# 関数電卓 vs outtimer

The clearest difference is in-app purchases: 関数電卓 at none against outtimer's 4. 関数電卓 also leads on ads (none vs shown). outtimer's advantage is update cadence (every 5 days vs monthly) and iOS requirement (17.0 vs 26.5). On price and device support there is nothing between them.

Both are free to download. outtimer sells 4 in-app purchases, starting at $1.99 per month. 関数電卓 asks for nothing beyond the download.

関数電卓 ships an update monthly, outtimer every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 関数電卓 | outtimer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Size | 8 MB | 43 MB |
| Requires iOS | 26.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) | [polroute](https://appshunter.io/developer/6782382959) |

## What reviewers say

### 関数電卓

[App page](https://appshunter.io/ios/app/scicalc/id6763034302)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### outtimer

[App page](https://appshunter.io/ios/app/outtimer-on-time-voice-timer/id6814711918)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro | $1.99 | per month |
| pro(year) | $6.99 | per year |
| Premium | $0.99 | one-time |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is 関数電卓 free?

関数電卓 is free to download, with no in-app purchases.

### Is outtimer free?

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

### Do 関数電卓 or outtimer have ads?

outtimer shows ads; 関数電卓 does not.

### Which is updated more often, 関数電卓 or outtimer?

関数電卓 ships an update monthly, and outtimer every 5 days. Most recently, 関数電卓 was updated on October 25, 2026 and outtimer on October 24, 2026.

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