picocalc vs 1000digit Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
picocalc
This app displays a single number on your home screen badge, which can be set, added to, or subtracted from. It's a minimalist tool for quick numerical reminders. Negative numbers and zero are not displayed on the badge.
- Set a number
- Add to number
- Subtract from number
- Home screen badge display
- Hides zero and negative numbers
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picocalc is a tiny number memo which can be set, added and subtracted. The number is show as an application badge in the home screen. Zero and a negative number won't be shown in the badge.
1000digit Calc
Perform arithmetic operations on integers up to 1,000 digits. Supports parentheses for complex calculations and automatically saves results to the clipboard for easy reuse in other applications.
- 1,000-digit integer calculations
- Parentheses support for formula order
- Automatic clipboard saving of results
- Four basic arithmetic operations
- Cross-application result reuse
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: 1000digit Calc at none against picocalc's 1. 1000digit Calc also leads on ads (none vs shown) and update cadence (weekly vs every 16 months). picocalc's advantage is ratings volume (3 vs 1). On price, rating, monetization model 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. picocalc sells 1 one-off in-app purchase. 1000digit Calc asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for picocalc against 5.0 for 1000digit Calc. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
picocalc ships an update every 16 months, 1000digit Calc weekly. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.
| Parameter | picocalc | 1000digit Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 65.6% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 16 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Masayuki Akamatsu | Yukihiro Shioya |
In-app purchases
picocalc
- Remove Ads$0.99
1000digit Calc
No in-app purchases
