SRI Acne vs Period Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SRI Acne
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One will take photos and answer questions for our algorithms to process and detect acne. The information being collected, is solely for the purpose of our team to help treat and identify leading causes and types of acne. Users will be able to take pictures and learn about what they are suffering from. We do not disclose any user’s information to any third parties or anyone not intended to have access to this data. We will retain the data and only share within our data storage database. If a user affirmatively revokes consent for our collection, use or disclosure of his or her device data, we, and any contracted third party will promptly cease all such use
Period Tracker
This app helps you understand your body's natural rhythm by predicting your cycle and optimizing your life around your hormones. It allows you to log flow levels, mood changes, and symptoms, offering insights into patterns and trends.
- Predict cycle and fertile window
- Log flow levels and mood changes
- Track symptoms like cramps and fatigue
- 5-phase cycle visualization
- Smart predictions based on history
- Color-coded calendar
- Detailed cycle statistics
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Understand your body's natural rhythm. Period Tracker helps you predict your cycle and optimize your life around your hormones. FEATURES: • Log flow levels: light, moderate, heavy • Track mood changes throughout your cycle • Record symptoms: cramps, bloating, fatigue, and more • 5-phase cycle visualization: Menstruation, Follicular, Fertile Window, Ovulation, Luteal • Smart predictions based on your history • Color-coded calendar for easy pattern recognition • Detailed cycle statistics and averages INSIGHTS & TRENDS: • See your average cycle length • Identify symptom patterns by phase • Track mood shifts across your cycle • Predict your next period and fertile window PRIVACY FIRST: All data is stored locally on your device. No accounts required. No cloud sync. No one sees your data but you. Period Tracker is free and ad-supported. Download now and start understanding your cycle today.
Screenshots
Verdict
The clearest difference is iOS requirement: SRI Acne at 11.0 against Period Tracker's 15.1. On price 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | SRI Acne | Period Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (18 ratings) — better |
| Number of ratings | — | 18 — better |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 63 MB | 26 MB |
| Age rating | 12+ | 4+ |
| Developer | Skin Research Institute | Blas Prieto |
In-app purchases
SRI Acne
No in-app purchases
Period Tracker
No in-app purchases









