Calculator vs Time Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This utility app allows users to perform calculations and view the formulas used. It offers the ability to edit past calculations and share results via email or memos. An optional purchase can remove advertisements.
- View calculation formulas
- Edit past formulas
- Share calculations
- Ad-free option via purchase
- Output to memos or email
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This is a calculator. You can see the formula. You can edit formulas later. To edit a formula, tap the place you want to edit. Purchasing an option allows you to turn off advertisements. Since there is a sharing function, you can output calculation formulas and results to memos or send them by e-mail.
Time Notes
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Time Notes is a versatile diary app designed to capture every precious moment in life. It integrates mood journaling, inspiration recording, and goal planning, becoming a reliable companion for sorting out emotions and managing life. Mood Journaling Record daily moods with text, emojis, or simple sketches. Mark the weather and environment when the mood occurs to form a vivid mood log. Over time, it automatically generates a mood trend chart, helping you better understand your emotional changes and find the factors that affect your mood. Inspiration Recording Seize fleeting inspirations anytime and anywhere. Whether it's a sudden creative idea, a profound insight in reading, or an interesting life detail, you can quickly record it with text, voice, or photos. The app supports keyword tagging, making it easy to search and organize inspirations, turning fragmented thoughts into valuable resources. Goal Planning Set short-term and long-term goals, break them down into actionable steps, and set completion deadlines. The app sends timely reminders to ensure you don't miss important progress nodes. It also records the completion status of each step, showing the goal achievement process intuitively through progress bars and statistics, motivating you to keep moving forward. Time Notes focuses on user experience with a simple and elegant interface and smooth operation. It ensures the security of your records through password protection and data encryption. Let Time Notes witness your growth and accompany you to live a more organized and fulfilling life. Privacy Policy:https://sites.google.com/view/time-notes/privacy-policy EULA:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Time Notes at none against Calculator's 1. Time Notes also leads on ads (none vs shown). Calculator's advantage is device support (3 vs 1). On price, update cadence and iOS requirement 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. Calculator sells 1 one-off in-app purchase. Time Notes asks for nothing beyond the download.
Calculator ships an update every 2 months, Time Notes every 3 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.
| Parameter | Calculator | Time Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (10 ratings) — better | — |
| Positive reviews | 42.9% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideki Ogawa | FENGHUI (HK) HOLDINGS LIMITED |
In-app purchases
Calculator
- Remove in-app ads$2.99
Time Notes
No in-app purchases








