Fiat Charting vs Nini
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fiat Charting
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Fiat Charting is a private, on-device app for recording the daily biomarkers used in fertility awareness and natural family planning. Track what you observe each day — cervical mucus characteristics, bleeding, and other signs — using a clear, standardized coding system. Mark your Peak Day, view your full cycle on a familiar chart grid, and keep an organized history you can share with your instructor. FEATURES Daily observation entry with descriptive coding (mucus quality, stretch, frequency) Visual cycle chart with color-coded stamps Peak Day marking and post-Peak count Cycle history and statistics Educational articles on fertility-awareness biomarkers PDF export to share with your instructor Private by design: your data stays on your device and in your personal iCloud ABOUT YOUR DATA Fiat Charting collects no personal data. Your charts are stored on your device and synced only through your own private iCloud account. Nothing is sent to us or any third party. IMPORTANT Fiat Charting is a personal record-keeping tool, not a medical device, and does not provide medical advice or interpret your fertility. To learn a fertility-awareness method and interpret your charts, work with a qualified instructor. This app is independent and is not affiliated with or endorsed by any specific method, organization, or brand.
Nini
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Meet Nini, your gentle cycle companion. Track period days, record symptoms and their intensity, and note how you feel. See estimated cycle phases and useful patterns in your own records, with one of eight illustrated companions alongside you. YOUR RECORDS, YOUR CHOICE Core cycle tracking works without an account. Health records and cycle calculations stay on your device unless you choose a backup or export. Optional backups are encrypted on your device; we cannot read their health-record contents. Keep your recovery information safe. FREE AND NINI PLUS The free version may show an AdMob banner below navigation, subject to privacy choices and eligibility. Monthly and yearly Nini Plus both remove in-app banner ads while your subscription is active. Prices and any eligible trial are shown in the purchase screen before you confirm. Subscriptions renew automatically unless cancelled through your App Store account. Deleting the app or your Nini account does not cancel a store subscription. Restore purchases from the Nini Plus screen. Cycle and fertility estimates are not a diagnosis, medical advice, or contraception. Ask a qualified healthcare professional about medical concerns. Privacy: https://baemtech.github.io/nini-legal/privacy/ Subscription terms: https://baemtech.github.io/nini-legal/terms/ Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Fiat Charting at none against Nini's 2. Fiat Charting also leads on ads (none vs shown). Nini's advantage is iOS requirement (15.0 vs 26.4). On price 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. Nini sells 2 in-app purchases, starting at $4.99 per month. Fiat Charting asks for nothing beyond the download.
| Parameter | Fiat Charting | Nini |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 63 MB |
| Age rating | 17+ | 12+ |
| Developer | Pablo Guzman-Gomez | BATUHAN CAM |
In-app purchases
Fiat Charting
No in-app purchases
Nini
- Nini Plus Monthly7 Days trial$4.991 Month
- Nini Plus Yearly7 Days trial$29.991 Year









