Oky Period Tracker vs Instant Math Cards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oky Period Tracker
This app helps young girls manage their menstrual cycles. It offers personalized predictions, tracks body and mood changes, and provides reliable health information and tips. The goal is to make periods less stressful and empower users.
- Period tracking
- Personalized predictions
- Mood and body tracking
- Health facts and tips
- Stress-free period management
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Oky is a mobile app for girls (age 10+) that helps you to take control of your periods and your lives through a bit of fun! With Oky you can track how your period affects your body and mood so you can get to know you, get personalised predictions so you can plan ahead, and learn the facts with trustworthy information and tips to stay healthy and happy. Download it now and see how Oky can make your periods stress free!
Instant Math Cards
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Instant Math Cards lets you sharpen your math skills anytime, anywhere! With a wide variety of subjects, these cards ensure you'll always be challenged and engaged. Perfect for young aspiring mathematicians, this app offers new levels every month to keep your learning experience fresh and exciting. Our new points system makes math fun and rewarding for any student. Features Include: -Instant level feedback to evaluate strengths and weaknesses -Leaderboards to compete with friends or globally -Daily challenges to give users a fresh daily competition to compete in https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Oky Period Tracker at none against Instant Math Cards's 1. Oky Period Tracker also leads on iOS requirement (15.1 vs 17.5). Instant Math Cards's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads 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
Both are free to download. Instant Math Cards sells 1 one-off in-app purchase. Oky Period Tracker asks for nothing beyond the download.
Oky Period Tracker ships an update every 6 weeks, Instant Math Cards every 3 weeks. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.
| Parameter | Oky Period Tracker | Instant Math Cards |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (47 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 47 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.5 |
| Further details — not scored | ||
| Size | 79 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | UNICEF | Jackson Dow |
In-app purchases
Oky Period Tracker
No in-app purchases
Instant Math Cards
- Premium Features Access$2.99
Questions
Is Oky Period Tracker free?
Is Instant Math Cards free?
Do Oky Period Tracker or Instant Math Cards have ads?
Which is updated more often, Oky Period Tracker or Instant Math Cards?
Other comparisons
