75 Days vs MoonVault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
75 Days
This app helps you track your progress through a 75-day challenge with customizable habits and proof photos. Choose from various challenge levels to build sustainable routines and visualize your transformation.
- Customizable 75-day challenges
- Habit tracking with proof photos
- Streak visualization
- Home screen widgets
- Private progress photo gallery
- Daily reminders and streak protection
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The 75 day challenge made for women. Pick your level: gentle reset or full discipline, and build the routine to become the best version of yourself. Track every habit with proof photos, watch your streak grow, and see your transformation day by day. — CHOOSE YOUR HARD — Some Examples: • 75 Days: made for women, by women • 75 Strict: the original, no compromises • 75 Medium: disciplined, but realistic for those with very busy lives • 75 Soft: gentle reset, sustainable habits • Better Me: habits that actually stick — DAILY MISSIONS — Workouts, water, reading, clean eating, no alcohol, daily progress photo: each challenge ships with smart defaults you can fully customise. Add your own habits. Swap the ones that aren't yours. — PROOF, NOT PROMISES — Tap a habit to mark it done and capture a quick proof photo. Your camera roll becomes a visual streak: receipts you can scroll back through on day 75. — BEAUTIFUL HOME SCREEN — Sticky-note widget pinned to your lock screen and home screen see today's tasks at a glance, tap to check them off without opening the app. Pair it with our custom wallpapers for a phone that actually feels like yours. — PROGRESS PHOTOS — A private, time-lapsed gallery of your transformation. Day 1 to Day 75, side by side. — SOFT, FEMININE, FOCUSED — No drill-sergeant energy. Just a calm, beautiful space to show up for yourself daily built with beautiful typography, sticky-note tasks, and pastel polaroids. — BUILT TO LAST 75 DAYS — Streak protection, daily reminders, calendar view, missed-day recovery designed so the challenge ends with you stronger, not burnt out. — MAKE IT YOURS — Pick a profile photo for your Today screen. Generate a home-screen wallpaper from a curated gradient library, our editorial photos, or your own camera roll — choose where the text sits, toggle a soft blur, and overlay your daily tasks if you want them visible from the lock screen. Match your widget background to your aesthetic with light or dark text. — REMINDERS THAT DON'T NAG — Three soft check-ins a day: morning, midday, evening. Edit the times, write a custom message, or turn slots off. Notifications are generated on your device — never sent through a server. — FRIENDS — Add your girlies, see their progress, and cheer each other through the 75. This isn't another habit app. It's a 75-day commitment to the girl you're becoming. Plans: • 75 Weekly — 1 week, auto-renews • 75 Monthly — 1 month, auto-renews • 75 Yearly — 1 year, auto-renews • 75 Lifetime — one-time purchase, yours forever Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Privacy: https://75daychallenge.com/privacy Terms: https://75daychallenge.com/terms
MoonVault
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MoonVault is a privacy-first period diary designed for calm, local cycle tracking. No account is required. There are no ads. There is no third-party tracking. Your basic tracking stays on your device by default, and optional cloud backup can be turned on for your account when you want it. With MoonVault you can: - Log period start and end dates. - Track flow level, symptoms, mood, and private notes. - See logged and estimated days on a clean calendar. - Follow local insights such as average cycle and period length. - Receive gentle morning, noon, and evening support messages. - Use safe self-care cards without exposing sensitive details. MoonVault does not provide medical advice, diagnosis, treatment, contraception, or fertility guarantees. Predictions are estimates based on the information you enter. For health decisions, consult a qualified healthcare professional. YOUR DAILY RECORD, AT YOUR PACE - Mark today as a period start or edit earlier entries. - Record light, medium, or heavy flow. - Select cramps, headache, bloating, fatigue, nausea, cravings, and other symptoms. - Add your mood and a private journal note in a few taps. CALENDAR AND ON-DEVICE ESTIMATES See logged period days and upcoming estimated days in distinct calendar styles. With enough history, MoonVault calculates average cycle and period length on your device. Until then, it uses the usual lengths you choose in settings. Future dates are always labeled as estimates and are never presented as contraception or fertility guarantees. CARE FOR BODY AND MOOD TOGETHER Gentle wellness messages, your chosen guide character, and optional morning, midday, and evening reminders create small moments of support. Notification wording avoids revealing explicit cycle details on the lock screen. Self-care cards never include exact dates or private journal content. PRIVACY YOU CONTROL MoonVault does not require an email address, phone number, or profile to start. Basic tracking stays on your device by default. If you want, you can turn on optional cloud backup for your account, then restore or delete that backup later. Delete all local data at any time from settings. On supported devices, app lock and Face ID add another layer of protection. Deleting the app may also delete local data if it has not been backed up separately. FREE CORE TRACKING, OPTIONAL PLUS Period logging, calendar, mood, symptoms, and basic estimates remain available. MoonVault Plus adds more themes, personalization, guide choices, and reminder controls without blocking the essential cycle diary. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is device support: MoonVault at 3 against 75 Days's 1. MoonVault also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, 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
Both are free to download. 75 Days sells 11 in-app purchases, starting at $4.99 per 7 days and MoonVault sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
75 Days ships an update every 3 days, MoonVault every 2 days. The most recent releases landed on October 29, 2026 and October 15, 2026 respectively.
| Parameter | 75 Days | MoonVault |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (286 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 286 — better | — |
| Update frequency | Every 3 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 171 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | George Taylor | AHMET MAMI |
In-app purchases
75 Days
- Weekly$4.997 Days
- Weekly$6.997 Days
- Weekly Her$7.997 Days
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- Weekly Trial3 Days trial$8.997 Days
- monthly$9.991 Month
- Monthly$14.991 Month
- Her Monthly$14.991 Month
- yearly discout$24.991 Year
- Yearly Trial3 Days trial$49.991 Year
- yearly$49.991 Year
- Lifetime$49.99
MoonVault
- MoonVault Plus Monthly$2.991 Month
- MoonVault Plus Yearly$19.991 Year
- MoonVault Plus Lifetime$37.00









