Use It Up vs ZenLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Use It Up
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Do you have expensive skincare, supplements, or everyday essentials that end up forgotten and expired before you can finish them? Use It Up is a thoughtful and minimalist tracker designed to help you build regular habits, finish what you start, and maximize the value of everything you own. [ KEY FEATURES ] 1. Smart Frequency and Rhythm Tracking - Set flexible intervals like 2 times every 3 days or interval-based cadences. - Automatically project completion dates so your lifestyle stays balanced and intentional. 2. Cost-Per-Use Calculation - Enter the purchase price and total quantity. - Watch your cost-per-use decrease with each check-in, turning consistent usage into a rewarding experience. 3. Expiry and Shelf-Life Management - Log production and expiration dates. - Clear countdown displays prevent good products from going to waste. 4. Visual Calendar and Usage History - Review your habits with intuitive monthly and yearly calendar views. - Keep detailed check-in records to track your journey. 5. Home and Lock Screen Widgets - Keep your daily tasks and item progress front and center without opening the app. 6. Custom Categories and Empty Bottle Archive - Organize items by skincare, vitamins, subscriptions, or household consumables. - Archive finished products to celebrate every milestone. [ PRIVACY AND TRANSPARENCY ] - Privacy First: Ad-free, zero third-party trackers, and seamless Apple iCloud sync. - Data Ownership: Export or restore complete local JSON backups at any time. - Lifetime Purchase: No subscription anxiety. Pay once for permanent access to all current and future Pro features. Give every item the appreciation it deserves. Start building your rhythm today with Use It Up! Privacy Policy: https://7g9js.notion.site/144f32e5edad8079899bf6c9475744de
ZenLog
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Habits that last, without even noticing ZenLog is designed to make daily logging effortless and natural. No more hassle, no more forgetting — every step of the recording process is carefully crafted to feel smooth and intuitive. Bring together all kinds of data stored on your iPhone into one place, so you can see your life at a glance. With Apple Intelligence, AI summarizes your daily records, turning them into meaningful reflections. Optimized for iOS26 with a beautiful, modern design, ZenLog will continue to evolve with you. Start building habits that truly last — naturally, with ZenLog. *** Features *** ・Activity & Habit Tracking Create experiences you want to turn into habits in advance, or use templates to get started. You can choose between two modes: recording only the moment you start, or recording both start and end times. By setting tags, your data will be automatically categorized for analysis. ・Easy Logging Once you’ve registered your activities, recording is just one tap away. If an activity has tags, you can select them when starting a log. ・Detailed Statistics Get detailed statistics such as frequency, active days, breakdown by weekdays, and time slots. These insights help keep you motivated to stay consistent. ・AI-Powered Reports On Apple Intelligence–enabled devices, you’ll receive AI-generated reports. They summarize your daily records, making it easy to reflect on what kind of day you had. ・Integration with Various Data Your iPhone stores a wealth of experiences and daily activities. Photos and Health data can be displayed on your weekly timeline, giving you a more vivid picture of your day. ・Quick Logging with Apple Watch Record instantly, right when you want to, directly from your Apple Watch. ・Optimized for iOS 26 This app is available exclusively on devices running iOS 26 or later. *** Subscription – All Features, One Price *** A subscription is required to use ZenLog. With a single, flat rate, you can access all features. A free trial is available, so feel free to try it out first. After the trial ends, the fee will be charged to your Apple ID. If you do not wish to continue, please make sure to cancel your subscription before the trial period ends. Terms of Use (Apple Standard EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Use It Up at 17.0 against ZenLog's 26.0. 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. Use It Up sells 1 one-off in-app purchase and ZenLog sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Use It Up ships an update every 3 days, ZenLog every 2 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | Use It Up | ZenLog |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 5 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 绅士 李 | Yutaka Ino |
In-app purchases
Use It Up
- Pro Account$2.99
ZenLog
- Monthly Plan14 Days trial$3.991 Month









