# Trial&Error vs アプリロック・スマホ依存対策

The clearest difference is ads: アプリロック・スマホ依存対策 at none against Trial&Error's shown. Trial&Error's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Trial&Error sells 2 in-app purchases, starting at $0.49 per month and アプリロック・スマホ依存対策 sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Trial&Error ships an update weekly, アプリロック・スマホ依存対策 every 11 days. The most recent releases landed on September 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Trial&Error | アプリロック・スマホ依存対策 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 11 days |
| Size | 17 MB | 3 MB |
| Requires iOS | **15.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Naruhito Ozawa](https://appshunter.io/developer/1166703594) | [Kameda Hakuto](https://appshunter.io/developer/1852812770) |

## What reviewers say

### Trial&Error

[App page](https://appshunter.io/ios/app/trial-and-error/id1612021152)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly fee | $0.49 | per month |
| PremiumPlan(onetime-purchase) | $2.99 | one-time |


### アプリロック・スマホ依存対策

[App page](https://appshunter.io/ios/app/walock/id6762241943)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Walock Pro | $5.99 | per month |
| Walock Pro 年額プラン | $29.99 | per year |


## Frequently asked questions

### Is Trial&Error free?

Trial&Error is free to download, with in-app purchases available.

### Is アプリロック・スマホ依存対策 free?

アプリロック・スマホ依存対策 is free to download, with in-app purchases available.

### Do Trial&Error or アプリロック・スマホ依存対策 have ads?

Trial&Error shows ads; アプリロック・スマホ依存対策 does not.

### Which is updated more often, Trial&Error or アプリロック・スマホ依存対策?

Trial&Error ships an update weekly, and アプリロック・スマホ依存対策 every 11 days. Most recently, Trial&Error was updated on September 13, 2026 and アプリロック・スマホ依存対策 on September 26, 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.*