# 1000digit Calc vs TaskSync

The clearest difference is in-app purchases: 1000digit Calc at none against TaskSync's 1. 1000digit Calc also leads on iOS requirement (15.0 vs 17.6). TaskSync's advantage is update cadence (daily vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. TaskSync sells 1 one-off in-app purchase. 1000digit Calc asks for nothing beyond the download.

1000digit Calc ships an update weekly, TaskSync daily. The most recent releases landed on May 17, 2026 and May 18, 2026 respectively.

## The numbers

| Metric | 1000digit Calc | TaskSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 5 MB | 6 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) | [Satoshi Sakuma](https://appshunter.io/developer/1791815850) |

## What reviewers say

### 1000digit Calc

[App page](https://appshunter.io/ios/app/1000digit-calc/id6463856899)

**Features:** macOS Compatibility

**In-app purchases:** none


### TaskSync

[App page](https://appshunter.io/ios/app/tasksync-custom-memo-app/id6741540253)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プロ版機能 | $5.99 | one-time |


## Frequently asked questions

### Is 1000digit Calc free?

1000digit Calc is free to download, with no in-app purchases.

### Is TaskSync free?

TaskSync is free to download, with in-app purchases available.

### Do 1000digit Calc or TaskSync have ads?

Neither 1000digit Calc nor TaskSync shows ads.

### Which is updated more often, 1000digit Calc or TaskSync?

1000digit Calc ships an update weekly, and TaskSync daily. Most recently, 1000digit Calc was updated on May 17, 2026 and TaskSync on May 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*