1000digit Calc vs Lunadar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1000digit Calc
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This is a calculator that can perform four arithmetic operations on integers up to about 1,000 digits. You can use parentheses in formulas, so you can calculate in the same order as in the formula. Calculation results are saved to the clipboard each time, so they can be reused in other applications.
Lunadar
Explore and manage time using a lunar calendar with this intuitive app. It offers detailed lunar date information, including month lengths, and allows for easy event management based on lunar cycles. Experience a unique approach to timekeeping on your iOS device.
- Lunar calendar exploration
- Detailed lunar date information
- Lunar month length display
- Event management based on lunar cycle
- Intuitive user interface
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Lunadar is the perfect companion for you to explore and manage time according to the lunar calendar conveniently and accurately. With a simple and intuitive interface, Lunadar provides detailed information about lunar dates, including the number of days in each lunar month. Easily add and manage your important events based on the lunar cycle right on your iOS device. Discover Lunadar today and experience this unique utility!
Screenshots
Verdict
The clearest difference is update cadence: Lunadar at daily against 1000digit Calc's weekly. 1000digit Calc's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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. Neither carries in-app purchases, so what you see is what you pay.
1000digit Calc ships an update weekly, Lunadar daily. The most recent releases landed on May 17, 2026 and June 19, 2026 respectively.
| Parameter | 1000digit Calc | Lunadar |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Yukihiro Shioya | Huy Ta |
In-app purchases
1000digit Calc
No in-app purchases
Lunadar
No in-app purchases
