker vs DietaryLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Period Tracker
This app helps users track their menstrual cycles with a unique pixel forest visualization that grows with each cycle. It offers simplified logging, pregnancy mode, and personalized themes, prioritizing user privacy with on-device data storage.
- Living pixel forest visualization
- Smart cycle tracking
- Pregnancy mode
- Simplified logging
- Passcode lock for privacy
- Personalized themes
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Thank you for supporting my commitment to zero data collection. What’s New ● User Request! New Autumn/Winter icons: Switch up your look with cozy seasonal vibes. ● User Request! New charts for cycle length & body temperature: Track cycle regularity and physical changes at a glance. ● User Request! More background & button colors: Added extra lovely, dreamy color options alongside original choices. ● Manual backup support: In addition to original iCloud auto-backup, manual backup is now supported for more flexibility and peace of mind! ● Pregnancy Mode: Embark on a 40-week forest journey with heartwarming weekly quotes for moms-to-be. ● Smart Tracking: Automatically merges spotting into a single cycle for better accuracy. ● Effortless Logging: A simplified workflow—track your status in a single tap. ● Privacy & Style: Secure your data with a Passcode Lock and enjoy our new high-quality pixel icons. Highlights ● Living Pixel Forest: Watch your forest evolve with your cycle, offering comfort and charm. ● Personalized Themes: Choose from a variety of "Soft Creamy" palettes to match your mood. ● Your Data, Your Privacy: No accounts, no servers. Your data stays safely on your device and iCloud. A Note from the Developer As an indie developer, I created this forest to be a quiet sanctuary. Unlike big corporate apps, this is a personal space designed with love and privacy at its heart. Thank you for supporting my work!
DietaryLog
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DietaryLog is a photo-first food diary. Snap a photo to log each meal, let AI estimate calories and macros, and get advice from a built-in AI nutritionist that factors in your recent health trend. Features • Photo logging: camera or library, with an automatic timestamp watermark • AI calorie estimate: one tap to estimate calories and protein / carbs / fat • AI nutritionist: combines your last 7 days from Apple Health (weight, body fat, active energy, steps, workouts, sleep) for trend-aware advice; the AI runs on-device • Body composition: weight / body-fat trend charts • Streaks & levels to help build the habit • Light / dark themes, backup & restore • Privacy-first: your diary stays on your device and only leaves when you choose to share; Health data is read-only, never written Multi-language Traditional Chinese and English — follows your system language or switch manually. Upgrade to Premium to remove ads and support ongoing development. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: DietaryLog at Free against Period Tracker's $2.99. DietaryLog also leads on update cadence (every 3 days vs every 5 weeks). Period Tracker's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement 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
DietaryLog is free to download; Period Tracker costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Period Tracker ships an update every 5 weeks, DietaryLog every 3 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | Period Tracker | DietaryLog |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 47 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Chuang Yi Ting | YU CHIN WANG |
In-app purchases
Period Tracker
No in-app purchases
DietaryLog
No in-app purchases
